Subject: Re: making a sound unrecognizable From: Valeriy Shafiro <Valeriy_Shafiro@xxxxxxxx> Date: Tue, 12 Sep 2006 12:28:40 -0500Ursula, You can try some vocoder processed sounds with different spectral resolution. You can hear some samples here http://www.rushu.rush.edu/cds/arl/DEMOS/CIwebdemo/ AS far as making hybrid sounds with the spectrum of one and the envelope of another, I think Brian Gygi did some research with environmental sounds along those lines a couple of years ago. Regards, Valeriy ------------------------------------------------------------- Valeriy Shafiro Communication Disorders and Sciences Rush University Medical Center Chicago, IL office (312) 942 - 3298 lab (312) 942 - 3316 email: valeriy_shafiro@xxxxxxxx -----AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxx> wrote: ----- To: AUDITORY@xxxxxxxx From: Ursula Kirmse <ukirmse@xxxxxxxx> Sent by: AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxx> Date: 09/12/2006 11:26AM Subject: making a sound unrecognizable Dear list members, I'm looking for a possibility to change/edit a environmental or at least natural sound in a way that it is not any longer recognizable as what it is, but, however, for doing this with changing as less acoustic parameters as possible. ;-) The intention is to use these sounds in a MMN paradigm and it is important that both "versions" of the sound are acoustically as similar as possible. The main point is that the sound (that can also be a more complex thing as the sound of a barking dog or a something like that) should be not possible to be recognized as what it is. I would be very happy about ideas or would like know if maybe somebody has already tried something like this? I would also be very happy about recommations for software or matlab scripts that could be helpful in respect to this. For example I'm looking for a way to transfer the amplitude envelope from one sound to another (I already wrote a matlab routine for this, but its not yet functioning perfectly fine and the result is not completely convincing). So if anybody has a an idea I would be grateful. best regards and thanks a lot, Ursula Kirmse -- -------------------------------------- Ursula Kirmse University of Leipzig Cognitive & Biological Psychology Institute of Psychology I Seeburgstrasse 14-20 04103 Leipzig, Germany Phone +493419735978/Fax +493419735969 --------------------------------------