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

[Hans-Christoph Steiner]

[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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