Re: I think I need a sound/ALSA guru.

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Hi Alexander and Bob;

On Tue, 2005-08-02 at 11:54 -0400, fedora-list-request@xxxxxxxxxx wrote:
[snip]
> > > > > 4) Most but not all of my sound programs can't find my sound
> card.
> > > > 
> > > >Which programs are that? Do they work with ALSA or do they need
> OSS
> > > > emulation by ALSA?
> > 
> > a) Helix seems to work
> > b) as user audacity returns "There was an error intializing the
> audio
> > i/o layer.  You will not be able to play or record audio." As root
> > audacity starts without error dialogue but the sound playback is
> very
> > distorted.
> > c)Multimedia Systems Selector (Audio) i.e. gstreamer properties
> > 
> > Output ALSA alsasink clear sound
> > Artsd artsdsink no sound
> > ESD esdsink sound (tremble/faint)
> > OSS ossink failed test pipeline
> > 
> > Input ALSA alsasrc crashed/forced quit 
> > ESD esdmon no sound
> > OSS osssrc failed test pipeline
> > 
> > 
> > d) CD player - plays.  It is hard to tell whether it is distorted or
> > not. The only disk I have handy is bagpipe music.

Just a little joke.  There is no distortion now.

> >From another list posting:
> 
> <quote>
> 
> >If you sound is distorted, check the kmix setting for the IEC958
> option.
> >If it is turned on,  turn it off (mute it).
> >
> >I had distorted sound problems with FC4 with this option turned on.
> 
> Thanks Bruce, that did it. I no longer have distorted sound.
> Terrific :D
> 
> </quote>
> 
> So check that please and change the setting if you find it either in
> gnome volume manager or alsamixer in terminal and see if that changes
> the sound quality.

It does.  But I am pretty sure (it was over a month ago -- so I can't be
100% certain) I muted the IEC958.  Maybe it was through gnome volume
manager. This time I used alsamixer and it seems to have stuck.  Is it
possible the gnome volume manager is not working correctly.  Anyhow, the
distortion seems to have been corrected.  (BTW, What is IEC958??) 
> 
> > e) tvtime (see below)
> > f) General strangeness: As user I still get event sounds after I
> have
> > muted everything in
> > alsamixer - volume control.  Even stranger, if I go
> to /usr/share/sounds
> > in File Browser and just focus the cursor (i.e. don't click or
> select in
> > any way) on a *.wav
> > event file I get the sound in spite of everything being muted and
> the
> > files being owned by root (other is set to r).
> 
> Why do you think this is strange? From your description files are
> world
> readable, so the can be played even if the user does not own them.

I have never experienced sound being played just because I purposefully
or accidentally focused on a file.  I doesn't happen when I am another
user.  If its normal, I'll leave it alone.  

Don't forget I have been working on this for six weeks now, starting
from complete sound ignorance.  I have probably double thought myself
into all kinds of problems and misunderstandings.  Hearing that
something is alright can be as important as hearing it needs to be
fixed.
> 
> 
> > > > > 6) system-config-soundcard plays the test sample but has the
> worst
> > > > > distortion of all.
> See quoted advice and reply above.

Fixed -- I think. I am leery that it will get changed back.

> ... all needed sound modules are loaded. snd-ens1371 is the correct
> ALSA module.
> 
Thank you.  That is reassuring to know. 

> > amixer returns the following:
> > ~]$ amixer
> 
> > Simple mixer control 'IEC958',0
> >   Capabilities: pswitch pswitch-joined
> >   Playback channels: Mono
> >   Mono: Playback [on]
> 
> IEC958 appears to be muted.

see above  I thought it was muted.
> 
> > /etc/modprobe.conf
> > alias eth0 8139too
> > options bttv tuner=2
> 
> There should be more entries, at least for your sound setup.

What should I do about it??

Bugzilla just sent me the following:
Summary: distorted sound with es1371
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=161279
Added new HW switch to c-s-c (in rawhide) to bypass dmix.

The change seems to be only in "rawhide" -- a RedHat version.  Does this
mean anything for my sound problems?

My other problems persist. 

Regards Bill


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