[pulseaudio-discuss] Fwd: pulseaudio cannot recognise ALSA plughw

kaworu fw kaworufw at gmail.com
Tue Dec 16 07:55:17 PST 2008

Further I do hear noise coming out when I run the following command as you
suggested in http://www.pulseaudio.org/ticket/355

That's mean ALSA is able to convert S32 to packed S24.

aplay -D plug:hw:1 -f S32_LE -r 48000 -c 2 < /dev/urandom

---------- Forwarded message ----------
From: kaworu fw <kaworufw at gmail.com>
Date: Tue, Dec 16, 2008 at 11:44 PM
Subject: Re: [pulseaudio-discuss] pulseaudio cannot recognise ALSA plughw
To: General PulseAudio Discussion <pulseaudio-discuss at mail.0pointer.de>

Hi Lennart,

Thanks. I'll try.

On the other hand I suppose my sound card (EMU 0404 USB) only supports 24bit
with MMAP interleaved.... Do you think it is the cause of the problem?
However the same setup works fine when I was using Fedora 9.... but it
doesn't work in Fedora 10 now.  I also tried tsched=0 but no luck as well.


On Thu, Dec 11, 2008 at 2:31 AM, Lennart Poettering
<lennart at poettering.net>wrote:

> On Wed, 10.12.08 22:22, kaworu fw (kaworufw at gmail.com) wrote:
> > Hi Lennart,
> >
> > Thanks for your suggestion.  However passing mmap=0 to module-alsa-sink
> > doesn't bring me any luck to make it work.
> >
> > I will report this to ALSA people.  On the other hand how can I get more
> > information from PA to pass to the ALSA people?
> Hmm, it might be good idea to use ltrace to list the ALSA calls made.
> Lennart
> --
> Lennart Poettering                        Red Hat, Inc.
> lennart [at] poettering [dot] net         ICQ# 11060553
> http://0pointer.net/lennart/           GnuPG 0x1A015CC4
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