Re: Measuring audio quality (Christopher Hummersone )


Subject: Re: Measuring audio quality
From:    Christopher Hummersone  <Christopher.Hummersone@xxxxxxxx>
Date:    Mon, 13 Jun 2011 12:09:04 +0100
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

If it's specifically "quality" you're interested in, and have some listeners handy, you could consider methodologies along the lines of those proposed in ITU-R BS.1534 or ITU-R BS.1116. In this suggestion, or Emmanuel's, you could use the input target signal as the reference. Chris http://www.itu.int/rec/R-REC-BS.1116-1-199710-I/e http://www.itu.int/rec/R-REC-BS.1534-1-200301-I/e http://en.wikipedia.org/wiki/MUSHRA On 13 Jun 2011, at 11:50, XAVIER ANGUERA MIRO wrote: > Thank you Emmanuel for your fast answer. I have looked at the links you > propose, but I have a doubt whether the tools expect to have a clean > signal as reference? > In my tests I obtain several output signals that I would like to compare i > order to know which one is "better", but I do not have any ground-truth or > reference. > > Thank you, > > Xavier Anguera > > ------ > Xavier Anguera, Ph.D. > Research Scientist > Multimedia research group > Telefonica R&D > Tlf: +34 93 365 3203 > Linkedin: http://es.linkedin.com/in/xanguera > Twitter: http://twitter.com/xanguera > Website: http://www.xavieranguera.com/ > > > > > > > On 13/06/11 11:18, "Emmanuel Vincent" <emmanuel.vincent@xxxxxxxx> wrote: > >> Dear Xavier, >> >> Source enhancement or, more generally, source separation algorithms may >> be evaluated via the energy ratio metrics in >> http://sisec2008.wiki.irisa.fr/tiki-index.php?page=Under-determined+speech >> +and+music+mixtures >> (scroll down the page) or the perceptual metrics in >> http://bass-db.gforge.inria.fr/peass/ >> >> Best, >> >> Emmanuel >> >> -- >> Emmanuel Vincent >> METISS Project-Team >> INRIA Rennes - Bretagne Atlantique >> Campus de Beaulieu, 35042 Rennes cedex, France >> Phone: +332 9984 2269 - Fax: +332 9984 7171 >> Web: http://www.irisa.fr/metiss/members/evincent/ >> >> >> On 06/13/2011 10:44 AM, XAVIER ANGUERA MIRO wrote: >>> Dear all, >>> >>> I am working on an acoustic beamforming system that, depending on the >>> input parameters, will output a single audio signal. I am not very >>> familiar with the signal quality area and would like to ask you for >>> advice as to how to measure the quality of each of the signals. Note >>> that I have already tried some toolkits available online that give me >>> some SNR-related measure, but I do not find these consistent across >>> several signals in my dataset. Maybe some sort of comparison between my >>> output signals would give me better results? >>> >>> Thanks in advance for your advice >>> >>> Yours, >>> >>> Xavier Anguera >>> >>> >>> ------------------------------------------------------------------------ >>> Este mensaje se dirige exclusivamente a su destinatario. Puede consultar >>> nuestra política de envío y recepción de correo electrónico en el enlace >>> situado más abajo. >>> This message is intended exclusively for its addressee. We only send and >>> receive email on the basis of the terms set out at. >>> http://www.tid.es/ES/PAGINAS/disclaimer.aspx > > > Este mensaje se dirige exclusivamente a su destinatario. Puede consultar nuestra política de envío y recepción de correo electrónico en el enlace situado más abajo. > This message is intended exclusively for its addressee. We only send and receive email on the basis of the terms set out at. > http://www.tid.es/ES/PAGINAS/disclaimer.aspx


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