## [Essentials](Functions-(Essentials))

!> `FAudioGMS_Init()` and `FAudioGMS_Destroy()` are absolutely essential to FAudio playback. You should run `FAudioGMS_Init()` at the start of your game (usually on boot) and `FAudioGMS_Update()` should be run once every frame, usually in the Step event of a persistent instance.

- [`FAudioGMS_Init(spatialDistanceScale, timestep)`](Functions-(Essentials)?id=faudiogms_initspatialdistancescale-timestep)
- [`FAudioGMS_Update()`](Functions-(Essentials)?id=faudiogms_update)
- [`FAudioGMS_Destroy()`](Functions-(Essentials)?id=faudiogms_destroy)

 

## [Loading Sound Assets](Functions-(Loading-Sound-Assets))

- `FAudioGMS_StaticSound_LoadWAV(filePath)`
- `FAudioGMS_StaticSound_CreateSoundInstance(staticSoundID)`
- `FAudioGMS_StaticSound_Destroy(staticSoundID)`
- `FAudioGMS_StreamingSound_LoadOGG(filepath)`

 

## [Sound Instances](Functions-(Sound-Instances))

- `FAudioGMS_SoundInstance_Play(soundInstanceID, loop)`
- `FAudioGMS_SoundInstance_Pause(soundInstanceID)`
- `FAudioGMS_SoundInstance_Stop(soundInstanceID)`
- `FAudioGMS_SoundInstance_SetPan(soundInstanceID, pan)`
- `FAudioGMS_SoundInstance_SetPitch(soundInstanceID, pitch)`
- `FAudioGMS_SoundInstance_SetVolume(soundInstanceID, volume)`
- `FAudioGMS_SoundInstance_Set3DPosition(soundInstanceID, x, y, z)`
- `FAudioGMS_SoundInstance_Set3DVelocity(soundInstanceID, xVelocity, yVelocity, zVelocity)`
- `FAudioGMS_SoundInstance_SetTrackPositionInSeconds(soundInstanceID, trackPositionInSeconds)`
- `FAudioGMS_SoundInstance_SetVolumeOverTime(soundInstanceID, volume, milliseconds)`
- `FAudioGMS_SoundInstance_SetLowPassFilter(soundInstanceID, lowPassFilter, Q)`
- `FAudioGMS_SoundInstance_SetHighPassFilter(soundInstanceID, highPassFilter, Q)`
- `FAudioGMS_SoundInstance_SetBandPassFilter(soundInstanceID, bandPassFilter, Q)`
- `FAudioGMS_SoundInstance_GetPitch(soundInstanceID)`
- `FAudioGMS_SoundInstance_GetVolume(soundInstanceID)`
- `FAudioGMS_SoundInstance_GetTrackLengthInSeconds(soundInstanceID)`
- `FAudioGMS_SoundInstance_GetTrackPositionInSeconds(soundInstanceID)`
- `FAudioGMS_SoundInstance_Destroy(soundInstanceID)`
- `FAudioGMS_SoundInstance_DestroyWhenFinished(soundInstanceID)`

 

## [Effect Chains](Functions-(Effect-Chains))

- `FAudioGMS_EffectChain_Create()`
- `FAudioGMS_EffectChain_AddDefaultReverb(effectChainID)`
- `FAudioGMS_EffectChain_AddReverb(...)`
- `FAudioGMS_EffectChain_Destroy(effectChainID)`
- `FAudioGMS_SoundInstance_SetEffectChain(soundInstanceID, effectChainID, effectGain)`
- `FAudioGMS_SoundInstance_SetEffectGain(soundInstanceID, effectGain)`
- `FAudioGMS_SetMasteringEffectChain(effectChainID, effectGain)`
- `FAudioGMS_SetMasteringEffectGain(effectGain)`

 

## [Global Properties](Functions-(Global-Properties))

- `FAudioGMS_SetListenerPosition(x, y, z)`
- `FAudioGMS_SetListenerVelocity(xVelocity, yVelocity, zVelocity)`
- `FAudioGMS_PauseAll()`
- `FAudioGMS_ResumeAll()`
- `FAudioGMS_StopAll`