[sdiy] Raspberry Pi 2 B Synthesizer Project Progress

[Scott Gravenhorst]

Kylee Kennedy <kmkennedy at gmail.com> wrote:
 >
 >Very cool, I was playing with PureData on the Pi 2 and Pi zero this
 >past week. Pi 2 has a bunch of power for good audio patches while I
 >found the zero better for clocks and logic patches. I just ordered the
 >Pi 3 for further testing. Is the Pi 2's audio output from a PWM source
 >or was that just the earlier Pi 1's?

I am using a Cirrus Logic - Element14 audio board.  The onboard audio is 
said to be 10 or 11 bits depending on the source.  I wanted better 
audio.  This board claims HD quality with up to 24 bits 192 ksps stereo. 
  In fact the presence of the driver for this board I believe disables 
the standard driver (not at all sure about that).  Anyway I've never 
used the Pi 2 audio stuff that's on the board.

Pi3 is interesting, faster CPU, but currently (and please correct me if 
I'm wrong) while the hardware is 64 bit, all that is available is a 32 
bit OS for it.  (32 bit compiled with a 64 bit compiler? I dunno so 
don't hold me to that either)

 >
 >I would really love to learn how to use the GPIO pins for CV control
 >and knobs, currently I'm using a Teensy for that function in MIDI
 >mode. Anyone into PureData should check out MonologX's EcoSystem and
 >Xodular. They are modular blocks he's design very similar to Max/MSP
 >Beap blocks...also they are free to download.

Dunno enough to be helpful here.

-- ScottG