children's hearing curve? (Kevin Austin )


Subject: children's hearing curve?
From:    Kevin Austin  <kevin.austin@xxxxxxxx>
Date:    Mon, 2 Oct 2006 14:18:48 -0400

List Perhaps this is also related to the upward shift of formant frequencies in children's voices somehow. Formant frequencies for man / woman / child (spoken) adapted from: Peterson and Barney, JASA 24:175 (1952) Rossing, The Science of Sound (1990) p 320, 352 Sung vowels: Appleman (1967) The Science of Vowel Pedagogy, Indiana U Press front /i/ /I/ /´/ /æ/ Spoken (ee) (ih) (eh) (a) Man 270 390 530 660 F(1) Woman 310 430 610 860 Child 370 530 690 1010 M 2290 1990 1840 1720 F(2) W 2790 2480 2330 2050 C 3200 2730 2610 2320 M 3010 2550 2480 2410 F(3) W 3310 3070 2990 2850 C 3730 3600 3570 3320 Formant ­4 ­3 ­2 ­1 amplitude (dB) ­24 ­23 ­17 ­12 ­28 ­27 ­24 ­22 Best Kevin >Date: Sun, 1 Oct 2006 01:33:33 -0700 >From: Hiroko Terasawa <shiraiwa@xxxxxxxx> >Subject: children's hearing curve? > >Dear List, > >I'm asking this question out of curiosity - according to >Fletcher-Munson curve, human hearing is most sensitive around 3khz, >which, as I know of, is delivered by the length of ear canal. I >guess that infants have shorter ear canals, then possibly they have >different peak frequency of sensitivity... maybe the peak frequency >changes while growing up... Have you seen such measurements? I'd >love to see the curve. > > - hiroko >-- >Hiroko Terasawa >http://ccrma.stanford.edu/~hiroko/ > > >Date: Sun, 1 Oct 2006 22:37:31 +0200 >From: Martin Braun <nombraun@xxxxxxxx> >Subject: Re: children's hearing curve? > >Dear Hiroko and list, > >there are plenty of data on ear canal resonance in neonates, >infants, children of various ages, and adults. Not long ago I >reviewed some of this material: > >http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=3Dpubmed&cmd=3DRetrieve&= >dopt=3DAbstractPlus&list_uids=3D16644155&itool=3Diconabstr&query_hl=3D2&i= >tool=3Dpubmed_docsum > >Martin >--------------------------------------------------------------------- >Martin Braun >Neuroscience of Music >S-671 95 Kl=E4ssbol >Sweden >web site: http://w1.570.telia.com/~u57011259/index.htm >


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