Subject: Speech reception in noise From: Gaston Hilkhuysen <ghilkhuysen@xxxxxxxx> Date: Sat, 4 Apr 2009 11:40:46 +0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--_0f038ea3-12fd-4b62-9515-7376dde7c9f2_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Dear Enrique=2C =20 One way to address your question is to look at the slope of the function th= at relates SNR to intelligibility=2C i.e. the psychometric function (PMf). = This was done in the following papers: =20 Smoorenburg=2C G.F. (1992) Speech reception in quiet and in noisy condition= s by individuals with noise-induced hearing loss in relation to their tone = audiogram. J Acoust Soc Am 91=2C 421-37. found no relation between PMf slope and amount of hearing loss. Turner=2C C.W. and Brus=2C S.L. (2001) Providing low- and mid-frequency spe= ech information to listeners with sensorineural hearing loss. J Acoust Soc = Am 109=2C 2999-3006. expresses intelligibility in articulation indices and finds hearing impaire= d show more benefit of additional speech information=2C i.e. show steeper s= lopes. Wagener=2C K.C. and Brand=2C T. (2005) Sentence intelligibility in noise fo= r listeners with normal hearing and hearing impairment: influence of measur= ement procedure and masking parameters. Int J Audiol 44=2C 144-56. finds that slopes are slightly smaller for HI. =20 HTH instead of confuses=2C =20 Yours=2C =20 -Gaston.=20 > ---------------------------------------------------------------------- >=20 > Date: Fri=2C 3 Apr 2009 11:12:39 +0200 > From: "Lopez-Poveda=2C Enrique A." <ealopezpoveda@xxxxxxxx> > Subject: Speech reception in noise >=20 > Dear all=2C >=20 > Everybody knows that speech perception in noisy=3D20 > backgrounds is poorer for listeners with cochlear=3D20 > hearing loss than for normal-hearing listeneres.=3D20 > But is there any evidence that the rate of=3D20 > decrease of performance with decreasing=3D20 > speech-to-noise ratio is greatest for=3D20 > hearing-impaired than for normal-hearing=3D20 > listeners? I would appreciate any reference to relevant studies. >=20 > - Enrique A. Lopez-Poveda >=20 > Enrique A. Lopez-Poveda=2C Ph.D. > Instituto de Neurociencias de Castilla y Le=3DF3n=2C Universidad de Salam= anca > C/ Pintor Fernando Gallego 1=2C 37007 Salamanca=2C Spain. > Phone: (+34) 923 294 500 ext. 1957. Fax: (+34) 923 294 750 > E-mail: ealopezpoveda@xxxxxxxx http://web.usal.es/~ealopezpoveda/=3D20 >=20 > ------------------------------ _________________________________________________________________ View your Twitter and Flickr updates from one place =96 Learn more! http://clk.atdmt.com/UKM/go/137984870/direct/01/= --_0f038ea3-12fd-4b62-9515-7376dde7c9f2_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable <html> <head> <style> .hmmessage P { margin:0px=3B padding:0px } body.hmmessage { font-size: 10pt=3B font-family:Verdana } </style> </head> <body class=3D'hmmessage'> <FONT size=3D2> Dear Enrique=2C<BR>  =3B<BR> One way to address your question is to look at the slope of the function th= at relates SNR to intelligibility=2C i.e. the psychometric function (PMf). = This was done in the following papers:<BR>  =3B<BR> <DIR> <DIR><SPAN lang=3DN> Smoorenburg=2C G.F. (1992) Speech reception in quiet and in noisy condition= s by individuals with noise-induced hearing loss in relation to their tone = audiogram. <I>J Acoust Soc Am</I> <B>91</B>=2C 421-37.<BR></DIR></DIR></SPA= N><SPAN lang=3DEN> found no relation between PMf slope and amount of hearing loss.<BR> <DIR> <DIR></SPAN><SPAN lang=3DN> Turner=2C C.W. and Brus=2C S.L. (2001) Providing low- and mid-frequency spe= ech information to listeners with sensorineural hearing loss. <I>J Acoust S= oc Am</I> <B>109</B>=2C 2999-3006.<BR></DIR></DIR></SPAN><SPAN lang=3DEN> expresses intelligibility in articulation indices and finds hearing impaire= d show more benefit of additional speech information=2C i.e. show steeper s= lopes.<BR> <DIR> <DIR></SPAN><SPAN lang=3DN> Wagener=2C K.C. and Brand=2C T. (2005) Sentence intelligibility in noise fo= r listeners with normal hearing and hearing impairment: influence of measur= ement procedure and masking parameters. <I>Int J Audiol</I> <B>44</B>=2C 14= 4-56.<BR></DIR></DIR></SPAN><SPAN lang=3DEN> finds that slopes are slightly smaller for HI.<BR>  =3B<BR> HTH instead of confuses=2C<BR>  =3B<BR> Yours=2C<BR>  =3B<BR> -Gaston. <BR></FONT></SPAN> >=3B --------------------------------------------------------------------= --<BR>>=3B <BR>>=3B Date: Fri=2C 3 Apr 2009 11:12:39 +0200<BR>>=3B Fr= om: "Lopez-Poveda=2C Enrique A." <=3Bealopezpoveda@xxxxxxxx>=3B<BR>>= =3B Subject: Speech reception in noise<BR>>=3B <BR>>=3B Dear all=2C<BR>= >=3B <BR>>=3B Everybody knows that speech perception in noisy=3D20<BR>&= gt=3B backgrounds is poorer for listeners with cochlear=3D20<BR>>=3B hear= ing loss than for normal-hearing listeneres.=3D20<BR>>=3B But is there an= y evidence that the rate of=3D20<BR>>=3B decrease of performance with dec= reasing=3D20<BR>>=3B speech-to-noise ratio is greatest for=3D20<BR>>=3B= hearing-impaired than for normal-hearing=3D20<BR>>=3B listeners? I would= appreciate any reference to relevant studies.<BR>>=3B <BR>>=3B - Enriq= ue A. Lopez-Poveda<BR>>=3B <BR>>=3B Enrique A. Lopez-Poveda=2C Ph.D.<BR= >>=3B Instituto de Neurociencias de Castilla y Le=3DF3n=2C Universidad de= Salamanca<BR>>=3B C/ Pintor Fernando Gallego 1=2C 37007 Salamanca=2C Spa= in.<BR>>=3B Phone: (+34) 923 294 500 ext. 1957. Fax: (+34) 923 294 750<BR= >>=3B E-mail: ealopezpoveda@xxxxxxxx http://web.usal.es/~ealopezpoveda/= =3D20<BR>>=3B <BR>>=3B ------------------------------<BR><BR><br /><hr = />Surfing the web just got more rewarding. <a href=3D'http://extras.uk.msn.= com/internet-explorer-8/?ocid=3DT010MSN07A0716U' target=3D'_new'>Download = the New Internet Explorer 8</a></body> </html>= --_0f038ea3-12fd-4b62-9515-7376dde7c9f2_--