I had originally crashed in on Camm's thread (http://forum.arduino.cc/index.php?topic=176822.0
) as he has a similar
inquiry but I think I might be biting off more than I can chew and didn't want to drag him down with me
I am a beginner when it comes to the programming side of it but an avid tinkerer. Lately, I have been trying to wrap my head around some drum sequencer ideas along the lines of the classic 80's machines.
I've checked out a few audio shields online and bought a couple to play with. I have the Adafruit Wave Shield
and the Rugged Circuits Rugged Audio Shield
. The Wave Shield is cool but simple and I have yet to realize the full potential of the Rugged one; still tinkering with it. The Nootropic Audio Hacker
looks great too, might pick one up.
I've also had a look at that fantastic Due-based Groovuino
) - it's opening my eyes to some possibilities with audio and sequencing - very cool.
I'm hoping maybe someone here can provide a little insight for me?... Is it possible to run an 8 channel drum machine with 12-bit 20-something-khz samples being looped (and tuned - vol, pitch, filter, etc.) simultaneously based on a tapped-in drum sequence with just a single Arduino (like the Due)? Along the lines of an Emu SP-1200 or a rompler? I know you can get away with much more if you run the audio at 8-bit but I'm aiming for decent, old school drum machine quality.
I was thinking I could have channels 1-6 as dedicated drum sound channels, each one would hold a single kick, snare, etc. maybe being run off their own Arduino, which would maybe 'master' to a second Arduino with the Rugged Audio Shield
running channels 7/8 as the 'sampling channels'. Or something to that effect...
Ideally it would be great to have all 8 channels
store drum hits and have the ability to have short (1-2 sec.) recorded samples assigned to each as an option; then you could choose between the dedicated sounds or the sampled one on each channel. This is probably pushing it though short of running several audio-shielded Arduinos to handle each channel instance...
I'm betting it's possible to achieve this
using multiple Arduinos and being a little
inefficient (maybe that's ok to start with?) but would love to get some perspective on how to be as efficient as possible, getting this all under one board (Due?) with maybe some external help via a shield or some extra ram or storage maybe. If this is even possible...
Any help or insight is greatly appreciated.