cpal rust macOS 26 Tahoe CoreAudio microphone silent

[lunarianss]

[roderickvd]

Does #1124 have any effect?

[lunarianss]

cpal only returned a single default microphone "array" — but on MacBook Pro, that array has 3 channels. cpal's device enumeration and stream builder didn't gracefully handle this non-standard channel count. So I replaced cpal with direct AVAudioEngine calls via objc2 (native Objective-CFFI).

[roderickvd]

I see. Anything you could backport to cpal to have it fixed? I don’t have a MBP to test with.

[roderickvd]

Anything you could backport to cpal to have it fixed? I don’t have a MBP to test with.

Additionally, for debugging:

1. What does device.default_input_config() report for channels; 1 or 3?
2. Does calling configure_stream_format_and_buffer with channels: 3 make any difference?

[lunarianss]

Confirmed, it's not an issue with cpal. Thanks!!!!

[roderickvd]

Thanks for the feedback! Curious to know what it was?