[sdiy] quadrature VCO - a different approach

[allenre at umich.edu]

> The room our band rehearses in has a non-rectangular shape too. It's 
> really amazing, almost CD-quality recordings can be made with a cheap 
> stereo microphone.

Actually, all you need for CD-quality recordings is 16-bit, 44.1kHz sampling. 
The non-rectangular shaped room just reduces standing waves.

Ryan