Re: Testing whether some humans can hear high frequencies inaudible to "normal" humans (Peter Lennox )


Subject: Re: Testing whether some humans can hear high frequencies inaudible to "normal" humans
From:    Peter Lennox  <P.Lennox@xxxxxxxx>
Date:    Mon, 14 Jun 2010 11:09:54 +0100
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

--_000_28F33490C302424E98CC6DC2531B2048A8C992020DMKTMBX01unive_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable You'd need an external sound card, of reasonable quality, as the internal = cards on PCs don't go above 20KHz - you need to go up to 26KHz, so need to= play 96 KHz sample rate .wavs Regards ppl ________________________________ From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx= GILL.CA] On Behalf Of Divakaran, Ajay Sent: 14 June 2010 01:25 To: AUDITORY@xxxxxxxx Subject: Testing whether some humans can hear high frequencies inaudible t= o "normal" humans Dear List, My friend thinks that his child can hear frequencies that are inaudible to= other humans because of which he sometimes reacts with alarm that no one = else understands. Is there a way we can verify this systematically? In my = electronics lab during my undergrad one of my friends tested my hearing by= varying the frequency output of a signal generator. Is there a possibili= ty of doing that on a PC? Also, I would highly appreciate any references on music therapy for langua= ge delayed children. I am interested in vocal music training in particular= but would appreciate any general music training as well for therapeutic p= urposes. Best Regards, ajay Ajay Divakaran, Ph.D. Technical Manager Vision and Multi-Sensor Systems Sarnoff Corporation 201 Washington Road PO Box 5300 Princeton, NJ 08543 adivakaran@xxxxxxxx<mailto:adivakaran@xxxxxxxx> www.sarnoff.com<http://www.sarnoff.com> Phone: 609-734-2204 Cell: 609-578-7065 Fax: 609-734-2662 _____________________________________________________________________ The University of Derby has a published policy regarding email and reserve= s the right to monitor email traffic. If you believe this email was sent t= o you in error, please notify the sender and delete this email. Please dir= ect any concerns to Infosec@xxxxxxxx The policy is available here: http://www.derby.ac.uk/LIS/Email-Policy --_000_28F33490C302424E98CC6DC2531B2048A8C992020DMKTMBX01unive_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-mic= rosoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word= " xmlns:x=3D"urn:schemas-microsoft-com:office:excel" xmlns:p=3D"urn:schema= s-microsoft-com:office:powerpoint" xmlns:a=3D"urn:schemas-microsoft-com:of= fice:access" xmlns:dt=3D"uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:= s=3D"uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs=3D"urn:schemas-mi= crosoft-com:rowset" xmlns:z=3D"#RowsetSchema" xmlns:b=3D"urn:schemas-micro= soft-com:office:publisher" xmlns:ss=3D"urn:schemas-microsoft-com:office:sp= readsheet" xmlns:c=3D"urn:schemas-microsoft-com:office:component:spreadshe= et" xmlns:odc=3D"urn:schemas-microsoft-com:office:odc" xmlns:oa=3D"urn:sch= emas-microsoft-com:office:activation" xmlns:html=3D"http://www.w3.org/TR/R= EC-html40" xmlns:q=3D"http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc= =3D"http://microsoft.com/officenet/conferencing" xmlns:D=3D"DAV:" xmlns:Re= pl=3D"http://schemas.microsoft.com/repl/" xmlns:mt=3D"http://schemas.micro= soft.com/sharepoint/soap/meetings/" xmlns:x2=3D"http://schemas.microsoft.c= om/office/excel/2003/xml" xmlns:ppda=3D"http://www.passport.com/NameSpace.= xsd" xmlns:ois=3D"http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns= :dir=3D"http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds=3D= "http://www.w3.org/2000/09/xmldsig#" xmlns:dsp=3D"http://schemas.microsoft= .com/sharepoint/dsp" xmlns:udc=3D"http://schemas.microsoft.com/data/udc" x= mlns:xsd=3D"http://www.w3.org/2001/XMLSchema" xmlns:sub=3D"http://schemas.= microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec=3D"http://www.w3.or= g/2001/04/xmlenc#" xmlns:sp=3D"http://schemas.microsoft.com/sharepoint/" x= mlns:sps=3D"http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi=3D"ht= tp://www.w3.org/2001/XMLSchema-instance" xmlns:udcs=3D"http://schemas.micr= osoft.com/data/udc/soap" xmlns:udcxf=3D"http://schemas.microsoft.com/data/= udc/xmlfile" xmlns:udcp2p=3D"http://schemas.microsoft.com/data/udc/parttop= art" xmlns:st=3D"&#1;" xmlns:st1=3D"urn:schemas-microsoft-com:office:smart= tags" xmlns=3D"http://www.w3.org/TR/REC-html40" xmlns:ns0=3D"http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:ns1=3D"http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:ns2=3D"http://schemas.microsoft.com/office/2006/digsig" xmlns:ns3=3D"http://schemas.openxmlformats.org/package/2006/digital-signat= ure" xmlns:ns4=3D"http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:ns5=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns:ns6=3D"http://schemas.openxmlformats.org/package/2006/relationships"= xmlns:ns7=3D"http://microsoft.com/sharepoint/webpartpages" xmlns:ns8=3D"http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ns9=3D"http://schemas.microsoft.com/exchange/services/2006/messages"= xmlns:ns10=3D"http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:ns11=3D"http://microsoft.com/webservices/SharePointPortalServer/Publ= ishedLinksService" xmlns:ns12=3D"urn:schemas-microsoft-com:"> <head> <meta http-equiv=3DContent-Type content=3D"text/html; charset=3Dus-ascii">= <meta name=3DGenerator content=3D"Microsoft Word 11 (filtered medium)"> <!--[if !mso]> <style> v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} </style> <![endif]--><o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"Posta= lCode"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags= " name=3D"State"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags= " name=3D"Street"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags= " name=3D"City"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags= " name=3D"place"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags= " name=3D"address"/> <!--[if !mso]> <style> st1\:*{behavior:url(#default#ieooui) } </style> <![endif]--> <style> <!--a:link =09{mso-style-priority:99;} span.MSOHYPERLINK =09{mso-style-priority:99;} a:visited =09{mso-style-priority:99;} span.MSOHYPERLINKFOLLOWED =09{mso-style-priority:99;} /* Font Definitions */ @xxxxxxxx =09{font-family:Tahoma; 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you need to go up to 26KHz, so need to play 96 KHz sample rate .wavs<o:p><= /o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span style=3D= 'font-size: 10.0pt;font-family:Arial;color:navy'>Regards<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span style=3D= 'font-size: 10.0pt;font-family:Arial;color:navy'>ppl<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span style=3D= 'font-size: 10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p> <div> <div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font si= ze=3D3 face=3D"Times New Roman"><span lang=3DEN-US style=3D'font-size:12.0pt;font= -family: "Times New Roman"'> <hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1> </span></font></div> <p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span lang=3DEN-US style=3D'font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span= ></font></b><font size=3D2 face=3DTahoma><span lang=3DEN-US style=3D'font-size:10.0pt;font-f= amily:Tahoma'> AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx= A] <b><span style=3D'font-weight:bold'>On Behalf Of </span></b>Divakaran, Ajay<br> <b><span style=3D'font-weight:bold'>Sent:</span></b> 14 June 2010 01:25<br= > <b><span style=3D'font-weight:bold'>To:</span></b> AUDITORY@xxxxxxxx= A<br> <b><span style=3D'font-weight:bold'>Subject:</span></b> Testing whether so= me humans can hear high frequencies inaudible to &quot;normal&quot; humans</s= pan></font><font size=3D3 face=3D"Times New Roman"><span lang=3DEN-US style=3D'font-size:12= .0pt; font-family:"Times New Roman"'><o:p></o:p></span></font></p> </div> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span style=3D'font-siz= e:11.0pt'><o:p>&nbsp;</o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'>Dear List,<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'><o:p>&nbsp;</o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'>My friend thinks that his child can hear frequencies that are inau= dible to other humans because of which he sometimes reacts with alarm that no on= e else understands. Is there a way we can verify this systematically? In my electronics lab during my undergrad one of my friends tested my hearing by= varying the frequency output of a signal generator. Is there&nbsp; a possibility of doing that on a PC?<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'><o:p>&nbsp;</o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'>Also, I would highly appreciate any references on music therapy fo= r language delayed=20children. I am interested in vocal music training in particular but would appreciate any general music training as well for therapeutic purposes.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'><o:p>&nbsp;</o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'>Best Regards,<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'>ajay<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'><o:p>&nbsp;</o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-US style=3D= 'font-size: 10.0pt;font-family:Arial'>Ajay Divakaran, Ph.D.<br> Technical Manager<br> Vision and Multi-Sensor Systems<br> Sarnoff Corporation<br> <st1:Street w:st=3D"on"><st1:address w:st=3D"on">201 Washington Road</st1:= address></st1:Street><br> <st1:address w:st=3D"on"><st1:Street w:st=3D"on">PO Box</st1:Street> 5300<= /st1:address><br> <st1:place w:st=3D"on"><st1:City w:st=3D"on">Princeton</st1:City>, <st1:St= ate w:st=3D"on">NJ</st1:State> <st1:PostalCode w:st=3D"on">08543</st1:PostalC= ode></st1:place></span></font><span lang=3DEN-US><o:p></o:p></span></p> <div> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'>&nbsp;<o:p></o:p></span></font></p> </div> <p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-US style=3D= 'font-size: 10.0pt;font-family:Arial'><a href=3D"mailto:adivakaran@xxxxxxxx">adivak= aran@xxxxxxxx</a><br> <a href=3D"http://www.sarnoff.com">www.sarnoff.com</a><br> Phone: 609-734-2204<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-US style=3D= 'font-size: 10.0pt;font-family:Arial'>Cell: 609-578-7065<br> Fax: 609-734-2662</span></font><span lang=3DEN-US><o:p></o:p></span></p> <p class=3DMsoNormal><font size=3D2 face=3DCalibri><span lang=3DEN-US styl= e=3D'font-size: 11.0pt'><o:p>&nbsp;</o:p></span></font></p> </div> <BR> _____________________________________________________________________<BR> The University of Derby has a published policy regarding email and reserve= s the right to monitor email traffic. If you believe this email was sent t= o you in error, please notify the sender and delete this email. Please dir= ect any concerns to Infosec@xxxxxxxx<BR> The policy is available here: http://www.derby.ac.uk/LIS/Email-Policy<BR> </body> </html> --_000_28F33490C302424E98CC6DC2531B2048A8C992020DMKTMBX01unive_--


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