Subject: Re: Critical bands v hearing loss From: Vinay SN <vinaysn(at)LYCOS.COM> Date: Thu, 22 Sep 2005 01:04:59 -0500This is a multi-part message in MIME format. --_----------=_1127369099214600 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Dear list, The human ear can only make sense of one signal per critical band. For example, if two sine tones of 100Hz and 110Hz are played, two distinct tones are not heard. This is because the critical bandwidth at 100Hz is about 80Hz, and the two tones would be within the same critical band; one will only hear two distinct tones when the two excitations exist in separate critical bands. Hence there is no point in having controllable bands which are finer in resolution than a critical band. Vinay S.N (M.Phil, M.Sc) Doctoral Student in Audiology, AIISH, Mysore - 6. ----- Original Message ----- From: "Richard H." To: AUDITORY(at)LISTS.MCGILL.CA Subject: Critical bands v hearing loss Date: Wed, 21 Sep 2005 15:14:00 +0100 Hi, In hearing aids & similar band-based audio processors, is there likely to be any point in having controllable bands which are finer in resolution than a critical band? Thanks, regards, Richard --=20 _______________________________________________ Search for businesses by name, location, or phone number. -Lycos Yellow Pa= ges http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.as= p?SRC=3Dlycos10 --_----------=_1127369099214600 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="iso-8859-1" <P>Dear list,</P> <P> The human e= ar can only make sense of one signal per critical band. For example, if two= sine tones of 100Hz and 110Hz are played, two distinct tones are not heard= . This is because the critical bandwidth at 100Hz is about 80Hz, and t= he two tones would be within the same critical band; one will only hear two= distinct tones when the two excitations exist in separate critical bands. = Hence there is no point in having controllable bands which are finer in res= olution than a critical band.</P> <P> </P> <P>Vinay S.N (M.Phil, M.Sc)</P> <P>Doctoral Student in Audiology,</P> <P>AIISH, Mysore - 6.</P> <P> </P> <P> </P> <P><BR><BR> </P> <BLOCKQUOTE style=3D"BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADD= ING-LEFT: 5px">----- Original Message -----<BR>From: "Richard H." <AUDITORY= (at)AUGMENTICS.COM><BR>To: AUDITORY(at)LISTS.MCGILL.CA<BR>Subject: Critical bands= v hearing loss<BR>Date: Wed, 21 Sep 2005 15:14:00 +0100<BR><BR><!DOCTYPE H= TML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <META content=3D"MSHTML 6.00.2900.2722" name=3DGENERATOR> <STYLE></STYLE> <DIV><FONT face=3DArial>Hi,</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>In hearing aids & similar band-based audio proc= essors, is there likely to be any point in having controllable bands which = are finer in resolution than a critical band?</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>Thanks,</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>regards,</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>Richard</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV></BLOCKQUOTE><BR><BR><PRE> </PRE><BR> --=20 <p>_______________________________________________<br> Search for businesses by name, location, or phone number. -Lycos Yellow Pa= ges <br><br><a href=3D"http://r.lycos.com/r/yp_emailfooter/http://yellowpages.l= ycos.com/default.asp?SRC=3Dlycos10">http://yp.lycos.com</a> <BR> --_----------=_1127369099214600--