24 Jan
2004
24 Jan
'04
1:23 p.m.
Greetings:
FWIW I recently tried recording the audio from a Flash animation at
joecartoon.com. No joy, I couldn't do it. If I armed the record channel
the audio failed from the animation and would not start again until I
disarmed the channel and restarted the Flash show. Audio was fine and
available for everything else during all this, it just wasn't available
from the Flash stuff.
Best regards,
++ dp
Ed wrote:
Hi LAU,
OK, after 4 hours on this and enough Googling to break my keyboard, I
have to admit defeat.
What I Want To Do:
1. Load a web page containing a Flash Film
2. Play the Flash Film
3. Record any sound the Flash Film delivers to a WAV file.
4. Maybe post-process the WAV into Ogg, MP3, etc.
What I Have (Hardware + Software):
1. SB Audigy
2. Alsa kernel drivers, 1.0.0 RC2
3. Alsa libs, 1.0.0 RC2
4. Jack, compiled with the above Alsa libs
5. Ecasound, compiled with the Alsa libs and Jack
What works:
1. Sound from CD, System beeps, etc. works
What doesn't work:
1. Alsa: arecord -f cd -o test.wav, when playing an Ogg file, e.g.
2. Ecasound: ecasound -i:alsahw,0 -o test.wav, when playing an Ogg
file, e.g.
Am I missing something fundamental here? I can't imagine that this is
an especially arcane wish, simply wanting to record and play at the
same time, yet I can't find anything on this which helps. I have
played with alsamixer for about an hour, but I simply get silence all
the time. All the 'capture' devices are things like Mic, CD, Line-In,
etc., which is, obviously, NOT what I want. I simply want to record
what I am currently hearing -- although I'm testing this with playback
of Ogg, actually I clearly want to record the sound from the Flash
Film mentioned.
I have read the various docs for Alsa, Ecasound and Jack, but I have
to admit that sound on Linux is *very* confusing. I am not really sure
whether I'm supposed to be using /dev/dsp, alsahw, or some other
arcane terminologies -- kernel compilation is easy in comparison! I'm
not getting any errors, by the way, everything *seems* to work, but
when I stop playback and check the output, all I hear is dead air.
I can (joyfully!) send the output of amixer if that would help, hope
to get a reply on this one soon. In Windows, this is a 5-minute
no-brainer. Install Total Recorder, and that's that. I can't imagine
that it must be so complex in Linux? First time I've really hit a wall
in Linux -- which clearly shows that sound is something which needs to
be clarified a *LOT* in Linux. (Having alsamixer start with everything
mute is a good example of this!)
Thanks a million if anyone can help: otherwise I'm rebooting into
Windows for now, since there's no other way of doing this at the moment.
Ed