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Old 06-21-2006, 07:34 PM   #1
SoreMeatGrinder
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Registered: Oct 2004
Distribution: Mandrake LE 2005
Posts: 9

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Sound Input/output error


My system is a Mandrake/Mandriva Limited Edition 2005. I am trying to record audio on my computer using the onboard sound chip. My motherboard is the P4S800-MX see: http://www.asus.com/products4.aspx?l...77&modelmenu=1

When I try to record sound through streamer i get:
Code:
$ streamer -t 0:10 -o movie.avi -r 25 -f mjpeg -s 720x576 -F stereo
avi / video: MJPEG (AVI) / audio: 16bit stereo (LE)
oss: read: Input/output error0], a/v: -0.00s [0]
When I try to read from the device directly I get another, similar error:
Code:
$ cat /dev/dsp
cat: /dev/dsp: Input/output error
But a write to the device produces some wiered crackling:
Code:
# cat /var/log/syslog > /dev/dsp
According to the specifications the chip is from realtek: Audio - Realtek ALC 655, 6-channel CODEC - S/PDIF out interface

But my lspci says it is from SiS:
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound Controller (rev a0)

This could be the problem.


Any pointers or help will be greatly appreciated, thank you.
 
Old 06-22-2006, 06:29 PM   #2
SoreMeatGrinder
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Registered: Oct 2004
Distribution: Mandrake LE 2005
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In windows the sound card is listed as Realtek AC'97

Went to the Realtek site and installed their sound pack - still no luck.

Any help please??

This is my current modprobe.conf:

alias char-major-116 snd
options snd major=116 cards_limit=1
alias sound-slot-0 snd-intel8x0
options snd-intel8x0 index=0 id="ICH"
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

Last edited by SoreMeatGrinder; 06-22-2006 at 07:03 PM.
 
Old 06-23-2006, 03:02 AM   #3
SoreMeatGrinder
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Registered: Oct 2004
Distribution: Mandrake LE 2005
Posts: 9

Original Poster
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Got it solved, audio is very distorted so I'll try and find a fix for that. At the moment my modprobe.conf file (The relevent entries) reads:
Code:
alias char-major-116 snd
options snd major=116 cards_limit=1
alias sound-slot-0 snd-intel8x0
options snd-intel8x0 index=0 id="ICH"
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
You MAY also need to install the driver pack from Realtek. Try the above first, the drivers should be standard in the alsa libaries.
 
Old 06-23-2006, 03:24 AM   #4
SoreMeatGrinder
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Registered: Oct 2004
Distribution: Mandrake LE 2005
Posts: 9

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Turns out I had the volume on the capture interface up all the way, turning it down removed the distortion,

Oops.
 
  


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