Re: [LAD] Leslie and convolution

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To: <linux-audio-dev@...>
Date: Thursday, July 26, 2012 - 9:08 pm

On Thursday 26 July 2012 16:59:53 Gene Heskett did opine:

> On Thursday 26 July 2012 13:37:45 Julien Claassen did opine:

I forgot to mention that the tap location up and down the bucket brigade
would have to be cycled from zero to the max separation at 2x the Leslies
speaker rpms in a sin wave pattern. This could be done by keeping the sign
of the sine and shifting the channels so they would crossover in time with
the sin being driven with the Leslies normal rpm, the crossover of course
occurring when the speakers are directly over each other.

It might be a fun exercise to code if our modern cpus are fast enough to do
the bucket brigade in memory at the sample frequency, for the whole brigade
needed. A decent approximation might be done with 8 buckets, but I'd think
16 or 32 deep would be more accurate for the golden eared, which sadly no
longer includes me.

Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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Messages in current thread:
[LAD] Leslie and convolution, Julien Claassen, (Thu Jul 26, 4:51 pm)
Re: [LAD] Leslie and convolution, Florian Paul Schmidt, (Thu Jul 26, 5:00 pm)
Re: [LAD] Leslie and convolution, Robin Gareus, (Thu Jul 26, 6:08 pm)
Re: [LAD] Leslie and convolution, Julien Claassen, (Thu Jul 26, 5:04 pm)
Re: [LAD] Leslie and convolution, Florian Paul Schmidt, (Thu Jul 26, 5:09 pm)
Re: [LAD] Leslie and convolution, Robin Gareus, (Thu Jul 26, 6:14 pm)
Re: [LAD] Leslie and convolution, Fons Adriaensen, (Thu Jul 26, 8:43 pm)
Re: [LAD] Leslie and convolution, Julien Claassen, (Thu Jul 26, 9:40 pm)
Re: [LAD] Leslie and convolution, Julien Claassen, (Thu Jul 26, 5:34 pm)
Re: [LAD] Leslie and convolution, Gene Heskett, (Thu Jul 26, 5:49 pm)
Re: [LAD] Leslie and convolution, Gene Heskett, (Thu Jul 26, 9:08 pm)
Re: [LAD] Leslie and convolution, Ralf Mardorf, (Thu Jul 26, 9:17 pm)
Re: [LAD] Leslie and convolution, Ralf Mardorf, (Thu Jul 26, 6:09 pm)
Re: [LAD] Leslie and convolution, Gene Heskett, (Thu Jul 26, 9:13 pm)
Re: [LAD] Leslie and convolution, Ralf Mardorf, (Thu Jul 26, 9:21 pm)
Re: [LAD] Leslie and convolution, Julien Claassen, (Thu Jul 26, 6:07 pm)