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macos - How to use …
https://stackoverflow.com/questions/10792469/how-to-use-kaudiounitsubtype-voiceprocessingio-subtype-of-core-audio-api-in-ma
I'm finding an example of simple play-thru application using built-in mic/speaker with kAudioUnitSubType_VoiceProcessingIO subtype(not kAudioUnitSubType_HALOutput) in macosx. The comments on the core audio api says that kAudioUnitSubType_VoiceProcessingIO is available on the desktop and with iPhone 3.0 or greater, so I think that there must be an …
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/kaudiounitsubtype_voiceprocessingio
var kAudioUnitSubType_VoiceProcessingIO: UInt32 { get} 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.
Apple's Voice Processing Audio Unit ( …
https://stackoverflow.com/questions/12821404/apples-voice-processing-audio-unit-kaudiounitsubtype-voiceprocessingio-brok
I originally wrote the audio code using the Audio Unit API, with a kAudioUnitSubtype_RemoteIO unit. This worked well, but unsurprisingly echo was a problem. I tried to use the built-in echo-suppression by switching to using a kAudioUnitSubType_VoiceProcessingIO unit.
Resample input of kAudioUnitSubType_VoiceProcessingIO
https://developer.apple.com/forums/thread/675316
I would like to resample input hardware samples to the sample rate required by my app's codec settings while using kAudioUnitSubType_VoiceProcessingIO. I have some questions if is it possible to do this without instantiating the separate converter unit since according to the docs IO unit has its own converters.
iOS音频(2)——Audio Unit - 简书
https://www.jianshu.com/p/9f033d08accb
kAudioUnitSubType_AUiPodEQ: 混音: kAudioUnitType_Mixer: kAudioUnitSubType_AU3DMixerEmbedded kAudioUnitSubType_MultiChannelMixer多路 混音: 输入输出: kAudioUnitType_Output: kAudioUnitSubType_RemoteIO远端kAudioUnitSubType_VoiceProcessingIO kAudioUnitSubType_GenericOutput: 格式转换: …
Using VoiceProcessingIO for echo cancellation on macOS ...
https://gist.github.com/konstantinpavlikhin/d08f98b14328baa5eddbdf98d0ab8b91
Using VoiceProcessingIO for echo cancellation on macOS. Raw. XXXSpeakerDevice.m. OSStatus MyOutputRenderCallback ( void * inRefCon, AudioUnitRenderActionFlags* ioActionFlags, const AudioTimeStamp* inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList* ioData) {. // Not being called at all. } @implementation XXXSpeakerDevice.
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