[sdiy] Additive Synthesis questions

[Eric Brombaugh]

Yup - like this:

http://members.cox.net/ebrombaugh1/synth/dsPIC_fpga/index.html

Note that I haven't yet done a VC additive synth for this, but it wouldn't be hard.

Eric

On Apr 10, 2010, at 10:35 PM, Veronica Merryfield wrote:

> FPGA plus a multi-channel ADC would give you voltage control.
> 
> On 2010-04-10, at 10:25 PM, Paul Schreiber wrote:
> 
>> 
>>> I can't think of a single SIMPLE sine wave generator,
>> 
>> Not in the analog domain. But in a $13 Xilinx Spartan 3e you can put in 128 independent sine wave NCOs no problem. With the $28 part you can stuff in all the multipliers (VCAs) and mixers (adders) to make as big of an additive synth you could ever try to control :) The control would be the hard part. All the hardware could fit on a pc board 3" x 5".
>> 
>> Paul S.
>> 
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