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

[Pierre Massat]

Hi Hans,

Thanks for your reply. I can't use writesf~ alone because i want to save
some disk space, wav is too big.
Is there a way i can run Pd, and then pipe its output to another program to
record it whenever I want? I don't want Pd to continuously write to a file
because i'm running it for hours.

Cheers,

Pierre.

2012/11/25 Hans-Christoph Steiner <hans at at.or.at>

>
> [writesf~]
>
> .hc
>
> On 11/25/2012 05:03 AM, Pierre Massat wrote:
> > 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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