[Spice-devel] Sound problems

[Klaus Hochlehnert]

Ok, I did some more tests and got it working now.
Instead of using Intel HDA device I switched to AC97 and installed the latest Realtek AC97 driver.
I also tested celt vs. opus, but with Intel HDA devices the clicking is present with both codecs.

Now no more clicking with AC97, sound is running very well now.

Thanks, Klaus

-----Original Message-----
From: Christophe Fergeau [mailto:cfergeau at redhat.com] 
Sent: Monday, November 17, 2014 12:09 PM
To: Klaus Hochlehnert
Cc: spice-devel at lists.freedesktop.org
Subject: Re: [Spice-devel] Sound problems

On Sat, Nov 15, 2014 at 07:27:30PM +0000, Klaus Hochlehnert wrote:
> Hi,
> 
> I just played around with some spice options as I have sound problems with a Windows 7 guest.
> It's a bit choppy and I hear a regular click (sort of) every 1-2 seconds.
> 
> Video performance is ok although I can't watch Full-HD videos smoothly, but the max size of the video is ok.
> 
> So I tested some option combinations like streaming-video, image-compression, playback-compression, ...
> But I haven't found a combination that works.
> 
> As device I added intel-hda and hda-micro.
> I use qemu 2.1.1 & spice 0.12.5 compiled with celt and opus.
> 
> I was wondering how I can switch between the codecs to hear if one is working better than the other?
> How can I even see which codec is used (currently I don't see and qemu/virt-viewer option)?

Codec selection is automatic, with Opus being favoured over celt if both spice-server/QEMU and spice-gtk support it. If you want to test with celt, you can recompile spice-gtk without Opus support and with celt support.

Christophe