Re: Warning - TB303 evangelism - delete without reading

From mikekent
Sent Wed, Oct 30th 1996, 02:16

  >Andy hate to burst your bubble but theTB uses a 24db diode ladder filter
  >that roland copied From Moog and got sued for it . If you doubt me just ask
  >Kevin Lightner . He worked for Roland at the time. It sounds like an 18db
>>>filter because roland botched the design of it.

When most any products (synth or otherwise) are designed the engineer or
inventor tries all types of variations. Sometimes educated guesses,
sometimes accidents, sometimes carefully planned design, sometimes lack of
knowledge, can go into the mix. In the end you pick one design from all of
your variations that seems to be best for the job. A uniquely new musical
instrument requires a lot of experimenting to find the right sound. "Does
it sound good?" is more important than "What does the curcuit design look
like?" I wasn't one of the engineers for the TB-303. However, the head
engineer for the TB-303 is one of the most intelligent people I know.
"Botched" is NOT a the word I would use in this case.

  >Looking at the schematics, they had to have done this on purpose.  I
  >imagine it took them some research to emulate a moog filter without
  >actually copying it.  For them to mess up one capacitor is crazy.

This is a much better guess at the truth. However, I don't think that
emulating a moog filter was the real goal. Making a filter with the right
sound was.

Mike.

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