[net.music.synth] vocoders, part II

janzen@pipa.DEC (Thomas E. J. LMO4/B5 279-5421 ECL Test) (02/21/85)

Note that PAiA's vocoder has no keyboard, you must have your own source.
Also, there a few adjustments, I don't remember what.
I doubt that the BP filters can be adjusted, since the tuning is
critical to fidelity, and is apparantly tuned in the design.
There is some sibilant adjustability. (I'm trying to remember the
photograph in the catalogue.)
I'm sure it is undesirable to adjust the tuning or amplitude of the
vocoder filter banks.  You could always equalize the in/output as well.
Wasn't the vocoder developed at Bell Labs around 1940 or so?
Isn't vocoder (voice encoder/decoder?) a trademark of Bell?

Tom Janzen DEC 150 Locke marlboro MA 01752

Thu 21-Feb-1985 15:28 EST