26 Jul
2003
26 Jul
'03
3:23 a.m.
hello!
I'm finishing up installing Alsa drivers on my Red Hat 9 partition.
RH 9 recognized my VIA82C sound card. But I decided to switch to Alsa
drivers. I downloaded last release (9.5).
After installing alsa drivers there was a noise after a sound was
played. On the sound server setup I selected:
Use custom sampling rate: 48000
and:
Other custom options:
-a oss
After compiling the drivers, be sure to run snddevices. If you miss it,
then amixer and alsamixer will not run.
Then, I compiled and installed the alsa-libs and then alsa-utils.
I run alsamixer several times to change PCM and Master controls to
different levels to test aplay /usr/share/sound/startup3.wav. Aplay
played sounds at volumn levels controlled by alsamixer.
So, I think you missed to run snddevices under the alsa-drivers directory.
I hope this will help you.
The same Alsa drivers are running very well on my RHat 8.0 partition.
GZS
fpirrone wrote:
Mark Knecht wrote:
--
This Message is sent from my Red Hat 9.0 Linux server
Machine Registration number 205692 at http://counter.li.org/
.-. Gustavo Zamorano S.
.-. | Registered Linux user number 320898
.-. | | at http://counter.li.org/
No responses here also?????
> -----Original Message-----
> From: linux-audio-user-admin(a)music.columbia.edu
> [mailto:linux-audio-user-admin@music.columbia.edu]On Behalf Of Mark
> Knecht
> Sent: Friday, July 25, 2003 7:42 AM
> To: Linux-Audio-User
> Subject: [linux-audio-user] aplay, plughw, alsamixer question
>
>
> Hi,
> Hi. I asked this question on Alsa-Dev yesterday, but 17 hours later
> got
> no answers. Excuse me to those that subscribe to both lists.
>
> This info is to help me do more debug work on a new HDSP 9652 driver
> version that I am helping to test.
>
> Should the volume levels I hear when using the command
>
> aplay -Dplughw:0 -r 44100 data/wave/seque~10.wav
>
> be controlled by alsamixer?
>
> The volumes for alsaplayer are being controlled by alsamixer, but
> this aplay
> command is not, at least right now on a new driver I'm using.
>
> Also, on a multichannel card, how do I direct the above aplay
> command to
> a specific channel? I am finding that with this new driver the audio is
> appearing on ALL channels on the card, even for a mono wave file. I
> think
> this is a bug, but I'm not sure.
>
> If there's an explanation fit for a simpleton like me about the
> difference between plughw and hw and when to use one vs. the other,
> please
> point me there so I can learn. I have read a bit on the Alsa site about
> plughw talking directly to the kernel, but beyond that I have not
> discovered
> any documentation yet.
>
> Thanks in advance.
>
> Cheers,
> Mark
>
Mark,
I don't have any experiences with your hardware and didn't think my
reply would be of much use to you, but running the exact command you
post on my cs4236 system produces sound that is under control of
alsamixer, as does -Dhw:0, so that suggests to me that aplay is directly
affected by the settings in the mixer.
Now, some cards do not have a mixer so they should not behave this way,
as I assume would be the case if there were something wrong with the
driver for a card that does have a mixer. In either event I would not
expect to see controls in amixer or the gamix graphical interface. If
you see them and they have no effect that sounds like a malfunction.
Couldn't find any answer to your channel question. My system does not
seem to provide a relevant option to explore this further. I fooled
around with -c and -I options but could draw no useful conclusions.
Frank