[sdiy] Digital noise sources

[Oakley Sound]

 > This is a cool technique though I haven't seen it used.  Are there 
some commercial synths that used this?

I don't know of any synths that use it, although perhaps the Tim Orr 
designed Transcendants may well have done. However, it was standard 
practice where I worked to add the RC differentiator in the feedback 
loop when using these things in the early 80s. You would often need to 
add a start up pulse too to make sure the circuit started correctly at 
power up.

We used the topology in various test equipment stuff both at Marconi and 
Soundcraft. I don't know where the original idea came from though.

Tony

www.oakleysound.com