virtualbox.org

I have some audio issue when I use Windows 10 host and run the Linux Guest (Ubuntu 16.04) on Virtualbox 5.0.26 and Virtualbox 5.1.2 (5.1.4).

I have test the the audio emulation settings, AC97 and IntelHD
1. Audio input and output are both workable, but the guest OS crash (freeze, and one thing I can do is force interrupt by the window close button [X] ) sometimes when I use pyaudio to start record audio. Not every time but randomly happen.

2. Audio output is workable but the audio input is not, when I test by Ubuntu audio setting, I can not see any sound pressure when I make noise.

If anyone can help me, I will appreciate of your help.

I don't know about the output, but for the input there is a bug report available: #15802: [Regression] No microphone, Windows Guest, Linux Host. Contribute your experience, with logs, in the ticket.

I'm having the same issue after virtualbox update. I'm using Arch Linux and virtualbox guest utils and Windows 10 as Host. If I put Intel HD works, but the sound come oddly like an echo or a little delay (if you are watching an youtube video). In my case if I change back to AC97 works normal with a little delay, and if I reboot again, stop to working.