Wavetable Synthesis question

[vogels]

Just a Terasic DE0, Altera cyclone 3

 

[BrownOut]

Good. Pleanty of I/O's memory and multipliers. You'll have to create a couple of interfaces, for the A/D conversion. You can try an A/D chip ( or 1 for each string ) or else you can cheese out and cobble up a 'homebrew' A/D using discreete components. On the output side, you might connect a D/A converter, filter, amp... or interface the resultant output to a PC so you can use the sound card. Sounds like an interesting project.

 

[BrownOut]

PS: I forgot you are using an optical pickup. There is probably no amplitude information, only pitch ( frequency ) information, so forget what I said about A/D conversion. If you set your optical system up smartly, there will be no reason to convert the input signal, other than to extract the frequency information.

 

[vogels]

ahhh thank you for that hint. My partners wanted to get the pickup playing through a speaker( so we will definitely have something working ) so its not currently set up like that. : ^ )