From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:50220) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TAIfk-0007Md-H9 for qemu-devel@nongnu.org; Sat, 08 Sep 2012 06:53:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TAIfi-0007Q5-JR for qemu-devel@nongnu.org; Sat, 08 Sep 2012 06:53:56 -0400 Received: from mout.web.de ([212.227.17.11]:60552) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TAIfi-0007O2-9S for qemu-devel@nongnu.org; Sat, 08 Sep 2012 06:53:54 -0400 Message-ID: <504B23BB.2080407@web.de> Date: Sat, 08 Sep 2012 12:53:47 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <504A1C35.5070809@lotspeich.org> In-Reply-To: <504A1C35.5070809@lotspeich.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigCB2A11939D78E92AED91562A" Subject: Re: [Qemu-devel] Linux KVM, Windows 7 guest choppy sound List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Erik Lotspeich Cc: qemu-devel@nongnu.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigCB2A11939D78E92AED91562A Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2012-09-07 18:09, Erik Lotspeich wrote: > Hi, >=20 > I apologize if this isn't the right venue for this message, but this > mailing list seems a bit more active than qemu-discuss. >=20 > Background: > I am running OpenSUSE 12.1. I fixed audio issues in VM guests by settin= g > the following in qemu.conf: >=20 > vnc_allow_host_audio =3D 1 >=20 > I also set user=3D and group=3D to allow qemu-kvm to run as the same us= er as > I am logged in as. This allowed qemu-kvm to send audio to pulseaudio. >=20 > My issue: > I am using the ICH6 virtual audio driver in my VMs. In my Linux VMs, th= e > sound works perfectly without any issues. In my Windows 7 VM, the sound= > works with the exception of static and choppiness in the audio. Has > anyone else seen this or have any ideas for a fix? Known issue, likely unfixable in QEMU due to hard-coded constraints of the driver Windows uses (too small playback buffers). I gave up on hda, I'm happily using a passed-through USB headset now. Another known-to-work alternative is PCI passthrough of the host sound hardware. However, both approaches are no option when the host is out of reach. What seems to work better - but is lacking input support - is usb-audio. Maybe worth a try when you don't need a microphone. Jan --------------enigCB2A11939D78E92AED91562A Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlBLI78ACgkQitSsb3rl5xSylACfVfIaWZK5K+1h8I71SaB/t5JB WJ4AoI0eZcQiXAYOvf3WDHrnZoR3tyXr =JI2q -----END PGP SIGNATURE----- --------------enigCB2A11939D78E92AED91562A--