I just had one of these given to me and I was (am) hopeful that it will
actually be an improvement over the motherboard audio I was using. It did
improve some things in particular the old setup would interact with my
graphics card and make noises based on things that happened on the display.
The Revo does not do this. I was also never able to get the digital outs
working on my old setup and this mostly works with the Revo (pass through 5.1
and stereo are working nicely). The sound I am getting out of it is very
high quality and if I could solve the microphone level problem I would be a
happy camper.
I have not been able to get a microphone to work in an acceptable manor
since the gain on the mic is way too low to be useable and I have not found a
way to allow for the gain level to be changed. At first I though that
perhaps the mic connection was not providing power (+5V) to the mic. But I
tested with two self powered mics (IE. mics with a battery) and it did not
make any difference. I found some threads about this in the archives for
this list but these were apparently for an earlier version of alsa and the
information about how to configure this did not match what I was seeing in
alsamixer. For example, the threads here talked about using the DAC and DAC
1 devices as part of the microphone setup. These devices do not show up when
I run alsamixer with the version of the drivers I have.
TeamSpeak does not seem to be able to find the mic at all. What OSS device
would this be since /dev/dsp does not appear to work (it does exist however)?
Mumble does find the mic since it is alsa based and it's audio setup wizard
shows that the device it is using works other than not having enough gain.
Shouting as loud as I can with the mic located so that it is almost touching
my lips results in the bar going about 30% over into the green area in the
volume tuning part of the wizard. It should cover at least 95% of the the
green during these loud peaks.
Using alsamixer has been very frustrating with this sound card since the names
of the "devices" are all hardware level and there is NO documentation to help
figure out how to configure these to do useful (and required) things like
having a working microphone. Or getting sourround sound working in anything
other than passthrough mode. It also appears that what devices show up in
alsamixer depends on what version of the driver is installed and that this
has invalidated what little information I was able to find that was based on
how people got this working on older versions of the driver. The only
control that shows up in alsamixer when I select the Capture view is Multi
Track Peak which is read only. I can not find a way to set a capture
device or change any setting related to the capture device.
I am using kernel 2.6.22 with the default kernal module. It appears that this
is alsa version 1.0.14. I also tried it without kernal modules using the
alsa-driver. This did not affect how it worked. I used alsa-driver 1.0.14.
Should I be using something else with this card? Do I need some additional
utilities to configure this card?
Thanks in advance for your assistance.
Hal
PS:
I have the following .asoundrc :
pcm.!default {
type plug
slave.pcm "dmixer"
}
pcm.spdifdmix {
type dmix
ipc_key 1024
slave {
pcm "hw:0,1"
format S32_LE
period_time 0
period_size 1024
buffer_size 8192
}
bindings {
0 0
1 1
}
}
# default ALSA route for software support of multiple sound streams
pcm.!default {
type plug
slave.pcm spdifdmix
}
# Ogle
pcm.!spdif {
type plug
slave.pcm "hw:0,1"
}
# mplayer -ac hwac3
pcm.!iec958 {
type plug
slave.pcm "hw:0,1"
}
ctl.dmixer {
type hw
card 0
device 1
}
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