[PD-ot] Record PCM output - ALSA - Rapsberry Pi

[Pierre Massat]

Or is there a way to directly pipe Pd's audio output into another program?
Too bad JAC doesn't work on the Pi...


2012/11/24 Pierre Massat <pimassat at gmail.com>

> Hi,
>
> I 've been searching the internet for two days and i couldn't find any
> satisfying answer, so I thought I'd ask here...
> I'm running PD on my Raspberry Pi, and I need to record Pd's output. I
> can't use the standard writesf~ because I lack disk space, and oggwrite~
> doesn't work well on the RPi (it records fine but Pd's output is trashed).
>
> I recently discovered that i could record something in raw with ALSA using
> arecord, and pipe this into oggenc, or flac, or whatever I need to record
> the file. Something like:
> arecord <parameters> raw | oggenc <parameter> file.ogg
>
> The thing is that the RPi has no capture device (the single PCM doesn't
> seem to be capable of capture).
>
> A lot of things seem to be possible using a .asoundrc configuration file
> for ALSA, but I don't know how to use it.
> What I would want is to copy the PCM output so that ALSA can recognize
> this copy as an input in a record. Note that I need to be able to listen to
> the output while recording.
>
> Do you thing this is possible at all?
>
> Cheers,
>
> Pierre.
>
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