bind (almost) all miniaudio functions

7 files changed, 893 insertions, 477 deletions

diff --git a/demo/fancy/honey.lua b/demo/fancy/main.lua
index 5a93a0e..54472c5 100644
--- a/demo/fancy/honey.lua
+++ b/demo/fancy/main.lua
@@ -4,8 +4,8 @@ local window = honey.window
 
 --===== initialize audio =====--
 
-local engine = honey.audio.engine_init()
-honey.audio.engine_play_sound(engine, 'example_sound.ogg')
+local result, engine = honey.ma.engine_init({})
+honey.ma.engine_play_sound(engine, 'example_sound.ogg', nil)
 
 
 --====== initialize opengl ======--
@@ -314,6 +314,6 @@ end
 
 window.destroy(w)
 gl.Terminate()
-honey.audio.engine_uninit(engine)
+honey.ma.engine_uninit(engine)
 --image.surface_destroy(surface)
 --image.context_destroy(cr)
diff --git a/src/audio/CMakeLists.txt b/src/audio/CMakeLists.txt
index 8d38f01..c4b333c 100644
--- a/src/audio/CMakeLists.txt
+++ b/src/audio/CMakeLists.txt
@@ -5,4 +5,5 @@ target_sources(honey PUBLIC
 	${CMAKE_CURRENT_LIST_DIR}/setup.c
 	${CMAKE_CURRENT_LIST_DIR}/engine.c
 	${CMAKE_CURRENT_LIST_DIR}/sound.c
+	${CMAKE_CURRENT_LIST_DIR}/sound_group.c
 )
diff --git a/src/audio/audio.h b/src/audio/audio.h
index 984e1ea..0ea02d0 100644
--- a/src/audio/audio.h
+++ b/src/audio/audio.h
@@ -12,6 +12,7 @@ void ma_push_node(lua_State *L, ma_node *n);
 	X("ma.engine", ma_engine_tname) \
 	X("ma.node", ma_node_tname) \
 	X("ma.sound", ma_sound_tname) \
+	X("ma.sound_group", ma_sound_group_tname) \
 
 #define X(name, mt) extern const char *mt;
 AUDIO_METATABLES
@@ -20,98 +21,152 @@ AUDIO_METATABLES
 
 #define AUDIO_FUNCTIONS \
 	/* engine */ \
-	X("ma_engine_init", ma_engine_init_bind) \
-	X("ma_engine_uninit", ma_engine_uninit_bind) \
-	X("ma_engine_get_endpoint", ma_engine_get_endpoint_bind) \
-	X("ma_engine_get_time", ma_engine_get_time_bind) \
-	X("ma_engine_set_time", ma_engine_set_time_bind) \
-	X("ma_engine_get_channels", ma_engine_get_channels_bind) \
-	X("ma_engine_get_sample_rate", ma_engine_get_sample_rate_bind) \
-	X("ma_engine_start", ma_engine_start_bind) \
-	X("ma_engine_stop", ma_engine_stop_bind) \
-	X("ma_engine_set_volume", ma_engine_set_volume_bind) \
-	X("ma_engine_set_gain_db", ma_engine_set_gain_db_bind) \
-	X("ma_engine_get_listener_count", ma_engine_get_listener_count_bind) \
-	X("ma_engine_find_closest_listener", ma_engine_find_closest_listener_bind) \
-	X("ma_engine_listener_set_position", ma_engine_listener_set_position_bind) \
-	X("ma_engine_listener_get_position", ma_engine_listener_get_position_bind) \
-	X("ma_engine_listener_set_direction", ma_engine_listener_set_direction_bind) \
-	X("ma_engine_listener_get_direction", ma_engine_listener_get_direction_bind) \
-	X("ma_engine_listener_set_velocity", ma_engine_listener_set_velocity_bind) \
-	X("ma_engine_listener_get_velocity", ma_engine_listener_get_velocity_bind) \
-	X("ma_engine_listener_set_cone", ma_engine_listener_set_cone_bind) \
-	X("ma_engine_listener_get_cone", ma_engine_listener_get_cone_bind) \
-	X("ma_engine_listener_set_world_up", ma_engine_listener_set_world_up_bind) \
-	X("ma_engine_listener_get_world_up", ma_engine_listener_get_world_up_bind) \
-	X("ma_engine_listener_set_enabled", ma_engine_listener_set_enabled_bind) \
-	X("ma_engine_listener_is_enabled", ma_engine_listener_is_enabled_bind) \
-	X("ma_engine_play_sound_ex", ma_engine_play_sound_ex_bind) \
-	X("ma_engine_play_sound", ma_engine_play_sound_bind) \
+	X("engine_init", ma_engine_init_bind) \
+	X("engine_uninit", ma_engine_uninit_bind) \
+	X("engine_get_time", ma_engine_get_time_bind) \
+	X("engine_set_time", ma_engine_set_time_bind) \
+	X("engine_get_channels", ma_engine_get_channels_bind) \
+	X("engine_get_sample_rate", ma_engine_get_sample_rate_bind) \
+	X("engine_start", ma_engine_start_bind) \
+	X("engine_stop", ma_engine_stop_bind) \
+	X("engine_set_volume", ma_engine_set_volume_bind) \
+	X("engine_set_gain_db", ma_engine_set_gain_db_bind) \
+	X("engine_get_listener_count", ma_engine_get_listener_count_bind) \
+	X("engine_find_closest_listener", ma_engine_find_closest_listener_bind) \
+	X("engine_listener_set_position", ma_engine_listener_set_position_bind) \
+	X("engine_listener_get_position", ma_engine_listener_get_position_bind) \
+	X("engine_listener_set_direction", ma_engine_listener_set_direction_bind) \
+	X("engine_listener_get_direction", ma_engine_listener_get_direction_bind) \
+	X("engine_listener_set_velocity", ma_engine_listener_set_velocity_bind) \
+	X("engine_listener_get_velocity", ma_engine_listener_get_velocity_bind) \
+	X("engine_listener_set_cone", ma_engine_listener_set_cone_bind) \
+	X("engine_listener_get_cone", ma_engine_listener_get_cone_bind) \
+	X("engine_listener_set_world_up", ma_engine_listener_set_world_up_bind) \
+	X("engine_listener_get_world_up", ma_engine_listener_get_world_up_bind) \
+	X("engine_listener_set_enabled", ma_engine_listener_set_enabled_bind) \
+	X("engine_listener_is_enabled", ma_engine_listener_is_enabled_bind) \
+	X("engine_play_sound_ex", ma_engine_play_sound_ex_bind) \
+	X("engine_play_sound", ma_engine_play_sound_bind) \
 \
 	/* sound */ \
-	X("ma_sound_init_from_file", ma_sound_init_from_file_bind) \
-	X("ma_sound_init_copy", ma_sound_init_copy_bind) \
-	X("ma_sound_uninit", ma_sound_uninit_bind) \
-	X("ma_sound_start", ma_sound_start_bind) \
-	X("ma_sound_stop", ma_sound_stop_bind) \
-	X("ma_sound_set_volume", ma_sound_set_volume_bind) \
-	X("ma_sound_get_volume", ma_sound_get_volume_bind) \
-	X("ma_sound_set_pan", ma_sound_set_pan_bind) \
-	X("ma_sound_get_pan", ma_sound_get_pan_bind) \
-	X("ma_sound_set_pan_mode", ma_sound_set_pan_mode_bind) \
-	X("ma_sound_get_pan_mode", ma_sound_get_pan_mode_bind) \
-	X("ma_sound_set_pitch", ma_sound_set_pitch_bind) \
-	X("ma_sound_get_pitch", ma_sound_get_pitch_bind) \
-	X("ma_sound_set_spatialization_enabled", ma_sound_set_spatialization_enabled_bind) \
-	X("ma_sound_is_spatialization_enabled", ma_sound_is_spatialization_enabled_bind) \
-	X("ma_sound_set_pinned_listener_index", ma_sound_set_pinned_listener_index_bind) \
-	X("ma_sound_get_pinned_listener_index", ma_sound_get_pinned_listener_index_bind) \
-	X("ma_sound_get_listener_index", ma_sound_get_listener_index_bind) \
-	X("ma_sound_get_direction_to_listener", ma_sound_get_direction_to_listener_bind) \
-	X("ma_sound_set_position", ma_sound_set_position_bind) \
-	X("ma_sound_get_position", ma_sound_get_position_bind) \
-	X("ma_sound_set_direction", ma_sound_set_direction_bind) \
-	X("ma_sound_get_direction", ma_sound_get_direction_bind) \
-	X("ma_sound_set_velocity", ma_sound_set_velocity_bind) \
-	X("ma_sound_get_velocity", ma_sound_get_velocity_bind) \
-	X("ma_sound_set_attenuation_model", ma_sound_set_attenuation_model_bind) \
-	X("ma_sound_get_attenuation_model", ma_sound_get_attenuation_model_bind) \
-	X("ma_sound_set_positioning", ma_sound_set_positioning_bind) \
-	X("ma_sound_get_positioning", ma_sound_get_positioning_bind) \
-	X("ma_sound_set_rolloff", ma_sound_set_rolloff_bind) \
-	X("ma_sound_get_rolloff", ma_sound_get_rolloff_bind) \
-	X("ma_sound_set_min_gain", ma_sound_set_min_gain_bind) \
-	X("ma_sound_get_min_gain", ma_sound_get_min_gain_bind) \
-	X("ma_sound_set_max_gain", ma_sound_set_max_gain_bind) \
-	X("ma_sound_get_max_gain", ma_sound_get_max_gain_bind) \
-	X("ma_sound_set_min_distance", ma_sound_set_min_distance_bind) \
-	X("ma_sound_get_min_distance", ma_sound_get_min_distance_bind) \
-	X("ma_sound_set_max_distance", ma_sound_set_max_distance_bind) \
-	X("ma_sound_get_max_distance", ma_sound_get_max_distance_bind) \
-	X("ma_sound_set_cone", ma_sound_set_cone_bind) \
-	X("ma_sound_get_cone", ma_sound_get_cone_bind) \
-	X("ma_sound_set_doppler_factor", ma_sound_set_doppler_factor_bind) \
-	X("ma_sound_get_doppler_factor", ma_sound_get_doppler_factor_bind) \
-	X("ma_sound_set_directional_attenuation_factor", ma_sound_set_directional_attenuation_factor_bind) \
-	X("ma_sound_get_directional_attenuation_factor", ma_sound_get_directional_attenuation_factor_bind) \
-	X("ma_sound_set_fade_in_pcm_frames", ma_sound_set_fade_in_pcm_frames_bind) \
-	X("ma_sound_set_fade_in_milliseconds", ma_sound_set_fade_in_milliseconds_bind) \
-	X("ma_sound_get_current_fade_volume", ma_sound_get_current_fade_volume_bind) \
-	X("ma_sound_set_start_time_in_pcm_frames", ma_sound_set_start_time_in_pcm_frames_bind) \
-	X("ma_sound_set_start_time_in_milliseconds", ma_sound_set_start_time_in_milliseconds_bind) \
-	X("ma_sound_set_stop_time_in_pcm_frames", ma_sound_set_stop_time_in_pcm_frames_bind) \
-	X("ma_sound_set_stop_time_in_milliseconds", ma_sound_set_stop_time_in_milliseconds_bind) \
-	X("ma_sound_is_playing", ma_sound_is_playing_bind) \
-	X("ma_sound_get_time_in_pcm_frames", ma_sound_get_time_in_pcm_frames_bind) \
-	X("ma_sound_set_looping", ma_sound_set_looping_bind) \
-	X("ma_sound_is_looping", ma_sound_is_looping_bind) \
-	X("ma_sound_at_end", ma_sound_at_end_bind) \
-	X("ma_sound_seek_to_pcm_frame", ma_sound_seek_to_pcm_frame_bind) \
-	X("ma_sound_get_data_format", ma_sound_get_data_format_bind) \
-	X("ma_sound_get_cursor_in_pcm_frames", ma_sound_get_cursor_in_pcm_frames_bind) \
-	X("ma_sound_get_length_in_pcm_frames", ma_sound_get_length_in_pcm_frames_bind) \
-	X("ma_sound_get_cursor_in_seconds", ma_sound_get_cursor_in_seconds_bind) \
-	X("ma_sound_get_length_in_seconds", ma_sound_get_length_in_seconds_bind) \
+	X("sound_init_from_file", ma_sound_init_from_file_bind) \
+	X("sound_init_copy", ma_sound_init_copy_bind) \
+	X("sound_uninit", ma_sound_uninit_bind) \
+	X("sound_start", ma_sound_start_bind) \
+	X("sound_stop", ma_sound_stop_bind) \
+	X("sound_set_volume", ma_sound_set_volume_bind) \
+	X("sound_get_volume", ma_sound_get_volume_bind) \
+	X("sound_set_pan", ma_sound_set_pan_bind) \
+	X("sound_get_pan", ma_sound_get_pan_bind) \
+	X("sound_set_pan_mode", ma_sound_set_pan_mode_bind) \
+	X("sound_get_pan_mode", ma_sound_get_pan_mode_bind) \
+	X("sound_set_pitch", ma_sound_set_pitch_bind) \
+	X("sound_get_pitch", ma_sound_get_pitch_bind) \
+	X("sound_set_spatialization_enabled", ma_sound_set_spatialization_enabled_bind) \
+	X("sound_is_spatialization_enabled", ma_sound_is_spatialization_enabled_bind) \
+	X("sound_set_pinned_listener_index", ma_sound_set_pinned_listener_index_bind) \
+	X("sound_get_pinned_listener_index", ma_sound_get_pinned_listener_index_bind) \
+	X("sound_get_listener_index", ma_sound_get_listener_index_bind) \
+	X("sound_get_direction_to_listener", ma_sound_get_direction_to_listener_bind) \
+	X("sound_set_position", ma_sound_set_position_bind) \
+	X("sound_get_position", ma_sound_get_position_bind) \
+	X("sound_set_direction", ma_sound_set_direction_bind) \
+	X("sound_get_direction", ma_sound_get_direction_bind) \
+	X("sound_set_velocity", ma_sound_set_velocity_bind) \
+	X("sound_get_velocity", ma_sound_get_velocity_bind) \
+	X("sound_set_attenuation_model", ma_sound_set_attenuation_model_bind) \
+	X("sound_get_attenuation_model", ma_sound_get_attenuation_model_bind) \
+	X("sound_set_positioning", ma_sound_set_positioning_bind) \
+	X("sound_get_positioning", ma_sound_get_positioning_bind) \
+	X("sound_set_rolloff", ma_sound_set_rolloff_bind) \
+	X("sound_get_rolloff", ma_sound_get_rolloff_bind) \
+	X("sound_set_min_gain", ma_sound_set_min_gain_bind) \
+	X("sound_get_min_gain", ma_sound_get_min_gain_bind) \
+	X("sound_set_max_gain", ma_sound_set_max_gain_bind) \
+	X("sound_get_max_gain", ma_sound_get_max_gain_bind) \
+	X("sound_set_min_distance", ma_sound_set_min_distance_bind) \
+	X("sound_get_min_distance", ma_sound_get_min_distance_bind) \
+	X("sound_set_max_distance", ma_sound_set_max_distance_bind) \
+	X("sound_get_max_distance", ma_sound_get_max_distance_bind) \
+	X("sound_set_cone", ma_sound_set_cone_bind) \
+	X("sound_get_cone", ma_sound_get_cone_bind) \
+	X("sound_set_doppler_factor", ma_sound_set_doppler_factor_bind) \
+	X("sound_get_doppler_factor", ma_sound_get_doppler_factor_bind) \
+	X("sound_set_directional_attenuation_factor", ma_sound_set_directional_attenuation_factor_bind) \
+	X("sound_get_directional_attenuation_factor", ma_sound_get_directional_attenuation_factor_bind) \
+	X("sound_set_fade_in_pcm_frames", ma_sound_set_fade_in_pcm_frames_bind) \
+	X("sound_set_fade_in_milliseconds", ma_sound_set_fade_in_milliseconds_bind) \
+	X("sound_get_current_fade_volume", ma_sound_get_current_fade_volume_bind) \
+	X("sound_set_start_time_in_pcm_frames", ma_sound_set_start_time_in_pcm_frames_bind) \
+	X("sound_set_start_time_in_milliseconds", ma_sound_set_start_time_in_milliseconds_bind) \
+	X("sound_set_stop_time_in_pcm_frames", ma_sound_set_stop_time_in_pcm_frames_bind) \
+	X("sound_set_stop_time_in_milliseconds", ma_sound_set_stop_time_in_milliseconds_bind) \
+	X("sound_is_playing", ma_sound_is_playing_bind) \
+	X("sound_get_time_in_pcm_frames", ma_sound_get_time_in_pcm_frames_bind) \
+	X("sound_set_looping", ma_sound_set_looping_bind) \
+	X("sound_is_looping", ma_sound_is_looping_bind) \
+	X("sound_at_end", ma_sound_at_end_bind) \
+	X("sound_seek_to_pcm_frame", ma_sound_seek_to_pcm_frame_bind) \
+	X("sound_get_data_format", ma_sound_get_data_format_bind) \
+	X("sound_get_cursor_in_pcm_frames", ma_sound_get_cursor_in_pcm_frames_bind) \
+	X("sound_get_length_in_pcm_frames", ma_sound_get_length_in_pcm_frames_bind) \
+	X("sound_get_cursor_in_seconds", ma_sound_get_cursor_in_seconds_bind) \
+	X("sound_get_length_in_seconds", ma_sound_get_length_in_seconds_bind) \
+\
+	/* sound group */ \
+	X("sound_group_init", ma_sound_group_init_bind) \
+	X("sound_group_uninit", ma_sound_group_uninit_bind) \
+	X("sound_group_start", ma_sound_group_start_bind) \
+	X("sound_group_stop", ma_sound_group_stop_bind) \
+	X("sound_group_set_volume", ma_sound_group_set_volume_bind) \
+	X("sound_group_get_volume", ma_sound_group_get_volume_bind) \
+	X("sound_group_set_pan", ma_sound_group_set_pan_bind) \
+	X("sound_group_get_pan", ma_sound_group_get_pan_bind) \
+	X("sound_group_set_pan_mode", ma_sound_group_set_pan_mode_bind) \
+	X("sound_group_get_pan_mode", ma_sound_group_get_pan_mode_bind) \
+	X("sound_group_set_pitch", ma_sound_group_set_pitch_bind) \
+	X("sound_group_get_pitch", ma_sound_group_get_pitch_bind) \
+	X("sound_group_set_spatialization_enabled", ma_sound_group_set_spatialization_enabled_bind) \
+	X("sound_group_is_spatialization_enabled", ma_sound_group_is_spatialization_enabled_bind) \
+	X("sound_group_set_pinned_listener_index", ma_sound_group_set_pinned_listener_index_bind) \
+	X("sound_group_get_pinned_listener_index", ma_sound_group_get_pinned_listener_index_bind) \
+	X("sound_group_get_listener_index", ma_sound_group_get_listener_index_bind) \
+	X("sound_group_get_direction_to_listener", ma_sound_group_get_direction_to_listener_bind) \
+	X("sound_group_set_position", ma_sound_group_set_position_bind) \
+	X("sound_group_get_position", ma_sound_group_get_position_bind) \
+	X("sound_group_set_direction", ma_sound_group_set_direction_bind) \
+	X("sound_group_get_direction", ma_sound_group_get_direction_bind) \
+	X("sound_group_set_velocity", ma_sound_group_set_velocity_bind) \
+	X("sound_group_get_velocity", ma_sound_group_get_velocity_bind) \
+	X("sound_group_set_attenuation_model", ma_sound_group_set_attenuation_model_bind) \
+	X("sound_group_get_attenuation_model", ma_sound_group_get_attenuation_model_bind) \
+	X("sound_group_set_positioning", ma_sound_group_set_positioning_bind) \
+	X("sound_group_get_positioning", ma_sound_group_get_positioning_bind) \
+	X("sound_group_set_rolloff", ma_sound_group_set_rolloff_bind) \
+	X("sound_group_get_rolloff", ma_sound_group_get_rolloff_bind) \
+	X("sound_group_set_min_gain", ma_sound_group_set_min_gain_bind) \
+	X("sound_group_get_min_gain", ma_sound_group_get_min_gain_bind) \
+	X("sound_group_set_max_gain", ma_sound_group_set_max_gain_bind) \
+	X("sound_group_get_max_gain", ma_sound_group_get_max_gain_bind) \
+	X("sound_group_set_min_distance", ma_sound_group_set_min_distance_bind) \
+	X("sound_group_get_min_distance", ma_sound_group_get_min_distance_bind) \
+	X("sound_group_set_max_distance", ma_sound_group_set_max_distance_bind) \
+	X("sound_group_get_max_distance", ma_sound_group_get_max_distance_bind) \
+	X("sound_group_set_cone", ma_sound_group_set_cone_bind) \
+	X("sound_group_get_cone", ma_sound_group_get_cone_bind) \
+	X("sound_group_set_doppler_factor", ma_sound_group_set_doppler_factor_bind) \
+	X("sound_group_get_doppler_factor", ma_sound_group_get_doppler_factor_bind) \
+	X("sound_group_set_directional_attenuation_factor", ma_sound_group_set_directional_attenuation_factor_bind) \
+	X("sound_group_get_directional_attenuation_factor", ma_sound_group_get_directional_attenuation_factor_bind) \
+	X("sound_group_set_fade_in_pcm_frames", ma_sound_group_set_fade_in_pcm_frames_bind) \
+	X("sound_group_set_fade_in_milliseconds", ma_sound_group_set_fade_in_milliseconds_bind) \
+	X("sound_group_get_current_fade_volume", ma_sound_group_get_current_fade_volume_bind) \
+	X("sound_group_set_start_time_in_pcm_frames", ma_sound_group_set_start_time_in_pcm_frames_bind) \
+	X("sound_group_set_start_time_in_milliseconds", ma_sound_group_set_start_time_in_milliseconds_bind) \
+	X("sound_group_set_stop_time_in_pcm_frames", ma_sound_group_set_stop_time_in_pcm_frames_bind) \
+	X("sound_group_set_stop_time_in_milliseconds", ma_sound_group_set_stop_time_in_milliseconds_bind) \
+	X("sound_group_is_playing", ma_sound_group_is_playing_bind) \
+	X("sound_group_get_time_in_pcm_frames", ma_sound_group_get_time_in_pcm_frames_bind) \
 
 
 #define X(name, func) int func(lua_State *L);
diff --git a/src/audio/bind b/src/audio/bind
index 6f7e41c..3a9befe 100644
--- a/src/audio/bind
+++ b/src/audio/bind
@@ -1,68 +1,55 @@
-ma_result ma_sound_init_from_file(ma_engine* pEngine, const char* pFilePath, ma_uint32 flags, ma_sound_group* pGroup, ma_fence* pDoneFence, ma_sound* pSound);
-ma_result ma_sound_init_from_file_w(ma_engine* pEngine, const wchar_t* pFilePath, ma_uint32 flags, ma_sound_group* pGroup, ma_fence* pDoneFence, ma_sound* pSound);
-ma_result ma_sound_init_copy(ma_engine* pEngine, const ma_sound* pExistingSound, ma_uint32 flags, ma_sound_group* pGroup, ma_sound* pSound);
-ma_result ma_sound_init_from_data_source(ma_engine* pEngine, ma_data_source* pDataSource, ma_uint32 flags, ma_sound_group* pGroup, ma_sound* pSound);
-ma_result ma_sound_init_ex(ma_engine* pEngine, const ma_sound_config* pConfig, ma_sound* pSound);
-void ma_sound_uninit(ma_sound* pSound);
-ma_engine* ma_sound_get_engine(const ma_sound* pSound);
-ma_data_source* ma_sound_get_data_source(const ma_sound* pSound);
-ma_result ma_sound_start(ma_sound* pSound);
-ma_result ma_sound_stop(ma_sound* pSound);
-void ma_sound_set_volume(ma_sound* pSound, float volume);
-float ma_sound_get_volume(const ma_sound* pSound);
-void ma_sound_set_pan(ma_sound* pSound, float pan);
-float ma_sound_get_pan(const ma_sound* pSound);
-void ma_sound_set_pan_mode(ma_sound* pSound, ma_pan_mode panMode);
-ma_pan_mode ma_sound_get_pan_mode(const ma_sound* pSound);
-void ma_sound_set_pitch(ma_sound* pSound, float pitch);
-float ma_sound_get_pitch(const ma_sound* pSound);
-void ma_sound_set_spatialization_enabled(ma_sound* pSound, ma_bool32 enabled);
-ma_bool32 ma_sound_is_spatialization_enabled(const ma_sound* pSound);
-void ma_sound_set_pinned_listener_index(ma_sound* pSound, ma_uint32 listenerIndex);
-ma_uint32 ma_sound_get_pinned_listener_index(const ma_sound* pSound);
-ma_uint32 ma_sound_get_listener_index(const ma_sound* pSound);
-ma_vec3f ma_sound_get_direction_to_listener(const ma_sound* pSound);
-void ma_sound_set_position(ma_sound* pSound, float x, float y, float z);
-ma_vec3f ma_sound_get_position(const ma_sound* pSound);
-void ma_sound_set_direction(ma_sound* pSound, float x, float y, float z);
-ma_vec3f ma_sound_get_direction(const ma_sound* pSound);
-void ma_sound_set_velocity(ma_sound* pSound, float x, float y, float z);
-ma_vec3f ma_sound_get_velocity(const ma_sound* pSound);
-void ma_sound_set_attenuation_model(ma_sound* pSound, ma_attenuation_model attenuationModel);
-ma_attenuation_model ma_sound_get_attenuation_model(const ma_sound* pSound);
-void ma_sound_set_positioning(ma_sound* pSound, ma_positioning positioning);
-ma_positioning ma_sound_get_positioning(const ma_sound* pSound);
-void ma_sound_set_rolloff(ma_sound* pSound, float rolloff);
-float ma_sound_get_rolloff(const ma_sound* pSound);
-void ma_sound_set_min_gain(ma_sound* pSound, float minGain);
-float ma_sound_get_min_gain(const ma_sound* pSound);
-void ma_sound_set_max_gain(ma_sound* pSound, float maxGain);
-float ma_sound_get_max_gain(const ma_sound* pSound);
-void ma_sound_set_min_distance(ma_sound* pSound, float minDistance);
-float ma_sound_get_min_distance(const ma_sound* pSound);
-void ma_sound_set_max_distance(ma_sound* pSound, float maxDistance);
-float ma_sound_get_max_distance(const ma_sound* pSound);
-void ma_sound_set_cone(ma_sound* pSound, float innerAngleInRadians, float outerAngleInRadians, float outerGain);
-void ma_sound_get_cone(const ma_sound* pSound, float* pInnerAngleInRadians, float* pOuterAngleInRadians, float* pOuterGain);
-void ma_sound_set_doppler_factor(ma_sound* pSound, float dopplerFactor);
-float ma_sound_get_doppler_factor(const ma_sound* pSound);
-void ma_sound_set_directional_attenuation_factor(ma_sound* pSound, float directionalAttenuationFactor);
-float ma_sound_get_directional_attenuation_factor(const ma_sound* pSound);
-void ma_sound_set_fade_in_pcm_frames(ma_sound* pSound, float volumeBeg, float volumeEnd, ma_uint64 fadeLengthInFrames);
-void ma_sound_set_fade_in_milliseconds(ma_sound* pSound, float volumeBeg, float volumeEnd, ma_uint64 fadeLengthInMilliseconds);
-float ma_sound_get_current_fade_volume(ma_sound* pSound);
-void ma_sound_set_start_time_in_pcm_frames(ma_sound* pSound, ma_uint64 absoluteGlobalTimeInFrames);
-void ma_sound_set_start_time_in_milliseconds(ma_sound* pSound, ma_uint64 absoluteGlobalTimeInMilliseconds);
-void ma_sound_set_stop_time_in_pcm_frames(ma_sound* pSound, ma_uint64 absoluteGlobalTimeInFrames);
-void ma_sound_set_stop_time_in_milliseconds(ma_sound* pSound, ma_uint64 absoluteGlobalTimeInMilliseconds);
-ma_bool32 ma_sound_is_playing(const ma_sound* pSound);
-ma_uint64 ma_sound_get_time_in_pcm_frames(const ma_sound* pSound);
-void ma_sound_set_looping(ma_sound* pSound, ma_bool32 isLooping);
-ma_bool32 ma_sound_is_looping(const ma_sound* pSound);
-ma_bool32 ma_sound_at_end(const ma_sound* pSound);
-ma_result ma_sound_seek_to_pcm_frame(ma_sound* pSound, ma_uint64 frameIndex); 
-ma_result ma_sound_get_data_format(ma_sound* pSound, ma_format* pFormat, ma_uint32* pChannels, ma_uint32* pSampleRate, ma_channel* pChannelMap, size_t channelMapCap);
-ma_result ma_sound_get_cursor_in_pcm_frames(ma_sound* pSound, ma_uint64* pCursor);
-ma_result ma_sound_get_length_in_pcm_frames(ma_sound* pSound, ma_uint64* pLength);
-ma_result ma_sound_get_cursor_in_seconds(ma_sound* pSound, float* pCursor);
-ma_result ma_sound_get_length_in_seconds(ma_sound* pSound, float* pLength);
+ma_result ma_sound_group_init(ma_engine* pEngine, ma_uint32 flags, ma_sound_group* pParentGroup, ma_sound_group* pGroup);
+ma_result ma_sound_group_init_ex(ma_engine* pEngine, const ma_sound_group_config* pConfig, ma_sound_group* pGroup);
+void ma_sound_group_uninit(ma_sound_group* pGroup);
+ma_engine* ma_sound_group_get_engine(const ma_sound_group* pGroup);
+ma_result ma_sound_group_start(ma_sound_group* pGroup);
+ma_result ma_sound_group_stop(ma_sound_group* pGroup);
+void ma_sound_group_set_volume(ma_sound_group* pGroup, float volume);
+float ma_sound_group_get_volume(const ma_sound_group* pGroup);
+void ma_sound_group_set_pan(ma_sound_group* pGroup, float pan);
+float ma_sound_group_get_pan(const ma_sound_group* pGroup);
+void ma_sound_group_set_pan_mode(ma_sound_group* pGroup, ma_pan_mode panMode);
+ma_pan_mode ma_sound_group_get_pan_mode(const ma_sound_group* pGroup);
+void ma_sound_group_set_pitch(ma_sound_group* pGroup, float pitch);
+float ma_sound_group_get_pitch(const ma_sound_group* pGroup);
+void ma_sound_group_set_spatialization_enabled(ma_sound_group* pGroup, ma_bool32 enabled);
+ma_bool32 ma_sound_group_is_spatialization_enabled(const ma_sound_group* pGroup);
+void ma_sound_group_set_pinned_listener_index(ma_sound_group* pGroup, ma_uint32 listenerIndex);
+ma_uint32 ma_sound_group_get_pinned_listener_index(const ma_sound_group* pGroup);
+ma_uint32 ma_sound_group_get_listener_index(const ma_sound_group* pGroup);
+ma_vec3f ma_sound_group_get_direction_to_listener(const ma_sound_group* pGroup);
+void ma_sound_group_set_position(ma_sound_group* pGroup, float x, float y, float z);
+ma_vec3f ma_sound_group_get_position(const ma_sound_group* pGroup);
+void ma_sound_group_set_direction(ma_sound_group* pGroup, float x, float y, float z);
+ma_vec3f ma_sound_group_get_direction(const ma_sound_group* pGroup);
+void ma_sound_group_set_velocity(ma_sound_group* pGroup, float x, float y, float z);
+ma_vec3f ma_sound_group_get_velocity(const ma_sound_group* pGroup);
+void ma_sound_group_set_attenuation_model(ma_sound_group* pGroup, ma_attenuation_model attenuationModel);
+ma_attenuation_model ma_sound_group_get_attenuation_model(const ma_sound_group* pGroup);
+void ma_sound_group_set_positioning(ma_sound_group* pGroup, ma_positioning positioning);
+ma_positioning ma_sound_group_get_positioning(const ma_sound_group* pGroup);
+void ma_sound_group_set_rolloff(ma_sound_group* pGroup, float rolloff);
+float ma_sound_group_get_rolloff(const ma_sound_group* pGroup);
+void ma_sound_group_set_min_gain(ma_sound_group* pGroup, float minGain);
+float ma_sound_group_get_min_gain(const ma_sound_group* pGroup);
+void ma_sound_group_set_max_gain(ma_sound_group* pGroup, float maxGain);
+float ma_sound_group_get_max_gain(const ma_sound_group* pGroup);
+void ma_sound_group_set_min_distance(ma_sound_group* pGroup, float minDistance);
+float ma_sound_group_get_min_distance(const ma_sound_group* pGroup);
+void ma_sound_group_set_max_distance(ma_sound_group* pGroup, float maxDistance);
+float ma_sound_group_get_max_distance(const ma_sound_group* pGroup);
+void ma_sound_group_set_cone(ma_sound_group* pGroup, float innerAngleInRadians, float outerAngleInRadians, float outerGain);
+void ma_sound_group_get_cone(const ma_sound_group* pGroup, float* pInnerAngleInRadians, float* pOuterAngleInRadians, float* pOuterGain);
+void ma_sound_group_set_doppler_factor(ma_sound_group* pGroup, float dopplerFactor);
+float ma_sound_group_get_doppler_factor(const ma_sound_group* pGroup);
+void ma_sound_group_set_directional_attenuation_factor(ma_sound_group* pGroup, float directionalAttenuationFactor);
+float ma_sound_group_get_directional_attenuation_factor(const ma_sound_group* pGroup);
+void ma_sound_group_set_fade_in_pcm_frames(ma_sound_group* pGroup, float volumeBeg, float volumeEnd, ma_uint64 fadeLengthInFrames);
+void ma_sound_group_set_fade_in_milliseconds(ma_sound_group* pGroup, float volumeBeg, float volumeEnd, ma_uint64 fadeLengthInMilliseconds);
+float ma_sound_group_get_current_fade_volume(ma_sound_group* pGroup);
+void ma_sound_group_set_start_time_in_pcm_frames(ma_sound_group* pGroup, ma_uint64 absoluteGlobalTimeInFrames);
+void ma_sound_group_set_start_time_in_milliseconds(ma_sound_group* pGroup, ma_uint64 absoluteGlobalTimeInMilliseconds);
+void ma_sound_group_set_stop_time_in_pcm_frames(ma_sound_group* pGroup, ma_uint64 absoluteGlobalTimeInFrames);
+void ma_sound_group_set_stop_time_in_milliseconds(ma_sound_group* pGroup, ma_uint64 absoluteGlobalTimeInMilliseconds);
+ma_bool32 ma_sound_group_is_playing(const ma_sound_group* pGroup);
+ma_uint64 ma_sound_group_get_time_in_pcm_frames(const ma_sound_group* pGroup);
diff --git a/src/audio/bind.bind b/src/audio/bind.bind
index c09a1ca..41fddd6 100644
--- a/src/audio/bind.bind
+++ b/src/audio/bind.bind
@@ -1,653 +1,511 @@
-int ma_sound_init_from_file_bind(lua_State *L)
+int ma_sound_group_init_bind(lua_State *L)
 {
 	ma_engine * pEngine = get: ma_engine *
-	const char * pFilePath = luaL_checkstring(L, 2);
-	ma_uint32 flags = luaL_checkinteger(L, 3);
+	ma_uint32 flags = luaL_checkinteger(L, 2);
+	ma_sound_group * pParentGroup = get: ma_sound_group *
 	ma_sound_group * pGroup = get: ma_sound_group *
-	ma_fence * pDoneFence = get: ma_fence *
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_init_from_file(pEngine, pFilePath, flags, pGroup, pDoneFence, pSound);
+	ma_result bind_result = ma_sound_group_init(pEngine, flags, pParentGroup, pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_init_from_file_w_bind(lua_State *L)
+int ma_sound_group_init_ex_bind(lua_State *L)
 {
 	ma_engine * pEngine = get: ma_engine *
-	const wchar_t * pFilePath = luaL_checkstring(L, 2);
-	ma_uint32 flags = luaL_checkinteger(L, 3);
+	const ma_sound_group_config * pConfig = get: const ma_sound_group_config *
 	ma_sound_group * pGroup = get: ma_sound_group *
-	ma_fence * pDoneFence = get: ma_fence *
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_init_from_file_w(pEngine, pFilePath, flags, pGroup, pDoneFence, pSound);
+	ma_result bind_result = ma_sound_group_init_ex(pEngine, pConfig, pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_init_copy_bind(lua_State *L)
+int ma_sound_group_uninit_bind(lua_State *L)
 {
-	ma_engine * pEngine = get: ma_engine *
-	const ma_sound * pExistingSound = get: const ma_sound *
-	ma_uint32 flags = luaL_checkinteger(L, 3);
-	ma_sound_group * pGroup = get: ma_sound_group *
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_init_copy(pEngine, pExistingSound, flags, pGroup, pSound);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_init_from_data_source_bind(lua_State *L)
-{
-	ma_engine * pEngine = get: ma_engine *
-	ma_data_source * pDataSource = get: ma_data_source *
-	ma_uint32 flags = luaL_checkinteger(L, 3);
 	ma_sound_group * pGroup = get: ma_sound_group *
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_init_from_data_source(pEngine, pDataSource, flags, pGroup, pSound);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_init_ex_bind(lua_State *L)
-{
-	ma_engine * pEngine = get: ma_engine *
-	const ma_sound_config * pConfig = get: const ma_sound_config *
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_init_ex(pEngine, pConfig, pSound);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_uninit_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	ma_sound_uninit(pSound);
+	ma_sound_group_uninit(pGroup);
 	return 0;
 }
 
 
-int ma_sound_get_engine_bind(lua_State *L)
-{
-	const ma_sound * pSound = get: const ma_sound *
-	ma_engine* bind_result = ma_sound_get_engine(pSound);
-	/* push result */
-	return /* count */;
-}
-
-
-int ma_sound_get_data_source_bind(lua_State *L)
+int ma_sound_group_get_engine_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_data_source* bind_result = ma_sound_get_data_source(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_engine* bind_result = ma_sound_group_get_engine(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_start_bind(lua_State *L)
+int ma_sound_group_start_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_start(pSound);
+	ma_sound_group * pGroup = get: ma_sound_group *
+	ma_result bind_result = ma_sound_group_start(pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_stop_bind(lua_State *L)
+int ma_sound_group_stop_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
-	ma_result bind_result = ma_sound_stop(pSound);
+	ma_sound_group * pGroup = get: ma_sound_group *
+	ma_result bind_result = ma_sound_group_stop(pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_volume_bind(lua_State *L)
+int ma_sound_group_set_volume_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float volume = luaL_checknumber(L, 2);
-	ma_sound_set_volume(pSound, volume);
+	ma_sound_group_set_volume(pGroup, volume);
 	return 0;
 }
 
 
-int ma_sound_get_volume_bind(lua_State *L)
+int ma_sound_group_get_volume_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_volume(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_volume(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_pan_bind(lua_State *L)
+int ma_sound_group_set_pan_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float pan = luaL_checknumber(L, 2);
-	ma_sound_set_pan(pSound, pan);
+	ma_sound_group_set_pan(pGroup, pan);
 	return 0;
 }
 
 
-int ma_sound_get_pan_bind(lua_State *L)
+int ma_sound_group_get_pan_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_pan(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_pan(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_pan_mode_bind(lua_State *L)
+int ma_sound_group_set_pan_mode_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_pan_mode panMode = get: ma_pan_mode
-	ma_sound_set_pan_mode(pSound, panMode);
+	ma_sound_group_set_pan_mode(pGroup, panMode);
 	return 0;
 }
 
 
-int ma_sound_get_pan_mode_bind(lua_State *L)
+int ma_sound_group_get_pan_mode_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_pan_mode bind_result = ma_sound_get_pan_mode(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_pan_mode bind_result = ma_sound_group_get_pan_mode(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_pitch_bind(lua_State *L)
+int ma_sound_group_set_pitch_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float pitch = luaL_checknumber(L, 2);
-	ma_sound_set_pitch(pSound, pitch);
+	ma_sound_group_set_pitch(pGroup, pitch);
 	return 0;
 }
 
 
-int ma_sound_get_pitch_bind(lua_State *L)
+int ma_sound_group_get_pitch_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_pitch(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_pitch(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_spatialization_enabled_bind(lua_State *L)
+int ma_sound_group_set_spatialization_enabled_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_bool32 enabled = get: ma_bool32
-	ma_sound_set_spatialization_enabled(pSound, enabled);
+	ma_sound_group_set_spatialization_enabled(pGroup, enabled);
 	return 0;
 }
 
 
-int ma_sound_is_spatialization_enabled_bind(lua_State *L)
+int ma_sound_group_is_spatialization_enabled_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_bool32 bind_result = ma_sound_is_spatialization_enabled(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_bool32 bind_result = ma_sound_group_is_spatialization_enabled(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_pinned_listener_index_bind(lua_State *L)
+int ma_sound_group_set_pinned_listener_index_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_uint32 listenerIndex = luaL_checkinteger(L, 2);
-	ma_sound_set_pinned_listener_index(pSound, listenerIndex);
+	ma_sound_group_set_pinned_listener_index(pGroup, listenerIndex);
 	return 0;
 }
 
 
-int ma_sound_get_pinned_listener_index_bind(lua_State *L)
+int ma_sound_group_get_pinned_listener_index_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_uint32 bind_result = ma_sound_get_pinned_listener_index(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_uint32 bind_result = ma_sound_group_get_pinned_listener_index(pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_get_listener_index_bind(lua_State *L)
+int ma_sound_group_get_listener_index_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_uint32 bind_result = ma_sound_get_listener_index(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_uint32 bind_result = ma_sound_group_get_listener_index(pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_get_direction_to_listener_bind(lua_State *L)
+int ma_sound_group_get_direction_to_listener_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_vec3f bind_result = ma_sound_get_direction_to_listener(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_vec3f bind_result = ma_sound_group_get_direction_to_listener(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_position_bind(lua_State *L)
+int ma_sound_group_set_position_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float x = luaL_checknumber(L, 2);
 	float y = luaL_checknumber(L, 3);
 	float z = luaL_checknumber(L, 4);
-	ma_sound_set_position(pSound, x, y, z);
+	ma_sound_group_set_position(pGroup, x, y, z);
 	return 0;
 }
 
 
-int ma_sound_get_position_bind(lua_State *L)
+int ma_sound_group_get_position_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_vec3f bind_result = ma_sound_get_position(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_vec3f bind_result = ma_sound_group_get_position(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_direction_bind(lua_State *L)
+int ma_sound_group_set_direction_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float x = luaL_checknumber(L, 2);
 	float y = luaL_checknumber(L, 3);
 	float z = luaL_checknumber(L, 4);
-	ma_sound_set_direction(pSound, x, y, z);
+	ma_sound_group_set_direction(pGroup, x, y, z);
 	return 0;
 }
 
 
-int ma_sound_get_direction_bind(lua_State *L)
+int ma_sound_group_get_direction_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_vec3f bind_result = ma_sound_get_direction(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_vec3f bind_result = ma_sound_group_get_direction(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_velocity_bind(lua_State *L)
+int ma_sound_group_set_velocity_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float x = luaL_checknumber(L, 2);
 	float y = luaL_checknumber(L, 3);
 	float z = luaL_checknumber(L, 4);
-	ma_sound_set_velocity(pSound, x, y, z);
+	ma_sound_group_set_velocity(pGroup, x, y, z);
 	return 0;
 }
 
 
-int ma_sound_get_velocity_bind(lua_State *L)
+int ma_sound_group_get_velocity_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_vec3f bind_result = ma_sound_get_velocity(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_vec3f bind_result = ma_sound_group_get_velocity(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_attenuation_model_bind(lua_State *L)
+int ma_sound_group_set_attenuation_model_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_attenuation_model attenuationModel = get: ma_attenuation_model
-	ma_sound_set_attenuation_model(pSound, attenuationModel);
+	ma_sound_group_set_attenuation_model(pGroup, attenuationModel);
 	return 0;
 }
 
 
-int ma_sound_get_attenuation_model_bind(lua_State *L)
+int ma_sound_group_get_attenuation_model_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_attenuation_model bind_result = ma_sound_get_attenuation_model(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_attenuation_model bind_result = ma_sound_group_get_attenuation_model(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_positioning_bind(lua_State *L)
+int ma_sound_group_set_positioning_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_positioning positioning = get: ma_positioning
-	ma_sound_set_positioning(pSound, positioning);
+	ma_sound_group_set_positioning(pGroup, positioning);
 	return 0;
 }
 
 
-int ma_sound_get_positioning_bind(lua_State *L)
+int ma_sound_group_get_positioning_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_positioning bind_result = ma_sound_get_positioning(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_positioning bind_result = ma_sound_group_get_positioning(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_set_rolloff_bind(lua_State *L)
+int ma_sound_group_set_rolloff_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float rolloff = luaL_checknumber(L, 2);
-	ma_sound_set_rolloff(pSound, rolloff);
+	ma_sound_group_set_rolloff(pGroup, rolloff);
 	return 0;
 }
 
 
-int ma_sound_get_rolloff_bind(lua_State *L)
+int ma_sound_group_get_rolloff_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_rolloff(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_rolloff(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_min_gain_bind(lua_State *L)
+int ma_sound_group_set_min_gain_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float minGain = luaL_checknumber(L, 2);
-	ma_sound_set_min_gain(pSound, minGain);
+	ma_sound_group_set_min_gain(pGroup, minGain);
 	return 0;
 }
 
 
-int ma_sound_get_min_gain_bind(lua_State *L)
+int ma_sound_group_get_min_gain_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_min_gain(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_min_gain(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_max_gain_bind(lua_State *L)
+int ma_sound_group_set_max_gain_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float maxGain = luaL_checknumber(L, 2);
-	ma_sound_set_max_gain(pSound, maxGain);
+	ma_sound_group_set_max_gain(pGroup, maxGain);
 	return 0;
 }
 
 
-int ma_sound_get_max_gain_bind(lua_State *L)
+int ma_sound_group_get_max_gain_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_max_gain(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_max_gain(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_min_distance_bind(lua_State *L)
+int ma_sound_group_set_min_distance_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float minDistance = luaL_checknumber(L, 2);
-	ma_sound_set_min_distance(pSound, minDistance);
+	ma_sound_group_set_min_distance(pGroup, minDistance);
 	return 0;
 }
 
 
-int ma_sound_get_min_distance_bind(lua_State *L)
+int ma_sound_group_get_min_distance_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_min_distance(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_min_distance(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_max_distance_bind(lua_State *L)
+int ma_sound_group_set_max_distance_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float maxDistance = luaL_checknumber(L, 2);
-	ma_sound_set_max_distance(pSound, maxDistance);
+	ma_sound_group_set_max_distance(pGroup, maxDistance);
 	return 0;
 }
 
 
-int ma_sound_get_max_distance_bind(lua_State *L)
+int ma_sound_group_get_max_distance_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_max_distance(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_max_distance(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_cone_bind(lua_State *L)
+int ma_sound_group_set_cone_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float innerAngleInRadians = luaL_checknumber(L, 2);
 	float outerAngleInRadians = luaL_checknumber(L, 3);
 	float outerGain = luaL_checknumber(L, 4);
-	ma_sound_set_cone(pSound, innerAngleInRadians, outerAngleInRadians, outerGain);
+	ma_sound_group_set_cone(pGroup, innerAngleInRadians, outerAngleInRadians, outerGain);
 	return 0;
 }
 
 
-int ma_sound_get_cone_bind(lua_State *L)
+int ma_sound_group_get_cone_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
+	const ma_sound_group * pGroup = get: const ma_sound_group *
 	float * pInnerAngleInRadians = get: float *
 	float * pOuterAngleInRadians = get: float *
 	float * pOuterGain = get: float *
-	ma_sound_get_cone(pSound, pInnerAngleInRadians, pOuterAngleInRadians, pOuterGain);
+	ma_sound_group_get_cone(pGroup, pInnerAngleInRadians, pOuterAngleInRadians, pOuterGain);
 	return 0;
 }
 
 
-int ma_sound_set_doppler_factor_bind(lua_State *L)
+int ma_sound_group_set_doppler_factor_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float dopplerFactor = luaL_checknumber(L, 2);
-	ma_sound_set_doppler_factor(pSound, dopplerFactor);
+	ma_sound_group_set_doppler_factor(pGroup, dopplerFactor);
 	return 0;
 }
 
 
-int ma_sound_get_doppler_factor_bind(lua_State *L)
+int ma_sound_group_get_doppler_factor_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_doppler_factor(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_doppler_factor(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_directional_attenuation_factor_bind(lua_State *L)
+int ma_sound_group_set_directional_attenuation_factor_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float directionalAttenuationFactor = luaL_checknumber(L, 2);
-	ma_sound_set_directional_attenuation_factor(pSound, directionalAttenuationFactor);
+	ma_sound_group_set_directional_attenuation_factor(pGroup, directionalAttenuationFactor);
 	return 0;
 }
 
 
-int ma_sound_get_directional_attenuation_factor_bind(lua_State *L)
+int ma_sound_group_get_directional_attenuation_factor_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	float bind_result = ma_sound_get_directional_attenuation_factor(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	float bind_result = ma_sound_group_get_directional_attenuation_factor(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_fade_in_pcm_frames_bind(lua_State *L)
+int ma_sound_group_set_fade_in_pcm_frames_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float volumeBeg = luaL_checknumber(L, 2);
 	float volumeEnd = luaL_checknumber(L, 3);
 	ma_uint64 fadeLengthInFrames = luaL_checkinteger(L, 4);
-	ma_sound_set_fade_in_pcm_frames(pSound, volumeBeg, volumeEnd, fadeLengthInFrames);
+	ma_sound_group_set_fade_in_pcm_frames(pGroup, volumeBeg, volumeEnd, fadeLengthInFrames);
 	return 0;
 }
 
 
-int ma_sound_set_fade_in_milliseconds_bind(lua_State *L)
+int ma_sound_group_set_fade_in_milliseconds_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	float volumeBeg = luaL_checknumber(L, 2);
 	float volumeEnd = luaL_checknumber(L, 3);
 	ma_uint64 fadeLengthInMilliseconds = luaL_checkinteger(L, 4);
-	ma_sound_set_fade_in_milliseconds(pSound, volumeBeg, volumeEnd, fadeLengthInMilliseconds);
+	ma_sound_group_set_fade_in_milliseconds(pGroup, volumeBeg, volumeEnd, fadeLengthInMilliseconds);
 	return 0;
 }
 
 
-int ma_sound_get_current_fade_volume_bind(lua_State *L)
+int ma_sound_group_get_current_fade_volume_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
-	float bind_result = ma_sound_get_current_fade_volume(pSound);
+	ma_sound_group * pGroup = get: ma_sound_group *
+	float bind_result = ma_sound_group_get_current_fade_volume(pGroup);
 	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int ma_sound_set_start_time_in_pcm_frames_bind(lua_State *L)
+int ma_sound_group_set_start_time_in_pcm_frames_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_uint64 absoluteGlobalTimeInFrames = luaL_checkinteger(L, 2);
-	ma_sound_set_start_time_in_pcm_frames(pSound, absoluteGlobalTimeInFrames);
+	ma_sound_group_set_start_time_in_pcm_frames(pGroup, absoluteGlobalTimeInFrames);
 	return 0;
 }
 
 
-int ma_sound_set_start_time_in_milliseconds_bind(lua_State *L)
+int ma_sound_group_set_start_time_in_milliseconds_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_uint64 absoluteGlobalTimeInMilliseconds = luaL_checkinteger(L, 2);
-	ma_sound_set_start_time_in_milliseconds(pSound, absoluteGlobalTimeInMilliseconds);
+	ma_sound_group_set_start_time_in_milliseconds(pGroup, absoluteGlobalTimeInMilliseconds);
 	return 0;
 }
 
 
-int ma_sound_set_stop_time_in_pcm_frames_bind(lua_State *L)
+int ma_sound_group_set_stop_time_in_pcm_frames_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_uint64 absoluteGlobalTimeInFrames = luaL_checkinteger(L, 2);
-	ma_sound_set_stop_time_in_pcm_frames(pSound, absoluteGlobalTimeInFrames);
+	ma_sound_group_set_stop_time_in_pcm_frames(pGroup, absoluteGlobalTimeInFrames);
 	return 0;
 }
 
 
-int ma_sound_set_stop_time_in_milliseconds_bind(lua_State *L)
+int ma_sound_group_set_stop_time_in_milliseconds_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
+	ma_sound_group * pGroup = get: ma_sound_group *
 	ma_uint64 absoluteGlobalTimeInMilliseconds = luaL_checkinteger(L, 2);
-	ma_sound_set_stop_time_in_milliseconds(pSound, absoluteGlobalTimeInMilliseconds);
+	ma_sound_group_set_stop_time_in_milliseconds(pGroup, absoluteGlobalTimeInMilliseconds);
 	return 0;
 }
 
 
-int ma_sound_is_playing_bind(lua_State *L)
+int ma_sound_group_is_playing_bind(lua_State *L)
 {
-	const ma_sound * pSound = get: const ma_sound *
-	ma_bool32 bind_result = ma_sound_is_playing(pSound);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_bool32 bind_result = ma_sound_group_is_playing(pGroup);
 	/* push result */
 	return /* count */;
 }
 
 
-int ma_sound_get_time_in_pcm_frames_bind(lua_State *L)
-{
-	const ma_sound * pSound = get: const ma_sound *
-	ma_uint64 bind_result = ma_sound_get_time_in_pcm_frames(pSound);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_set_looping_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	ma_bool32 isLooping = get: ma_bool32
-	ma_sound_set_looping(pSound, isLooping);
-	return 0;
-}
-
-
-int ma_sound_is_looping_bind(lua_State *L)
-{
-	const ma_sound * pSound = get: const ma_sound *
-	ma_bool32 bind_result = ma_sound_is_looping(pSound);
-	/* push result */
-	return /* count */;
-}
-
-
-int ma_sound_at_end_bind(lua_State *L)
-{
-	const ma_sound * pSound = get: const ma_sound *
-	ma_bool32 bind_result = ma_sound_at_end(pSound);
-	/* push result */
-	return /* count */;
-}
-
-
-int ma_sound_seek_to_pcm_frame_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	ma_uint64 frameIndex = luaL_checkinteger(L, 2);
-	ma_result bind_result = ma_sound_seek_to_pcm_frame(pSound, frameIndex);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_get_data_format_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	ma_format * pFormat = get: ma_format *
-	ma_uint32 * pChannels = get: ma_uint32 *
-	ma_uint32 * pSampleRate = get: ma_uint32 *
-	ma_channel * pChannelMap = get: ma_channel *
-	size_t channelMapCap = get: size_t
-	ma_result bind_result = ma_sound_get_data_format(pSound, pFormat, pChannels, pSampleRate, pChannelMap, channelMapCap);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_get_cursor_in_pcm_frames_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	ma_uint64 * pCursor = get: ma_uint64 *
-	ma_result bind_result = ma_sound_get_cursor_in_pcm_frames(pSound, pCursor);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_get_length_in_pcm_frames_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	ma_uint64 * pLength = get: ma_uint64 *
-	ma_result bind_result = ma_sound_get_length_in_pcm_frames(pSound, pLength);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_get_cursor_in_seconds_bind(lua_State *L)
-{
-	ma_sound * pSound = get: ma_sound *
-	float * pCursor = get: float *
-	ma_result bind_result = ma_sound_get_cursor_in_seconds(pSound, pCursor);
-	lua_pushinteger(L, bind_result);
-	return 1;
-}
-
-
-int ma_sound_get_length_in_seconds_bind(lua_State *L)
+int ma_sound_group_get_time_in_pcm_frames_bind(lua_State *L)
 {
-	ma_sound * pSound = get: ma_sound *
-	float * pLength = get: float *
-	ma_result bind_result = ma_sound_get_length_in_seconds(pSound, pLength);
+	const ma_sound_group * pGroup = get: const ma_sound_group *
+	ma_uint64 bind_result = ma_sound_group_get_time_in_pcm_frames(pGroup);
 	lua_pushinteger(L, bind_result);
 	return 1;
 }
diff --git a/src/audio/engine.c b/src/audio/engine.c
index 4d2caba..ec43728 100644
--- a/src/audio/engine.c
+++ b/src/audio/engine.c
@@ -29,6 +29,8 @@ int ma_engine_init_bind(lua_State *L)
 	lua_pushinteger(L, result);
 	lua_pushvalue(L, engine_index);
 	lua_remove(L, engine_index);
+	luaL_getmetatable(L, ma_engine_tname);
+	lua_setmetatable(L, -2);
 	return 2;
 }
 
@@ -41,15 +43,6 @@ int ma_engine_uninit_bind(lua_State *L)
 }
 
 
-int ma_engine_get_endpoint_bind(lua_State *L)
-{
-	ma_engine * pEngine = luaL_checkudata(L, 1, ma_engine_tname);
-	ma_node* bind_result = ma_engine_get_endpoint(pEngine);
-	ma_push_node(L, bind_result);
-	return 1;
-}
-
-
 int ma_engine_get_time_bind(lua_State *L)
 {
 	ma_engine * pEngine = luaL_checkudata(L, 1, ma_engine_tname);
diff --git a/src/audio/sound_group.c b/src/audio/sound_group.c
new file mode 100644
index 0000000..c52b3be
--- /dev/null
+++ b/src/audio/sound_group.c
@@ -0,0 +1,522 @@
+#include <lua.h>
+#include <lauxlib.h>
+#include <miniaudio.h>
+#include "audio.h"
+
+
+ma_sound_group * to_sound_group(lua_State *L, int index)
+{
+	if (lua_isnil(L, index)) {
+		return NULL;
+	}
+	return luaL_checkudata(L, index, ma_sound_group_tname);
+}
+
+
+int ma_sound_group_init_bind(lua_State *L)
+{
+	ma_engine * pEngine = luaL_checkudata(L, 1, ma_engine_tname);
+	ma_uint32 flags = luaL_checkinteger(L, 2);
+	ma_sound_group * pParentGroup = to_sound_group(L, 3);
+	ma_sound_group * pGroup = lua_newuserdata(L, sizeof(ma_sound_group));
+	int gindex = lua_gettop(L);
+	ma_result bind_result = ma_sound_group_init(pEngine, flags, pParentGroup, pGroup);
+	lua_pushinteger(L, bind_result);
+	lua_pushvalue(L, gindex);
+	lua_remove(L, gindex);
+	luaL_getmetatable(L, ma_sound_group_tname);
+	lua_setmetatable(L, -2);
+	return 2;
+}
+
+
+int ma_sound_group_uninit_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_sound_group_uninit(pGroup);
+	return 0;
+}
+
+
+int ma_sound_group_start_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_result bind_result = ma_sound_group_start(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_stop_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_result bind_result = ma_sound_group_stop(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_volume_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float volume = luaL_checknumber(L, 2);
+	ma_sound_group_set_volume(pGroup, volume);
+	return 0;
+}
+
+
+int ma_sound_group_get_volume_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_volume(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_pan_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float pan = luaL_checknumber(L, 2);
+	ma_sound_group_set_pan(pGroup, pan);
+	return 0;
+}
+
+
+int ma_sound_group_get_pan_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_pan(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_pan_mode_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_pan_mode panMode = luaL_checkinteger(L, 2);
+	ma_sound_group_set_pan_mode(pGroup, panMode);
+	return 0;
+}
+
+
+int ma_sound_group_get_pan_mode_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_pan_mode bind_result = ma_sound_group_get_pan_mode(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_pitch_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float pitch = luaL_checknumber(L, 2);
+	ma_sound_group_set_pitch(pGroup, pitch);
+	return 0;
+}
+
+
+int ma_sound_group_get_pitch_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_pitch(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_spatialization_enabled_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_bool32 enabled = lua_toboolean(L, 2);
+	ma_sound_group_set_spatialization_enabled(pGroup, enabled);
+	return 0;
+}
+
+
+int ma_sound_group_is_spatialization_enabled_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_bool32 bind_result = ma_sound_group_is_spatialization_enabled(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_pinned_listener_index_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint32 listenerIndex = luaL_checkinteger(L, 2);
+	ma_sound_group_set_pinned_listener_index(pGroup, listenerIndex);
+	return 0;
+}
+
+
+int ma_sound_group_get_pinned_listener_index_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint32 bind_result = ma_sound_group_get_pinned_listener_index(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_get_listener_index_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint32 bind_result = ma_sound_group_get_listener_index(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_get_direction_to_listener_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_vec3f bind_result = ma_sound_group_get_direction_to_listener(pGroup);
+	lua_pushnumber(L, bind_result.x);
+	lua_pushnumber(L, bind_result.y);
+	lua_pushnumber(L, bind_result.z);
+	return 3;
+}
+
+
+int ma_sound_group_set_position_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float x = luaL_checknumber(L, 2);
+	float y = luaL_checknumber(L, 3);
+	float z = luaL_checknumber(L, 4);
+	ma_sound_group_set_position(pGroup, x, y, z);
+	return 0;
+}
+
+
+int ma_sound_group_get_position_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_vec3f bind_result = ma_sound_group_get_position(pGroup);
+	lua_pushnumber(L, bind_result.x);
+	lua_pushnumber(L, bind_result.y);
+	lua_pushnumber(L, bind_result.z);
+	return 3;
+}
+
+
+int ma_sound_group_set_direction_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float x = luaL_checknumber(L, 2);
+	float y = luaL_checknumber(L, 3);
+	float z = luaL_checknumber(L, 4);
+	ma_sound_group_set_direction(pGroup, x, y, z);
+	return 0;
+}
+
+
+int ma_sound_group_get_direction_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_vec3f bind_result = ma_sound_group_get_direction(pGroup);
+	lua_pushnumber(L, bind_result.x);
+	lua_pushnumber(L, bind_result.y);
+	lua_pushnumber(L, bind_result.z);
+	return 3;
+}
+
+
+int ma_sound_group_set_velocity_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float x = luaL_checknumber(L, 2);
+	float y = luaL_checknumber(L, 3);
+	float z = luaL_checknumber(L, 4);
+	ma_sound_group_set_velocity(pGroup, x, y, z);
+	return 0;
+}
+
+
+int ma_sound_group_get_velocity_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_vec3f bind_result = ma_sound_group_get_velocity(pGroup);
+	lua_pushnumber(L, bind_result.x);
+	lua_pushnumber(L, bind_result.y);
+	lua_pushnumber(L, bind_result.z);
+	return 3;
+}
+
+
+int ma_sound_group_set_attenuation_model_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_attenuation_model attenuationModel = luaL_checkinteger(L, 2);
+	ma_sound_group_set_attenuation_model(pGroup, attenuationModel);
+	return 0;
+}
+
+
+int ma_sound_group_get_attenuation_model_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_attenuation_model bind_result = ma_sound_group_get_attenuation_model(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_positioning_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_positioning positioning = luaL_checkinteger(L, 2);
+	ma_sound_group_set_positioning(pGroup, positioning);
+	return 0;
+}
+
+
+int ma_sound_group_get_positioning_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_positioning bind_result = ma_sound_group_get_positioning(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_rolloff_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float rolloff = luaL_checknumber(L, 2);
+	ma_sound_group_set_rolloff(pGroup, rolloff);
+	return 0;
+}
+
+
+int ma_sound_group_get_rolloff_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_rolloff(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_min_gain_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float minGain = luaL_checknumber(L, 2);
+	ma_sound_group_set_min_gain(pGroup, minGain);
+	return 0;
+}
+
+
+int ma_sound_group_get_min_gain_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_min_gain(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_max_gain_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float maxGain = luaL_checknumber(L, 2);
+	ma_sound_group_set_max_gain(pGroup, maxGain);
+	return 0;
+}
+
+
+int ma_sound_group_get_max_gain_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_max_gain(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_min_distance_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float minDistance = luaL_checknumber(L, 2);
+	ma_sound_group_set_min_distance(pGroup, minDistance);
+	return 0;
+}
+
+
+int ma_sound_group_get_min_distance_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_min_distance(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_max_distance_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float maxDistance = luaL_checknumber(L, 2);
+	ma_sound_group_set_max_distance(pGroup, maxDistance);
+	return 0;
+}
+
+
+int ma_sound_group_get_max_distance_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_max_distance(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_cone_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float innerAngleInRadians = luaL_checknumber(L, 2);
+	float outerAngleInRadians = luaL_checknumber(L, 3);
+	float outerGain = luaL_checknumber(L, 4);
+	ma_sound_group_set_cone(pGroup, innerAngleInRadians, outerAngleInRadians, outerGain);
+	return 0;
+}
+
+
+int ma_sound_group_get_cone_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float InnerAngleInRadians, OuterAngleInRadians, OuterGain;
+	ma_sound_group_get_cone(pGroup, &InnerAngleInRadians, &OuterAngleInRadians, &OuterGain);
+	lua_pushnumber(L, InnerAngleInRadians);
+	lua_pushnumber(L, OuterAngleInRadians);
+	lua_pushnumber(L, OuterGain);
+	return 3;
+}
+
+
+int ma_sound_group_set_doppler_factor_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float dopplerFactor = luaL_checknumber(L, 2);
+	ma_sound_group_set_doppler_factor(pGroup, dopplerFactor);
+	return 0;
+}
+
+
+int ma_sound_group_get_doppler_factor_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_doppler_factor(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_directional_attenuation_factor_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float directionalAttenuationFactor = luaL_checknumber(L, 2);
+	ma_sound_group_set_directional_attenuation_factor(pGroup, directionalAttenuationFactor);
+	return 0;
+}
+
+
+int ma_sound_group_get_directional_attenuation_factor_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_directional_attenuation_factor(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_fade_in_pcm_frames_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float volumeBeg = luaL_checknumber(L, 2);
+	float volumeEnd = luaL_checknumber(L, 3);
+	ma_uint64 fadeLengthInFrames = luaL_checkinteger(L, 4);
+	ma_sound_group_set_fade_in_pcm_frames(pGroup, volumeBeg, volumeEnd, fadeLengthInFrames);
+	return 0;
+}
+
+
+int ma_sound_group_set_fade_in_milliseconds_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float volumeBeg = luaL_checknumber(L, 2);
+	float volumeEnd = luaL_checknumber(L, 3);
+	ma_uint64 fadeLengthInMilliseconds = luaL_checkinteger(L, 4);
+	ma_sound_group_set_fade_in_milliseconds(pGroup, volumeBeg, volumeEnd, fadeLengthInMilliseconds);
+	return 0;
+}
+
+
+int ma_sound_group_get_current_fade_volume_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	float bind_result = ma_sound_group_get_current_fade_volume(pGroup);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_set_start_time_in_pcm_frames_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint64 absoluteGlobalTimeInFrames = luaL_checkinteger(L, 2);
+	ma_sound_group_set_start_time_in_pcm_frames(pGroup, absoluteGlobalTimeInFrames);
+	return 0;
+}
+
+
+int ma_sound_group_set_start_time_in_milliseconds_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint64 absoluteGlobalTimeInMilliseconds = luaL_checkinteger(L, 2);
+	ma_sound_group_set_start_time_in_milliseconds(pGroup, absoluteGlobalTimeInMilliseconds);
+	return 0;
+}
+
+
+int ma_sound_group_set_stop_time_in_pcm_frames_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint64 absoluteGlobalTimeInFrames = luaL_checkinteger(L, 2);
+	ma_sound_group_set_stop_time_in_pcm_frames(pGroup, absoluteGlobalTimeInFrames);
+	return 0;
+}
+
+
+int ma_sound_group_set_stop_time_in_milliseconds_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint64 absoluteGlobalTimeInMilliseconds = luaL_checkinteger(L, 2);
+	ma_sound_group_set_stop_time_in_milliseconds(pGroup, absoluteGlobalTimeInMilliseconds);
+	return 0;
+}
+
+
+int ma_sound_group_is_playing_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_bool32 bind_result = ma_sound_group_is_playing(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+
+int ma_sound_group_get_time_in_pcm_frames_bind(lua_State *L)
+{
+	ma_sound_group * pGroup = luaL_checkudata(L, 1, ma_sound_group_tname);
+	ma_uint64 bind_result = ma_sound_group_get_time_in_pcm_frames(pGroup);
+	lua_pushinteger(L, bind_result);
+	return 1;
+}
+
+