20 Sep
2014
20 Sep
'14
9:43 p.m.
On Sat, Sep 20, 2014 at 12:34:28PM -0400, Mark D. McCurry wrote:
On 09-20, Fons Adriaensen wrote:
Having to do 256 1024-point FFTs just to start a note is insane.
It almost certainly means there is something fundamentally wrong
with the synthesis algorithm used.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
The thing to be avoided is code that e.g.
generates a heavy load
every fourth period and does almost nothing in the three periods in
between. Or a synth that generates a peak load whenever a voice is
started and much less while the note lasts. IIRC yoshi/zyn use FFTs
in some of the algorithms, so this sort of thing could happen.
Yeah, the cost of starting an additive synthesis note can be fairly
expensive as with a worst case instrument and default settings you'd
need to do 256 1024-point IFFTs per part and a bunch of math leading
upto the transform