On Thursday 13 March 2003 08:24 am, gabor wrote: > i can't manage to find the necessary volume controls in alsamixer. ... > but which volume controls should i use in alsa?
I'm using the alsa drivers with sblive. Yeah, the relationships between the
different sliders in alsamixer is pretty incomprehensible.
I have the digital FPS2000 5-point surround speakers and headphones plugged
into line out (front). Inside the case I have the digital sp-dif cable
connecting my DVD drive audio out to the sblive and an analog cd-audio cable
connecting my CDRW to the sblive.
These are the sliders I think I understand:
The volume slider in XMMS is tied to "PCM".
When playing pcm audio, ie, mp3s:
Master
affects only headphone volume
PCM
affects only headphone volume
Wave Surround
controls rear channel volume, or rather, signal strength
the hardware front/rear volume bias determines the actual volume
In other words, the only way to adjust the real speaker volume that I've found
is the hardware volume knob. (At least in my setup.) Granted I haven't fooled
with 90% of the volume sliders alsamixer is aware of.
When playing CD-audio:
In alsamixer hit m on "CD" to toggle mute. Audio appears to come out of the
headphones only. The software volume of KsCD doesn't appear tied to any of
the alsamixer sliders, though it does actually modulate the volume. I haven't
figure out how to get the speakers to play this audio.
When playing DVD audio:
Don't think I had to do anything special, other than change the device KsCD
thought was the cdrom. Audio comes out of both headphones and speakers, but
only the front speakers, which makes sense I guess. The KsCD volume control
affects the speaker volume.
I've attached my asound.state file in case it's useful. I'd back up your
current state before installing mine (use the alsactl command to do both).
I'm sure it's possible to get it working better than I have, but I don't want
to spend the time to do it, and what I typically do works well enough.
Evan
asound.state.gz
Description: GNU Zip compressed data
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