--- In
korgpolyex@yahoogroups.com, ASSI <Stromeko@...> wrote:
> There have been several attempts at creating "true random" signals by
> sampling from an ensemble of oscillators. None of them work
> particularly well unless they're followed up by considerable digital
> processing.
Although this approach is used for the hihat/cymbal generator in a lot of analogue drum machines - look at the circuit for the TR606 for example. A single Schmitt trigger is wired up as a rough square-ish wave oscillator and mixed the others to form a complex metallic noise. Two of them are tapped off for the classic 808 cowbell.