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Old 01-12-2003, 04:09 AM   #1
ugge
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Sudden change in volume control behavior


I have Red Hat 7.1 and yesterday I ran update agent to update my system. Everything went alright but I noticed a change in the behavior in my volume control.

Prior to update 50% on the master control ment 50% output volume. In other words it felt linear.

After update the volume has a logarithmic feel, 50% output is in the uppermost part of the volume control. This makes the volume control less useable since most of the space on the lever leaves almost no output at all.

Any idea why? Can it be a change in sound card drivers?
 
Old 01-12-2003, 04:16 AM   #2
mcleodnine
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volume on what part of the mixer? master or pcm?
 
Old 01-14-2003, 04:10 AM   #3
ugge
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Master volume, pcm seems more linear.
Yesterday I tried to install ALSA-drivers, but didn't get the settings correct.
The esd didn't start when logging in to Gnome, also two warnings apeared. Something like "can't access /dev/mixer".

Part of my /etc/modules.conf
alias char-major-195 nvidia
alias sound-slot-0 emu10k1
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null 2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 2>&1 || :

also there seem to be a high pitch distorsion sound when playing sound through pcm, wav/mp3. CD plays withour distorsion.
 
Old 01-14-2003, 05:07 AM   #4
ugge
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I tried to use this configuration stolen from another web-page.
# ALSA portion
alias char-major-116 snd
options snd snd_major=116 snd_cards_limit=1
alias snd-card-0 snd-card-emu10k1
options snd-card-emu10k1 snd_dac_frame_size=128 snd_adc_frame_size=64
# OSS/Free portion
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss

It seems to work, acceppt for that the computer thinks it's a cirruslogic card when I know it is a Creative soundblaster live.
 
Old 01-14-2003, 07:27 AM   #5
mcleodnine
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suse tells me that my sb_live mixer is a tritech. and i only have the one vol control (had two last year). but it works for now. did yours at least give you contol over both outputs?
 
Old 01-15-2003, 03:14 AM   #6
ugge
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I checked it out in more detail using alsamixer.
Alsamixer told me:
Card: Soundblaster Live!
Chip: Cirrus Logic CS4297A rev B

I now hav control of both master and pcm volumes, even though it sometimes get distorted. And when I'm swapping desktops or opening a window the sound get's heavily distorted.

I also found this wiki-wiki page about Sound Blaster Live!
http://alsa.opensrc.org/index.php?page=emu10k1

Last edited by ugge; 01-15-2003 at 03:18 AM.
 
Old 01-15-2003, 04:31 AM   #7
KhzX
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Ugge..
i had that problem with swapping windows
minimizing and restoring them
by the way this happened with XMMS
what i had to do was go into preferences
and in outpug plug in
i picked OSS Driver 1.2.7 [libOSS.so]

and it fixed it..
i hope this was helpful
 
Old 01-16-2003, 02:30 AM   #8
ugge
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Thanx KhzX,

this seems to have fixed the problem with distortion when changing desktops.
 
Old 01-16-2003, 08:48 AM   #9
KhzX
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glad i could help
 
  


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