Hi Bill, Sergei,
Thanks to all of your help, my server is now handling sound. The alsamixer
program was indicating that capture was not enabled on the input path needed
for my system. Once this was fixed, I can now record sound using arecord,
which was my project plan.
Thanks again for all of your help!
Dave
From: Bill Unruh <unruh@xxxxxxxxxxxxxx>
To: david feldman <wb0gaz@xxxxxxxxxxx>
CC: alsa-user@xxxxxxxxxxxxxxxxxxxxx, steshenko_sergei@xxxxxxx
Subject: Re: Beginner question - getting started with ALSA on a
Fedora Core 6
Date: Mon, 8 Jan 2007 16:22:52 -0800 (PST)
On Mon, 8 Jan 2007, david feldman wrote:
Much progress!
...
Good.
Now the commands aplay, arecord, and so on appear to function.
arecord -d 5 >file.wav produces a file, however, the file plays back as
silence.
YOu forgot to run alsamixer first and make sure that the
volume controls were non-zero. Alsa defaults to all volume sliders at 0,
which means no sound. That is so that y ou do not destroy your expensive
speakers or ears as the volume blasts on.
Use aplay first to make sure you can play sounds. There are loads of .wav
files on your system you can try.
I think my remaining problem is around setting amixer properly.
I looked at amixer trying to figure out how to enable input from the
microphone jack of the sound device (on this machine, it's routed to a
connector on the front panel with a microphone icon, and when I plug a
sound
source in, I can hear the sound on the machine's internal speaker.) This
is
going to take more reading, because there are so many individual
parameters...
No just run alsamixer and start playing around. Note that you want to look
at both the capture and play pages of alsamixer.
Thanks,
Dave
From: Bill Unruh <unruh@xxxxxxxxxxxxxx>
To: david feldman <wb0gaz@xxxxxxxxxxx>
CC: alsa-user@xxxxxxxxxxxxxxxxxxxxx, steshenko_sergei@xxxxxxx
Subject: Re: Beginner question - getting started with ALSA on
a
Fedora Core 6
Date: Mon, 8 Jan 2007 15:31:55 -0800 (PST)
On Mon, 8 Jan 2007, david feldman wrote:
Thanks Bill and Sergei!
Here is the new information:
lsmod|grep snd
What does this list?
Empty - no module with "snd" in it!
OK, that means that you have no sound card driver loaded. It is not
surprising then that you have no sound.
If what is below is your /etc/modprobe.conf, then just do modprobe
snd-card-0
Now, do lsmod|grep snd again. If still nothing shows up do
dmesg|tail -20
and look for error messages from the attempt to load the sound card
driver.
Maybe you do not have a CS4236 sound card?
If you now have snd- modules loaded, try alsamixer to turn on the volume
(it is always off by default) and then use aplay and arecord.
ls /proc/asound
asound does not exist in /proc.
###
Here is /etc/modprobe.conf.
The first three entires are due to my existing hardware, two Ethernet
and
one SCSI port.
I do not understand the last line "remove snd-cs4236.....":
alias eth0 8139too
alias eth1 e100
alias scsi_hostadapter aic7xxx
alias snd-card-0 snd-cs4236
options snd-card-0 index=0
options snd-cs4236 index=0
remove snd-cs4236 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; };
/sbin/modprobe -r --ignore-remove snd-cs4236
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