Pre-echo audibility? (Dan Ellis )

Subject: Pre-echo audibility?
From:    Dan Ellis  <dpwe(at)ICSI.BERKELEY.EDU>
Date:    Thu, 2 Jan 1997 16:47:44 PST

Dear List - I was sent the following inquiry by Soren Laugesen of Oticon in Denmark <slu(at)>. Please send any replies directly to him, since he is not yet on the list. Thanks. DAn. ------- Forwarded Message From: SLU(at) Date: Thu, 19 Dec 1996 15:06:06 +0100 Dear Collegues, Can anybody help me with information on the audibility of pre-echoes? I have surveyed the literature for any reports on this subject and I have found nothing. In the case of post-echo, as it occurs in room acoustics, detection thresholds as a function of delay time has been studied extensively (e.g. Bilsen; Bilsen & Ritsma; Yost & Hill), but similar studies of pre-echo appear to be non-existent. Results from backward masking experiments (e.g. Fastl; Wilson & Carhart) help to shed some light on the subject, but in that case the probe sound (tone burst, noise burst or click) is very different from the masker (usually a much longer noise burst). In the pre-echo situation the "probe and masker" are filtered versions of the same signal and that probably makes a lot of difference with respect to detectability. Thank you in advance, Soren Laugesen, Ph.D Oticon Research Centre Kongevejen 243 3070 Snekkersten Denmark email: slu(at) ------- End of Forwarded Message

This message came from the mail archive
maintained by:
DAn Ellis <>
Electrical Engineering Dept., Columbia University