can anyone help with this one... (Brittany Guidone )


Subject: can anyone help with this one...
From:    Brittany Guidone  <brittanyguidone@xxxxxxxx>
Date:    Tue, 6 Sep 2011 08:17:59 -0700
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

--0-2108151832-1315322279=:53888 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dear List,=0A=0AI am designing a study in which I planned to "morph" female= voices into male voices=0Aand vice versa. The method I tried was simply to= change the pitch (using GarageBand,=0Aalthough I also tried Audacity). At = first I tried small transpositions, just=A0 3-4 semitones up=A0=0Aor down.= =A0=0A=0AOur task is to identify individual speakers. The problem is that t= he speakers were easily=A0=0Adiscernible before the transformation, however= , after the transposition, none of our pilot=A0=0Asubjects were able to dif= ferentiate between the various speakers.=A0=0A=0ACan anyone help me underst= and what is going on? What is known about the acoustic information=A0=0Apeo= ple use identifying individual speakers? Can anyone suggest a better transf= ormation?=0A=0AThanks in advance,=0A=0ABrittany=A0 --0-2108151832-1315322279=:53888 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"color:#000; background-color:#fff; font-family:ti= mes new roman, new york, times, serif;font-size:12pt"><div><span class=3D"A= pple-style-span" style=3D"font-family: Arial, Helvetica, sans-serif; font-s= ize: 12px; color: rgb(69, 69, 69); ">Dear List,<br><br>I am designing a stu= dy in which I planned to "morph" female voices into male voices<br>and vice= versa. The method I tried was simply to change the pitch (using GarageBand= ,<br>although I also tried Audacity). At first I tried small transpositions= , just&nbsp; 3-4 semitones up&nbsp;<br>or down.&nbsp;<br><br>Our task is to= identify individual speakers. The problem is that the speakers were easily= &nbsp;<br>discernible before the transformation, however, after the transpo= sition, none of our pilot&nbsp;<br>subjects were able to differentiate betw= een the various speakers.&nbsp;<br><br>Can anyone help me understand what i= s going on? What is known about the acoustic information&nbsp;<br>people use identifying individual speakers? Can anyone suggest a better transform= ation?<br><br>Thanks in advance,</span></div><div><font class=3D"Apple-styl= e-span" color=3D"#454545" face=3D"Arial, Helvetica, sans-serif" size=3D"3">= <span class=3D"Apple-style-span" style=3D"font-size: 12px;">Brittany&nbsp;<= /span></font></div></div></body></html> --0-2108151832-1315322279=:53888--


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