Hi,
I'm new to AVAudioEngine(and macOS programming in general).
I'm trying to mix microphone audio with ScreenCaptureKit audio using AVAudioEngine without playing it back. I've created a AVAudioPlayerNode and scheduling buffers in my SCStream handler:
playerNode.scheduleBuffer(samples)
and have connected the playerNode to the mainMixerNode.
audioEngine.connect(audioEngine.inputNode, to: audioEngine.mainMixerNode, format: micFormat)
audioEngine.connect(playerNode, to: audioEngine.mainMixerNode, format: format)
The problem is that mainMixerNode plays the audio to the speaker creating a feedback loop. How can I prevent the mixer output from being played back.
Also: Is this the best way of mixing microphone input with some other input? I ran into AVAudioEngine's manual rendering mode, which seems like the way to go for mixing audio without playing it back. However, I couldn't figure out how to connect microphone input to the AVAudioEngine in manual rendering mode?