Enumeration Case

kAudioUnitSubType_VoiceProcessingIO

An audio unit that interfaces to the audio inputs and outputs of iOS devices and provides voice processing features.

Declaration

kAudioUnitSubType_VoiceProcessingIO = 'vpio'

Discussion

Bus 0 provides output to hardware and bus 1 accepts input from hardware. See the Voice-Processing I/O Audio Unit Properties for the identifiers for this audio unit’s properties.