[sdiy] MIDI VCO Control - but not CV?

[John Mahoney]

At 12:20 PM 7/15/2008, cheater cheater wrote:
>What could be done to circumvent the problem of the shapers that
>create the sines?
>Cheers

AFAIK, a sine shaper requires a clean triangle wave of precise 
amplitude. Distortion results if the amplitude is not just right. 
Part of calibrating a VCO involves setting a trimmer or 2 to get the 
cleanest sine possible.

Therefore, you need to ensure that the triangle wave has constant 
amplitude and no glitches, which usually means ensuring that the 
sawtooth wave has constant amplitude.

That's the goal. I've no suggestions on how to achieve it.

Apologies if that was all review material.

John