hi, nice! one question: On 18 Mar 2014, at 12:02, Winfried Ritsch <[email protected]> wrote:
> Am Donnerstag, 13. März 2014, 16:01:20 schrieb Rafael Vega: >> Anyone wants to share their experience with the BeagleBoneBlack? >> > Yes. > > 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: > > system: > + 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 does this mean, we get a “sound” i.e adc~ in from the internal ad’s? > > sound: > > + 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 > devices. > > This dev's should also work for Cubie-boards, Wand-boards, UDOO and other arm > based boards. > > mfg > winfried > > PS: Maybe we can start an own thread on this. > > > >> On Thu, Mar 13, 2014 at 3:11 PM, Brian Fay <[email protected]> wrote: >>> 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 latency >>> 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 on >>> major distros like Raspbian. >>> >>> I'm using the Satellite CCRMA distro right now with much better success. >>> So far I've got various delays, a looper, and a waveshaper distortion >>> running within the same patch, at <20ms latency with very few noticeable >>> dropouts. Parameters are adjustable with a QuNeo MIDI controller and with >>> a >>> button attached to the GPIO pins. >>> >>> The Pi is a bit more affordable than the UDOO boards, but then again I had >>> to buy a powered USB hub. Ultimately for one audio input the Raspberry Pi >>> could probably serve most purposes, while the UDOO is more likely to scale >>> to bigger installations. >>> >>> _______________________________________________ >>> [email protected] mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list > > -- > --- > Ritsch, Winfried, Ao.Univ.Prof. Dipl.-Ing. > Institut 17 Elektronische Musik und Akustik > 8010 Graz, Inffeldgasse 10/III > E-Mail [email protected] > Homepage http://iem.at/ritsch > Mobil ++436642439369 > --- > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list
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