[LAU] octaver (plugin) for bass

Fons Adriaensen fons at linuxaudio.org
Sun Jun 8 09:49:31 UTC 2014


On Sun, Jun 08, 2014 at 06:38:50AM +0200, hermann meyer wrote:

> >>>The whole part that finds the exact frequency by comparing
> >>>phases is completely redundant. This information is never
> >>>really used. It just looks as if it is used.
> 
> That's true, we could leave that part out, that will spare us 0.2%
> dsp load.

You're missing the point. Which is that the frequency info
*should* be used to decide how to map bins to a new frequency.

Also, it's easy to reduce CPU load by letting the whole thing
run at a quarter of the system sample rate. Which means that
for one octave down everything above 3 kHz is gone. But I guess
CPU load was not the only reason for doing that.

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)



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