I am trying to setup a kAudioUnitSubType_VoiceProcessingIO audio unit for a VoIP macOS app. I tried kAudioUnitSubType_HALOutput first, but it was not suitable due to echo and noise, which makes sense.
kAudioUnitSubType_VoiceProcessingIO seemed promising. However, when using it with a bluetooth headset for output and built-in mic for input, volume gets really low compared to other device setups such as both internal input and output, or both bluetooth headset input and output. The alternative setups seem to work fine, but we can't request users to avoid specific setups. This makes kAudioUnitSubType_VoiceProcessingIO unusable for a macOS app.
Is kAudioUnitSubType_VoiceProcessingIO production ready for current macOS apps? Is there any way to avoid the volume issues?
Adding manual gain is not a workaround because voice becomes really distorted.
Thanks.
kAudioUnitSubType_VoiceProcessingIO seemed promising. However, when using it with a bluetooth headset for output and built-in mic for input, volume gets really low compared to other device setups such as both internal input and output, or both bluetooth headset input and output. The alternative setups seem to work fine, but we can't request users to avoid specific setups. This makes kAudioUnitSubType_VoiceProcessingIO unusable for a macOS app.
Is kAudioUnitSubType_VoiceProcessingIO production ready for current macOS apps? Is there any way to avoid the volume issues?
Adding manual gain is not a workaround because voice becomes really distorted.
Thanks.