[PD] [OT] Raspberry Pi Wolfson Audio Card
pimassat at gmail.com
Tue Mar 18 12:43:40 CET 2014
I've been tried to reduce the size of my setup for a while now, hoping that
the RPi would be the solution. I'm definitely interested in your work.
2014-03-18 12:02 GMT+01:00 Winfried Ritsch <ritsch at iem.at>:
> Am Donnerstag, 13. März 2014, 16:01:20 schrieb Rafael Vega:
> > Anyone wants to share their experience with the BeagleBoneBlack?
> Since autumn, i am trying to set up an kit hardware+software with BBB for
> computer-musicians as stomp box, works quite well, after successfully
> installed it in a long term sound installation (headless):
> some points short:
> + BBB moved to Debian since this year (good)
> + USB Audio works fine und better now with kernel >= 3.12
> + Network performance works better with kernel >= 3.12
> - IO support doenst use device-tree overlays anymore on kernel > 3.8
> + an iio-backend for Jack2 to use the internal AD's
> in jack for processing sensor data in PD ;-))) but tricky
> + down to 10ms with PD and cheap 8 channel out, 2 in
> USB soundcard Logilink 7.1 (EUR 19.90)
> + 5ms with Logilink stereo USB (EUR 3,90)
> + success with audio-cape (stereo, but too expensive for the quality)
> - sound quality is normally as bad as on most notebooks, tablets and so on
> + but with a trick: filtered 5V supply for the USB-card not the USB power
> it seems to get reasonable quality
> (They have all the same chips like expensive USB cards: C-Media)
> I just made a blog on this, but it is not public only for intern usage, if
> anyone is interested in the IEM-embedded-Sound-Kit (doing some audio over
> ethernet stuff) i can make it open (after some polishing, especially the
> english) and release the PD-lib (GPIO,AD,I2C,... interfacing) for these
> This dev's should also work for Cubie-boards, Wand-boards, UDOO and other
> based boards.
> PS: Maybe we can start an own thread on this.
> > On Thu, Mar 13, 2014 at 3:11 PM, Brian Fay <ovaltinevortex at gmail.com>
> > > While I'm sure that Dan is right that the UDOO is the better choice for
> > > USB audio, I do have to say that I've had decent success using my
> > > Raspberry
> > > Pi as a guitar effects processor, with the Behringer UCG102 interface.
> > >
> > > There's definitely a lot of quirkiness to getting it running... for
> > > example ALSA gets in an infinite restart loop when attempting low
> > > on pd-extended, but vanilla starts up fine under the same settings. And
> > > then there's the fact that an issue in the kernel screws up USB audio
> > > major distros like Raspbian.
> > >
> > > I'm using the Satellite CCRMA distro right now with much better
> > > So far I've got various delays, a looper, and a waveshaper distortion
> > > running within the same patch, at <20ms latency with very few
> > > dropouts. Parameters are adjustable with a QuNeo MIDI controller and
> > > a
> > > button attached to the GPIO pins.
> > >
> > > The Pi is a bit more affordable than the UDOO boards, but then again I
> > > to buy a powered USB hub. Ultimately for one audio input the Raspberry
> > > could probably serve most purposes, while the UDOO is more likely to
> > > to bigger installations.
> > >
> > > _______________________________________________
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> Ritsch, Winfried, Ao.Univ.Prof. Dipl.-Ing.
> Institut 17 Elektronische Musik und Akustik
> 8010 Graz, Inffeldgasse 10/III
> E-Mail ritsch at iem.at
> Homepage http://iem.at/ritsch
> Mobil ++436642439369
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