Equal loudness contour filter (Imran Dhamani )


Subject: Equal loudness contour filter
From:    Imran Dhamani  <imrandhamani@xxxxxxxx>
Date:    Wed, 19 Jan 2011 06:51:28 +0530
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

--0-266064915-1295400088=:38909 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dear List, =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Happy New Year to all. I am designi= ng a test in which there are pure-tones stringed together with each other i= n the range of 100-500 Hz (15 logarithmic steps). The reference tone is alw= ays 100 Hz and the variable tone is in the specified range. My main intenti= on is to assess the perception of the pattern/rhythm of these sequences bas= ed on just the pitch/frequency cues but the difficulty that i have is there= are additional loudness cues involved as i am dealing with a range of diff= erent frequencies. As i am designing this test for children it will be very= difficult for me to do a loudness balance task to equalize loudness. I was= wondering if there is a possibility that i can use a equal loudness contou= r based filter to filter the tones as to equalize the loudness. It will be = a great help if i anyone can share any information or if can get such a fil= ter. Thanks in anticipation, Regards, Imran Dhamani PhD. student Macquarie University, Australia. $$$$$ monty@xxxxxxxx@xxxxxxxx@xxxxxxxx@xxxxxxxx=0A=0A --0-266064915-1295400088=:38909 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable <table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D"= top" style=3D"font: inherit;">Dear List,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&= nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy New Year to all. I am= designing a test in which there are pure-tones stringed together with each= other in the range of 100-500 Hz (15 logarithmic steps). The reference ton= e is always 100 Hz and the variable tone is in the specified range. My main= intention is to assess the perception of the pattern/rhythm of these seque= nces based on just the pitch/frequency cues but the difficulty that i have = is there are additional loudness cues involved as i am dealing with a range= of different frequencies. As i am designing this test for children it will= be very difficult for me to do a loudness balance task to equalize loudnes= s. I was wondering if there is a possibility that i can use a equal loudnes= s contour based filter to filter the tones as to equalize the loudness. It will be a great help if i anyone can share any information or if can get s= uch a filter.<br><br>Thanks in anticipation,<br>Regards,<br>Imran Dhamani<b= r>PhD. student<br>Macquarie University,<br>Australia.<br><br><br>$$$$$ mont= y@xxxxxxxx@xxxxxxxx@xxxxxxxx@xxxxxxxx</td></tr></table><br> --0-266064915-1295400088=:38909--


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