Re: Partial loudness - if the background is a complex signal (Christian Uhle )


Subject: Re: Partial loudness - if the background is a complex signal
From:    Christian Uhle  <Christian.Uhle@xxxxxxxx>
Date:    Mon, 14 Feb 2011 10:43:44 +0100
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

This is a multi-part message in MIME format. --------------090609030209080905030208 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Hello, I have not received many responses to the question below, but some replies off-list, showing a great interest in this question. Although it is not much, let me just sum up the pointers to the literature I have received. - Glasberg, B.R., and Moore, B.C.J. 2005. Development and evaluation of a model for predicting the audibility of time-varying sounds in the presence of background sounds. /Journal of the Audio Engineering Society/ 53: 906-918. - Bradter and Hobohm, Loudness calculation for individual acoustical objects within complex temporally variable sounds, /AES 124th Conv/., 2008. - Verhey and Heise, Einfluss der Zeitstruktur des Hintergrundes auf die Tonhaltigkeit und Lautheit des tonalen Vordergrundes (in German), /DAGA/, 2010. I think it is a very interesting topic, with many potential applications. All the best, Christian Am 01.02.2011 12:34, schrieb Christian Uhle: > Dear readers, > > this is my first post here: Hello everyone. > The question which puzzles me for quite some time is related to > partial loudness. > The loudness of a sound is reduced if it is presented in noise. > Models exist which are capable of predicting the partial loudness, > e.g. [1]. > > My understanding is that in [1] the interferer (the masker, or > background) is stationary noise. > Are there also models for partial loudness if the interferer is a > complex signal, e.g. music or speech? > > I assume that such a model needs to determine a timbral similarity > between the target and the interferer. > (For example: In an extreme case where both signals sound (are) the > same, the interferer would not reduce but increase the loudness of the > signal. > If we start to modulate the frequency of one of the signals slightly, > this will affect the partial loudness, but how (quantitatively)?) > The similarity of both signals depends on comodulation of sub-band > amplitude envelopes of signal and interferer, and on other cues as > well, as in stream segregation mechanisms. > > Pointers to related work and papers as well as your thougths about > this are highly appreciated. > Another question would be if experimental data about partial loudness > in complex signals exist, and where to find them. > > All the best, > > Christian > > [1] Moore, Glasberg, Baer, "A Model for the Prediction of Thresholds, > Loudness, and Partial Loudness", JAES, 1997. > -- Dr.-Ing. Christian Uhle IIS Labs Dept. Audio Fraunhofer Institute for Integrated Circuits IIS Am Wolfsmantel 33 91058 Erlangen Germany E-mail:christian.uhle@xxxxxxxx Phone: +49(0) 9131 / 776 - 6230 Fax: +49(0) 9131 / 776 - 6099 http://www.iis.fraunhofer.de/amm/ Meet us at these events: Workshop Digital Broadcasting, September 15-16, 2010 CEATEC Tokyo, Oktober 06-09, 2010 Medientage Munich, Oktober 13-15, 2010 ... --------------090609030209080905030208 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=ISO-8859-15" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Hello,<br> <br> I have not received many responses to the question below, but some replies off-list, showing a great interest in this question. <br> Although it is not much, let me just sum up the pointers to the literature I have received.<br> - Glasberg, B.R., and Moore, B.C.J. 2005. Development and evaluation of a model for predicting the audibility of time-varying sounds in the presence of background sounds. <i>Journal of the Audio Engineering Society</i> 53: 906-918.<br> - Bradter and Hobohm, Loudness calculation for individual acoustical objects within complex temporally variable sounds, <i>AES 124th Conv</i>., 2008.<br> <small><font size="+1"><small><a>- Verhey and Heise, Einfluss der Zeitstruktur des Hintergrundes auf die Tonhaltigkeit und Lautheit des tonalen Vordergrundes</a></small></font></small> (in German), <i>DAGA</i>, 2010.<br> <br> I think it is a very interesting topic, with many potential applications. <br> <br> All the best,<br> <br> Christian<br> <br> <br> Am 01.02.2011 12:34, schrieb Christian Uhle: <blockquote cite="mid:4D47EFD5.6010608@xxxxxxxx" type="cite">Dear readers, <br> <br> this is my first post here: Hello everyone. <br> The question which puzzles me for quite some time is related to partial loudness. <br> The loudness of a sound is reduced if it is presented in noise. <br> Models exist which are capable of predicting the partial loudness, e.g. [1]. <br> <br> My understanding is that in [1] the interferer (the masker, or background) is stationary noise. <br> Are there also models for partial loudness if the interferer is a complex signal, e.g. music or speech? <br> <br> I assume that such a model needs to determine a timbral similarity between the target and the interferer. <br> (For example: In an extreme case where both signals sound (are) the same, the interferer would not reduce but increase the loudness of the signal. <br> If we start to modulate the frequency of one of the signals slightly, this will affect the partial loudness, but how (quantitatively)?) <br> The similarity of both signals depends on comodulation of sub-band amplitude envelopes of signal and interferer, and on other cues as well, as in stream segregation mechanisms. <br> <br> Pointers to related work and papers as well as your thougths about this are highly appreciated. <br> Another question would be if experimental data about partial loudness in complex signals exist, and where to find them. <br> <br> All the best, <br> <br> Christian <br> <br> [1] Moore, Glasberg, Baer, "A Model for the Prediction of Thresholds, Loudness, and Partial Loudness", JAES, 1997. <br> <br> </blockquote> <br> <br> <pre class="moz-signature" cols="72">-- Dr.-Ing. Christian Uhle IIS Labs Dept. Audio Fraunhofer Institute for Integrated Circuits IIS Am Wolfsmantel 33 91058 Erlangen Germany E-mail: <a class="moz-txt-link-abbreviated" href="mailto:christian.uhle@xxxxxxxx">christian.uhle@xxxxxxxx</a> Phone: +49(0) 9131 / 776 - 6230 Fax: +49(0) 9131 / 776 - 6099 <a class="moz-txt-link-freetext" href="http://www.iis.fraunhofer.de/amm/">http://www.iis.fraunhofer.de/amm/</a> Meet us at these events: Workshop Digital Broadcasting, September 15-16, 2010 CEATEC Tokyo, Oktober 06-09, 2010 Medientage Munich, Oktober 13-15, 2010 ...</pre> </body> </html> --------------090609030209080905030208--


This message came from the mail archive
/home/empire6/dpwe/public_html/postings/2011/
maintained by:
DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University