Subject: AW: making a sound unrecognizable From: Stefan Kerber <kerber@xxxxxxxx> Date: Wed, 13 Sep 2006 10:26:43 +0200Dear Ursula, a procedure for neutralizing the meaning of sound was proposed by Fastl. Look at: Neutralizing the meaning of sound for sound quality evaluations. In: Proc. 17. ICA Rome, CD ROM (2001). Fastl, H.: Features of neutralized sounds for long term evaluation. In: Proc. Forum Acusticum Sevilla 2002, NOI-04-003-IP, CD-ROM (2002) Hellbrück, J., Fastl, H., Keller, B.: Effects of meaning of sound on loudness judgements. In: Proc. Forum Acusticum Sevilla 2002, NOI-04-002-IP, CD-ROM (2002) Ellermeier, W., Zeitler, A., Fastl, H.: Predicting annoyance judgments from psychoacoustic metrics: Identifiable versus neutralized sounds. In: Proc. inter-noise 2004 (2004) Greetings Stefan Kerber -----Ursprüngliche Nachricht----- Von: AUDITORY Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx Auftrag von Ursula Kirmse Gesendet: Dienstag, 12. September 2006 18:26 An: AUDITORY@xxxxxxxx Betreff: 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 --------------------------------------