3 Jan
2005
3 Jan
'05
8:11 p.m.
Hi,
as promised, I've updated the third video that was really
ugly ;-) .
Well, the native speakers have to deal with my bad english
until they do the videos themselves.
Dave, you're right, watching the video by myself I have to
admit that it is a horrible krautish-english, but I cannot
throw away my roots. Or should I have used something like
embrola ;-) ?
There are now three files online (at least until sourceforge
will complain about bandwidth [ab]usage):
http://sysexxer.sf.net/files/LinuxAudioBasics.avi
http://sysexxer.sf.net/files/BasicMIDIconnectivity.avi
http://sysexxer.sf.net/files/JackConnectivity.avi
Meanwhile, the files are also linked on
http://sysexxer.sf.net
for your convenience.
Best regards
ce
3 Jan
3 Jan
9:03 p.m.
New subject: [linux-audio-user] Disabling Playthrough
I'm a newbie to audio on Linux. So far things are working OK, but I
can't figure out for the life of me how to disable audio playthrough.
I'm running SUSE 9.2 w/KDE on a Dell Inspiron 600m. No applications
are running, but somebody is echoing line in to line out. I've looked
through KDE, YaST, and ALSA controls for audio but I can't find a
setting for playthrough. Google searches have failed me... any advice
appreciated.
thanks,
darren
9:46 p.m.
New subject: [linux-audio-user] Disabling Playthrough
I'm a newbie to audio on Linux. So far things are
working
OK, but I can't figure out for the life of me how to
disable audio playthrough. I'm running SUSE 9.2 w/KDE on a
Dell Inspiron 600m. No applications are running, but
somebody is echoing line in to line out. I've looked
through KDE, YaST, and ALSA controls for audio but I can't
find a setting for playthrough. Google searches have
failed me... any advice appreciated.
Well, playthrough can bei two things:
* The soundcard's input gets immediately visible on it's
output, without going through your computer. Everything is
done in the soundcard. Try a mixer application to enable this
* You want to take the input signal, work on it maybe with
jack-rach and put the changed signal out again. Try jack
according to the videos, or any other application which can
alter and output the incoming material.
Let us know what you try to do so we can certainly can give
some hints how to reach the desired results.
Best regards
ce
4 Jan
4 Jan
2:15 p.m.
New subject: [linux-audio-user] Disabling Playthrough
Well my problem is that playthrough has been enabled, and I don't want
it to be (or I should say, I want to have control over it). I can't
figure out where to turn this off/on. All of the obvious system
control panels don't seem to have a setting for this. Using command
line tools for ALSA, I don't see anything either. I wouldn't expect it
to be turned on by default. I have been able to record audio in
audacity, so samples are being passed up to the application. Now I
have a weird situation where audacity says that the audio i/o system is
unavailable. Playthrough is working... speaker-test works. Various
audio players are able to play CD audio and open and play sounds files.
Linux audio is a bit byzantine compared to what I'm used to... there
appear to be several interacting layers, and control panels in various
places. If anyone has suggestions or pointers to a good
linux-audio-howto or getting started that explains all of this, I'd
appreciate it.
thanks,
darren
On Jan 3, 2005, at 6:47 PM, Christoph Eckert wrote:
Well, playthrough can bei two things:
* The soundcard's input gets immediately visible on it's
output, without going through your computer. Everything is
done in the soundcard. Try a mixer application to enable this
* You want to take the input signal, work on it maybe with
jack-rach and put the changed signal out again. Try jack
according to the videos, or any other application which can
alter and output the incoming material.
Let us know what you try to do so we can certainly can give
some hints how to reach the desired results.
2:56 p.m.
New subject: [linux-audio-user] Disabling Playthrough
Linux audio is a bit byzantine compared to what
I'm used
to... there appear to be several interacting layers, and
control panels in various places.
Yep, it is, especially Audacity has an additional layer called
portaudio which makes things more complex.
If anyone has
suggestions or pointers to a good linux-audio-howto or
getting started that explains all of this, I'd appreciate
it.
Well, maybe I'm an importunate guy, but I'd like to recommend
the videos I've recently done. Especially the first one might
be useful for you:
http://sysexxer.sf.net/files/LinuxAudioBasics.avi
http://sysexxer.sf.net/files/BasicMIDIconnectivity.avi
http://sysexxer.sf.net/files/JackConnectivity.avi
If possible, have a look at the first one so you have an basic
overview.
After that, I'd be glad to help you getting the desired
results.
Best regards
ce
5 Jan
5 Jan
12:33 a.m.
New subject: [linux-audio-user] Disabling Playthrough
My confusion turned out to be with what exactly alsamixer does. I was
getting playthrough because the "Mic" device was unmuted in the mixer.
So alsa was doing the playthrough directly. I somehow had the
impression that one used alsa mixer to set the input levels of various
devices that were available to be opened by software talking to alsa.
But by experimenting with audacity, I see that with Mic muted in
alsamixer, audacity is able to get input from the Mic device via alsa.
Does this imply that ALL input devices should be muted in alsamixer
and apps are responsible for reading from the input? For example, it
seems to not matter whether I've muted the CD or not.. AlsaPlayer can
still play a CD.
On Jan 3, 2005, at 6:47 PM, Christoph Eckert wrote:
Well, playthrough can bei two things:
* The soundcard's input gets immediately visible on it's
output, without going through your computer. Everything is
done in the soundcard. Try a mixer application to enable this
* You want to take the input signal, work on it maybe with
jack-rach and put the changed signal out again. Try jack
according to the videos, or any other application which can
alter and output the incoming material.
Let us know what you try to do so we can certainly can give
some hints how to reach the desired results.
6:51 a.m.
New subject: [linux-audio-user] Disabling Playthrough
My confusion turned out to be with what exactly
alsamixer
does. I was getting playthrough because the "Mic" device
was unmuted in the mixer. So alsa was doing the playthrough
directly.
Well, because alsamixer is a tool which tries to match to all
cards supported by ALSA, it is sometimes a bit confusing.
But we do not have a better solution; ask your manufacturer to
write a GPL'ed UI-Mixer for that certain device.
I somehow had the impression that one used alsa
mixer to set the input levels of various devices that were
available to be opened by software talking to alsa.
What does various devices mean in this case?
But by
experimenting with audacity, I see that with Mic muted in
alsamixer, audacity is able to get input from the Mic
device via alsa. Does this imply that ALL input devices
should be muted in alsamixer and apps are responsible for
reading from the input? For example, it seems to not
matter whether I've muted the CD or not.. AlsaPlayer can
still play a CD.
I guess that alsaplayer reads the CD and puts it out to PCM.
The CD channel is if you have a CD inserted and you've
pressed the play button on the drive. In this case, it
behaves like a CD player. If it is connected via an extra
cable to the mainboard, the drive will output the sound
directly to the soundcard and then adjusting the CD channel
would make sense.
Best regards
ce
9:04 a.m.
New subject: [linux-audio-user] Disabling Playthrough
Last Wednesday 05 January 2005 05:33, Darren Gibbs was like:
My confusion turned out to be with what exactly
alsamixer does. I was
getting playthrough because the "Mic" device was unmuted in the mixer.
So alsa was doing the playthrough directly. I somehow had the
impression that one used alsa mixer to set the input levels of various
devices that were available to be opened by software talking to alsa.
But by experimenting with audacity, I see that with Mic muted in
alsamixer, audacity is able to get input from the Mic device via alsa.
Does this imply that ALL input devices should be muted in alsamixer
and apps are responsible for reading from the input? For example, it
seems to not matter whether I've muted the CD or not.. AlsaPlayer can
still play a CD.
Try gamix, for a start. I find it clearer than alsamixer YMMV.
The software generally needs the channel to be enabled for 'capture' to use
it. The volume levels are merely to route what you call playthrough(?).
Alsaplayer can still play a CD presumably because it's reading it digitally
and playing via alsa_pcm? Try muting the pcm channel and listen to what
happens.
cheers
tim hall
http://glastonburymusic.org.uk
3 Jan
3 Jan
9:48 p.m.
New subject: [linux-audio-user] Disabling Playthrough
And a personal wish from me: When starting a new thread,
please do not reply to an existing messge of an existing
thread but simply write a new message. thanks a lot!
Best regards
ce
4 Jan
4 Jan
3:38 a.m.
New subject: OT: list etiquette, was Re: [linux-audio-user] Disabling Playthrough
Christoph Eckert wrote:
And a personal wish from me: When starting a new
thread,
please do not reply to an existing messge of an existing
thread but simply write a new message. thanks a lot!
You mean like you did?
7085
days inactive
7087
days old
linux-audio-user@lists.linuxaudio.org
10 comments
4 participants
participants (4)
-
Darren Gibbs -
mchristoph.eckert＠t-online.de -
tim hall -
wes schreiner