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Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound p
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect |
Date: |
Wed, 28 Oct 2015 10:58:56 +0000 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Mon, Oct 26, 2015 at 01:24:00PM +0100, Gerd Hoffmann wrote:
> > So this change would make real-time audio feel laggy.
>
> That is secondary if the sound quality is bad due to constant overruns
> and underruns ...
This is like sweeping network performance problems under the rug by
increasing queue size.
Before bumping the buffer size and breaking real-time applications (i.e.
128-512 samples per buffer), there should be a little performance
investigation to understand the root cause.
Why are overruns/underruns occurring?
Is the problem the host sound API, QEMU's audio/mixing infrastructure,
or guest responsiveness?
Stefan
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- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Stefan Hajnoczi, 2015/10/16
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Programmingkid, 2015/10/16
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Peter Maydell, 2015/10/16
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Stefan Hajnoczi, 2015/10/26
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Gerd Hoffmann, 2015/10/26
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Programmingkid, 2015/10/26
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect,
Stefan Hajnoczi <=
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Gerd Hoffmann, 2015/10/28
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Programmingkid, 2015/10/28
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Stefan Hajnoczi, 2015/10/29
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Programmingkid, 2015/10/29
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Gerd Hoffmann, 2015/10/30
- Re: [Qemu-devel] [PATCH] hw/usb/dev-audio.c: make USB audio card sound perfect, Programmingkid, 2015/10/26