Subject: Re: [LAU] Easy sound morphing?

From: Dan S <danstowell+lxau@...> · Date: Tuesday, March 31, 2009 - 6:52 pm

2009/3/30, shane richards :

quoted text> I've been trying to do some sound morphs between two different hits of a snare drum, one rimshot and the other a plain hit.

>  I tried using SMSTools, and even some windows programs under wine, but the results always seem to sound more like hitting a bucket full of water than a combination of the two drums.
Drum sounds are very "difficult" for these tools because the FFT-based

analysis assumes a quasi-stationary signal (imagine a sine wave that

never changes, that's the easiest) whereas drum hits really strongly

violate this. Also phase issues and other stuff. To be honest you'll

probably do best using some kind of clever perceptually-tweaked

crossfade-based technique... or maybe find something using LPC-based

analysis rather than FFT, that might do well (I haven't looked) - LPC

should have a better chance at handling drum sounds gracefully.
Dan

--

http://www.mcld.co.uk

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