AudioCapture/dev.piotrprus.audiocapture/VoiceProcessing

VoiceProcessing

data class VoiceProcessing(val echoCancel: Boolean = true, val noiseSuppress: Boolean = true, val autoGain: Boolean = false, val applyOnIos: Boolean = true, val iosDucking: IosDucking = IosDucking.Default)(source)

Platform echo cancellation, noise suppression and gain control, applied before you get the audio.

Android: AcousticEchoCanceler, NoiseSuppressor and AutomaticGainControl, each only where the device provides it.
iOS: any of the three switches on voice processing on the input node, which always does echo cancellation and noise suppression together; autoGain only toggles its gain control. The result sounds like a phone call. Needs IosSessionCategory.PlayAndRecord.

For a lighter touch on Android without this class, try AndroidAudioSource.VoiceCommunication.

Constructors

VoiceProcessing

constructor(echoCancel: Boolean = true, noiseSuppress: Boolean = true, autoGain: Boolean = false, applyOnIos: Boolean = true, iosDucking: IosDucking = IosDucking.Default)

Properties

applyOnIos

val applyOnIos: Boolean

Apply on iOS at all. Turn off to keep the Android effects while leaving iOS audio untouched, since Apple's processing changes the voice so much.

autoGain

val autoGain: Boolean

echoCancel

val echoCancel: Boolean

iosDucking

val iosDucking: IosDucking

How much iOS lowers other apps' audio while voice processing runs (iOS 17+).

noiseSuppress

val noiseSuppress: Boolean