Re: [LAD] Leslie and convolution

On 07/26/2012 07:00 PM, Florian Paul Schmidt wrote:
> On 07/26/2012 06:51 PM, Julien Claassen wrote:
>> Hello everyone! I have just asked myself, if it is a good idea to
>> use an IR of a Leslie for simulating a Leslie. Correct me, if I'm
>> bloody stupid, but working on the basics of convolution, it
>> doesn't look promising. Since you take the IR of the Leslie and
>> then apply the full IR to each sample, meaning, that you might
>> get more of a whirling reverb? Or is there another technique, to
>> apply an IR and cycles. Just one "sample" of the IR to one sample
>> of the input signal. If I am completely wrong, a simple no will
>> suffice. My knowledge of this is basic. I've only got some
>> knowledge from a lecture called "signal theory' to back me up and
>> it should probably be called "an introduction to" or "basics of"
>> at that. :-) Warm regards Julien
>
> Convolution with a constant convolution kernel (constant over
> time) gives you the response of a time-invariant system to the
> input signal. A Leslie is clearly not time-invariant..
>
> Flo
>

You'll want angular dependent convolution
https://ccrma.stanford.edu/~jos/doppler/dafx02.pdf

CCRMA has more publications on that matter.
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Received on Fri Jul 27 00:15:02 2012