[sdiy] DX7 chip die photos

ASSI Stromeko at nexgo.de
Sun Nov 14 15:22:13 CET 2021


On Sonntag, 14. November 2021 04:40:34 CET Brian Willoughby wrote:
> One question I'm left with is regarding the second use of logarithms:
> envelopes. Considering that the logarithm of zero is Not a Number, how is
> it that any of the Yamaha FM operators close their envelopes off to zero
> amplitude?

This is also fixed-point arithmetic (and in this case should be saturating to 
work correctly), so you once a number becomes smaller (or larger) than what 
you can represent after the exponentiation you get to chose as what value to 
treat it.  Obviously it makes sense to treat that minimum value as a zero in 
some places and something else in others.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Factory and User Sound Singles for Waldorf rackAttack:
http://Synth.Stromeko.net/Downloads.html#WaldorfSounds






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