[sdiy] OT: Do you guys know what's going on on eBay?

[Rainer Buchty]

>There are multiple OS's for the Mirage laying around, some people have
>even made a few modifications to the stock one. Saw one that allows the
>filters (some kind of CEM) to oscillate.

This brings up a question which bugs me for quite some time. Not only
the Mirage "forbids" self-oscillation, also the ESQ1 and SQ80. During
filter calibration, Q correction values are determined which just forbid
self-oscillating.

Why? The way they did it effectively limits the range of sounds these 
machines can generate, i.e. no "sonar ping" for instance, no chirps, no 
smacking.

Rainer