Subject: Re: [linux-audio-user] Recording Internet Stream, Duplex, Help!?
From: Dave Phillips (dlphilp_AT_bright.net)
Date: Sat Jan 24 2004 - 19:40:10 EET
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
>
>
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