It has SPI, no i2s, so that makes the traditional DAC shield impossible. But, USB is cool. You can use the cheepie Cmedia dongles if you want http://www.amazon.com/Sabrent-External-Adapter-Windows-AU-MMSA/dp/B00IRVQ0F8/ref=sr_1_1?ie=UTF8&qid=1462838915&sr=8-1&keywords=usb+audio+interface <http://www.amazon.com/Sabrent-External-Adapter-Windows-AU-MMSA/dp/B00IRVQ0F8/ref=sr_1_1?ie=UTF8&qid=1462838915&sr=8-1&keywords=usb+audio+interface> or a higher quality thing like this http://www.ebay.com/itm/231620915394?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT <http://www.ebay.com/itm/231620915394?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT> I2C is not really suitable for audio. In theory, you could bitbang i2s over GPIO, but you’d be in the weeds in not only building a driver, but probably having timing issues, too.
Peter > On May 9, 2016, at 5:05 PM, Christof Ressi <[email protected]> wrote: > > :-o Wow, I'll immediately buy one of these, no matter if it's the right thing > for my project. Just wanna try it out. > > Let's say I use a CHIP for my project: I'd hook up an external ADC and DAC > chip (CHIP has only mono input and stereo output), write some code to > interface with the hardware and let libPd do the DSP stuff. Now, what would > be the best way to interface with ADC/DAC chips? I noticed that CHIP doesn't > have SPI. Would I2C be fast enough? I aim for 44.1 kHz/16 bit, but I can also > do with less... > > Thanks! > > Christof > > Gesendet: Dienstag, 10. Mai 2016 um 00:39 Uhr > Von: "Peter Nyboer" <[email protected]> > An: [email protected] > Betreff: Re: [PD] LibPd on microcontroller > > > > Content-Type: text/plain; charset=UTF-8 > > Hi, thanks for your answer! I'll definitely have a look at heavy and compare > the results with some bits of my own DSP code. > How do you plan to output audio > from it? It has SPI that could get you to connect to some DACs but > nothing of top quality audio. One can also use PWM to simulate analog > out. > I actually thought of connecting ADCs and DACs via SPI, I don't need top > audio quality, I'm rather looking for cheap effect/sound boxes :-). On the > other hand, the ESP8266 also an I2S interface (dedicated to audio). I've seen > videos of people streaming and playing mp3 files with it! > > Once I've done my tests (probably not before July), I'll tell my results. > Not sure how cheap is cheap, but the CHIP from Next Thing Co is $9 + shipping > http://getchip.com and has audio, wifi, and bt built-in. I’ve been running PD > on it. There’s still some issues with duplex audio in PD, but there is vast > potential for audio fun on this thing. > disclosure: I work for NTC > P > _______________________________________________ [email protected] mailing > list UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list[https://lists.puredata.info/listinfo/pd-list]
_______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
