Subject: Re: [AUDITORY] What stimuli for localization task under virtual auditory system? From: Bernhard Laback <bernhard.laback@xxxxxxxx> Date: Wed, 11 Sep 2013 10:30:07 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>This is a multi-part message in MIME format. --------------090701090804050808050308 Content-Type: multipart/alternative; boundary="------------070007000607090706080909" --------------070007000607090706080909 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Dear Nicolas, If you are interested primarily in spatial hearing (which appears to be the case given that you are planning a localization experiment), it would be reasonable to use directional transfer functions (DTFs) instead of HRTFs. DTFs contain only the directional components of HRTFs and thus do not contain direction-independent, transfer function of the system. The spectrum of DTF-filtered stimuli becomes quite flat, irrespective if you are using pink or white noise. Therefore, if you are using DTFs the choice between the two types of stimuli is not really important. Good luck and best regards, Bernhard vannson nicolas schrieb: > Dear members, > > As part of my PhD, I'm currently designing a localization task for > single-sided deafness subject using VAS (Virtual Auditory System). I > was wondering what stimuli I should use because the actual literature > is a bit confused with regards to white noise or pink noise being the > best. > Any help would be very appreciated. > > Best regards, > > *Nicolas VANNSON > **PhD student * > > /CNRS UMR 5549, Centre de Recherche Cerveau et Cognition/ > /CHU Purpan - Pavillon Baudot - BP 25202/ > /31052 TOULOUSE cedex 3 - FRANCE / > /Tel: (+33) 0562746162/ > > http://www.cerco.ups-tlse.fr <http://www.cerco.ups-tlse.fr/> > > * > * > > > /**/ --------------070007000607090706080909 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> Dear Nicolas, <br> <br> If you are interested primarily in spatial hearing (which appears to be the case given that you are planning a localization experiment), it would be reasonable to use directional transfer functions (DTFs) instead of HRTFs. DTFs contain only the directional components of HRTFs and thus do not contain direction-independent, transfer function of the system. The spectrum of DTF-filtered stimuli becomes quite flat, irrespective if you are using pink or white noise. Therefore, if you are using DTFs the choice between the two types of stimuli is not really important. <br> <br> Good luck and best regards, <br> Bernhard<br> <br> <div class="moz-cite-prefix">vannson nicolas schrieb:<br> </div> <blockquote cite="mid:8177_1378874949_522FF645_8177_59_1_CAEt90EHm+UsbLgPw-POesrATC-tD8z7QpsuU3VeimUW=qEqmiw@xxxxxxxx" type="cite"> <div dir="ltr"> <div class="gmail_default" style="font-family:'trebuchet ms',sans-serif;color:rgb(0,0,0)"> <div class="gmail_default" style="color:rgb(34,34,34);font-size:13px">Dear members,</div> <div class="gmail_default" style="color:rgb(34,34,34);font-size:13px"> <br> </div> <div class="gmail_default" style="color:rgb(34,34,34);font-size:13px">As part of my PhD, I'm currently designing a localization task for single-sided deafness subject using VAS (Virtual Auditory System). I was wondering what stimuli I should use because the actual literature is a bit confused with regards to white noise or pink noise being the best.</div> <div class="gmail_default" style="color:rgb(34,34,34);font-size:13px">Any help would be very appreciated.</div> <div><br> </div> </div> <div dir="ltr"><font><span>Best regards,</span></font> <div><br> </div> <div><b><font color="#3366ff">Nicolas VANNSON</font><br> </b><font color="#ff0000"><b>PhD student </b></font></div> <div><br> </div> <div><span style="font-family:Times;text-align:center;text-indent:0cm"><i>CNRS UMR 5549, Centre de Recherche Cerveau et Cognition</i></span></div> <i><span style="font-family:Times;line-height:19px">CHU Purpan - </span><span style="line-height:150%;font-family:Times" lang="EN-GB">Pavillon Baudot </span><span style="font-family:Times;line-height:19px"> - </span><span style="font-family:Times;line-height:19px">BP 25202</span></i> <div> <i><span style="font-family:Times;line-height:150%">31052 TOULOUSE cedex 3 - </span><span style="font-family:Times;line-height:150%">FRANCE </span></i></div> <div><span style="font-family:Times;line-height:150%"><i>Tel: (+33) 0562746162</i></span></div> <div><br> </div> <div> <div> <div> <div> <a moz-do-not-send="true" href="http://www.cerco.ups-tlse.fr/" target="_blank">http://www.cerco.ups-tlse.fr</a><br> <p><font><b style="color:rgb(255,0,0)"><span style="font-family:Cambria,serif"><br> </span></b></font></p> <p><font><br> </font></p> <i><b><span style="color:rgb(0,0,0)"></span><span style="color:rgb(0,0,0)"></span></b></i></div> </div> </div> </div> </div> </div> </blockquote> <br> </body> </html> --------------070007000607090706080909-- --------------090701090804050808050308 Content-Type: text/x-vcard; charset=utf-8; name="bernhard_laback.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="bernhard_laback.vcf" begin:vcard fn:Bernhard Laback n:Laback;Bernhard org;quoted-printable:=C3=96sterreichische Akademie der Wissenschaften;Psychoakustik und Experimentelle Audiologie adr;quoted-printable:;;Wohllebengasse 12-14;Wien;;1040;=C3=96sterreich email;internet:Bernhard.Laback@xxxxxxxx title:PhD tel;work:+43 1 51581 2514 tel;home:+43 699 817 44 971 note;quoted-printable:derzeit Fellow am Hanse-Wissenschaftskolleg (HWK) in Delmenhorst=0D=0A= und an der Universit=C3=A4t Oldenburg, Deutschland version:2.1 end:vcard --------------090701090804050808050308--