Subject: Re: How good is inter-aural frequency or pitch matching in normal humans? From: Pierre Divenyi <pdivenyi@xxxxxxxx> Date: Tue, 30 Jun 2015 08:10:54 -0700 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>This is a multi-part message in MIME format. --------------040100080903050908020102 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Dear Jan, Leon, and Andrew, G. van den Brink wrote several articles on binaural diplacusis. He cites many of his earlier studies in this JASA paper: van den Brink, G. (1971). Two Experiments on Pitch Perception. The Journal of the Acoustical Society of America, 49(1A), 74-75, doi:http://dx.doi.org/10.1121/1.1975957. Good luck, -Pierre On 6/30/15 12:08 AM, Leon van Noorden wrote: > Dear Jan, > > perhaps this helps: > > http://www.mmk.ei.tum.de/fileadmin/w00bqn/www/Personen/Terhardt/ter/top/pshifts.html > > Regards, > Leon van Noorden > > On 29 Jun 2015, at 15:44, Jan Schnupp <jan.schnupp@xxxxxxxx > <mailto:jan.schnupp@xxxxxxxx>> wrote: > >> Dear List, >> >> I have had a conversation with a musically keen retired physicist who >> assured me that when he holds up a tuning fork to one ear he hears >> the pitch of the tuning fork about a semitone lower than at the other >> ear. I had to say that I found that surprising. We always assume that >> there has to be a good alignment of frequency channels going into the >> binaural centers of the brainstem for example, and much effort is >> invested in trying to improve "inter-aural pitch matching" for >> cochlear implant patients. But I have to admit I know of no formal >> studies that have actually measured how good inter-aural pitch >> matching would be for normally hearing subjects, and whether a >> difference of a semitone (after all, only a few % in absolute terms) >> is absurdly large or within the expected human variability. Would any >> of you know of any papers that have looked at this? >> >> Best, >> >> Jan >> >> -- >> Prof Jan Schnupp >> University of Oxford >> Dept. of Physiology, Anatomy and Genetics >> Sherrington Building - Parks Road >> Oxford OX1 3PT - UK >> +44-1865-282012 >> http://jan.schnupp.net <http://jan.schnupp.net/> > --------------040100080903050908020102 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html> <head> <meta content=3D"text/html; charset=3Dutf-8" http-equiv=3D"Content-Ty= pe"> </head> <body bgcolor=3D"#FFFFFF" text=3D"#000000"> <font face=3D"Calibri">Dear Jan, Leon, and Andrew,<br> <br> G. van den Brink wrote several articles on binaural diplacusis. He cites many of his earlier studies in this JASA paper:<br> van den Brink, G. (1971). Two Experiments on Pitch Perception. The Journal of the Acoustical Society of America, 49(1A), 74-75, doi:<a class=3D"moz-txt-link-freetext" href=3D"http://dx.doi.org/10= .1121/1.1975957">http://dx.doi.org/10.1121/1.1975957</a>.<br> <br> Good luck,<br> -Pierre<br> </font><br> <div class=3D"moz-cite-prefix">On 6/30/15 12:08 AM, Leon van Noorden wrote:<br> </div> <blockquote cite=3D"mid:1736_1435648380_5592417C_1736_511_1_2EB66320-2360-4E57-BA91-1= 62047AEE5FE@xxxxxxxx" type=3D"cite"> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Du= tf-8"> Dear Jan, <div><br> <div>perhaps this helps:</div> <div><br> </div> <div><a moz-do-not-send=3D"true" href=3D"http://www.mmk.ei.tum.de/fileadmin/w00bqn/www/Personen/Terhardt/t= er/top/pshifts.html">http://www.mmk.ei.tum.de/fileadmin/w00bqn/www/Person= en/Terhardt/ter/top/pshifts.html</a></div> <div><br> </div> <div>Regards,</div> <div>Leon van Noorden</div> <div><br> <div> <div>On 29 Jun 2015, at 15:44, Jan Schnupp <<a moz-do-not-send=3D"true" href=3D"mailto:jan.schnupp@xxxxxxxx">jan.schnupp@xxxxxxxx= G.OX.AC.UK</a>> wrote:</div> <br class=3D"Apple-interchange-newline"> <blockquote type=3D"cite"> <div dir=3D"ltr">Dear List, <div><br> </div> <div>I have had a conversation with a musically keen retired physicist who assured me that when he holds up a tuning fork to one ear he hears the pitch of the tuning fork about a semitone lower than at the other ear. I had to say that I found that surprising. We always assume that there has to be a good alignment of frequency channels going into the binaural centers of the brainstem for example, and much effort is invested in trying to improve "inter-aural pitch matching" for cochlear implant patients. But I have to admit I know of no formal studies that have actually measured how good inter-aural pitch matching would be for normally hearing subjects, and whether a difference of a semitone (after all, only a few % in absolute terms) is absurdly large or within the expected human variability. Would any of you know of any papers that have looked at this?</div> <div><br> </div> <div>Best,</div> <div><br> </div> <div>Jan=C2=A0<br clear=3D"all"> <div><br> </div> -- <br> <div class=3D"gmail_signature">Prof Jan Schnupp<br> University of Oxford<br> Dept. of Physiology, Anatomy and Genetics<br> Sherrington Building - Parks Road<br> Oxford OX1 3PT - UK<br> +44-1865-282012<br> <a moz-do-not-send=3D"true" href=3D"http://jan.schnupp.net/" target=3D"_blank">= http://jan.schnupp.net</a></div> </div> </div> </blockquote> </div> <br> </div> </div> </blockquote> <br> </body> </html> --------------040100080903050908020102--