Today, I found it is not working. Maybe still the second patch is needed.

Thanks! It works. ...Any I only patched the first one, when patching the second one after successfully patched the first one, it showed me some errors, as listed below: $ patch -p1 < RFC-audio-proper-support-for-float-samples-in-mixeng.diff patching file qapi/audio.json patching file audio/audio_int...

Hello,

Mine MacOS 9.2.2 inside qemu-screamer on Catalina of my MacPro 2013 machine do show me the sound device via the Sound Control Panel > Output, but only very loud and crackling sound. Is that 'normal' for now? Is there any solution?