ot: codec shield for arduino

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ot: codec shield for arduino

Post by guest »

slightly off topic
but i figured there would be people here
who might find this useful
i designed a high quality audio shield for the arduino a while back

http://www.openmusiclabs.com/projects/codec-shield/

it does 44k/16b stereo
and there are libraries for arduino and maple
including a nice vco

heres a video showing a few things it can do

http://www.youtube.com/watch?v=FI1iq03zbVM

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antto
 
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Re: ot: codec shield for arduino

Post by antto »

i'm not really familiar with arduino and the stuff
but it would be so nice if i could program my own digital synth..

does this thing have enough cpu power to produce 8 voice polyphony with each voice having like 2 oscs and a filter? :mrgreen:

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Re: ot: codec shield for arduino

Post by guest »

the maple could probably do 8 voices
but probably not filters for those voices

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antto
 
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Re: ot: codec shield for arduino

Post by antto »

it'd be so cool to make a poly synth with 2-3 oscs and a resonant filter, kinda like the JP-8000 or something
i read this thing can run 88.2kHz .. nice

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Re: ot: codec shield for arduino

Post by guest »

oscillators are pretty easy to make with it
square and ramp are the least processing costly
with lookup tables being not too bad either
and there is definitely time to add a few oscillators together

ive only done fixed cutoff filters before
i think its get a bit more complicated to do variable ones
although the maple platform should be able to handle it

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Re: ot: codec shield for arduino

Post by isak »

looks very cool guest!
great work!

:)

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altitude
 
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Re: ot: codec shield for arduino

Post by altitude »

Very nice. time to get into some arduino DSP effects. Out of curiosity, what do you have AVR wise in the microdec?

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Re: ot: codec shield for arduino

Post by guest »

the microdec uses an atmega3250p
running at 20mhz

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antto
 
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Re: ot: codec shield for arduino

Post by antto »

resonant filters aren't too hard
especially the fact that the sampling rate would be fixed makes things easier even

i assume it has floating point

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Re: ot: codec shield for arduino

Post by guest »

its all fixed point

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Re: ot: codec shield for arduino

Post by antto »

ah..
well, i guess this is still better than integer..

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