Real time frequency shaping (Ben Hornsby )


Subject: Real time frequency shaping
From:    Ben Hornsby  <ben.hornsby(at)VANDERBILT.EDU>
Date:    Wed, 27 Oct 2004 10:49:57 -0500

This is a multi-part message in MIME format. ------=_NextPart_000_001A_01C4BC12.B5600AA0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello All, I am looking for suggestions for a dedicated device (such as a graphic equalizer) that is capable of providing frequency shaping appropriate for persons with sloping high frequency hearing loss (this can require pretty sharp frequency shaping in the high frequencies). I would prefer a programmable device with stereo input as we will be using it to shape bilateral inputs for individual with varying degrees and configurations of hearing loss. Likewise we have a TDT system 3 processor (interfaced in Matlab), so if anyone has code to do this type of processing real time using the system 3 and would be willing to share I would greatly appreciate it. Thanks Much, Ben Benjamin W.Y. Hornsby, Ph.D. Research Assistant Professor Vanderbilt Bill Wilkerson Center 1114 19th Avenue South Nashville, TN 37212 Phone: 615-936-5132 e-mail: ben.hornsby(at)vanderbilt.edu ------=_NextPart_000_001A_01C4BC12.B5600AA0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable <html xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:st1=3D"urn:schemas-microsoft-com:office:smarttags" = xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"> <meta name=3DGenerator content=3D"Microsoft Word 11 (filtered medium)"> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"PostalCode"/> <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"City"/> <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"address"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"PlaceType"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"PlaceName"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"place"/> <!--[if !mso]> <style> st1\:*{behavior:url(#default#ieooui) } </style> <![endif]--> <style> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; line-height:200%; font-size:12.0pt; font-family:"Times New Roman";} a:link, span.MsoHyperlink {color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:purple; text-decoration:underline;} p.e-mail, li.e-mail, div.e-mail {margin:0in; margin-bottom:.0001pt; font-size:10.0pt; font-family:Arial;} span.EmailStyle18 {mso-style-type:personal-compose; font-family:Arial; color:windowtext; font-weight:normal; font-style:normal; text-decoration:none none;} (at)page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in;} div.Section1 {page:Section1;} --> </style> </head> <body lang=3DEN-US link=3Dblue vlink=3Dpurple> <div class=3DSection1> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Hello = All,<o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>I am looking for = suggestions for a dedicated device (such as a graphic equalizer) that is capable of = providing frequency shaping appropriate for persons with sloping high frequency = hearing loss (this can require pretty sharp frequency shaping in the high = frequencies). I would prefer a programmable device with stereo input as we will be = using it to shape bilateral inputs for individual with varying degrees and configurations of hearing loss. <o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Likewise we have a TDT = system 3 processor (interfaced in Matlab), so if anyone has code to do this type of = processing real time using the system 3 and would be willing to share I would = greatly appreciate it.<o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Thanks = Much,<o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></fo= nt></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Ben<o:p></o:p></span></font>= </p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></fo= nt></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D3 face=3D"Times New Roman"><span = style=3D'font-size:12.0pt'>&nbsp;<o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Benjamin W.Y. Hornsby, = Ph.D.</span></font><o:p></o:p></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Research Assistant = Professor</span></font><o:p></o:p></p> <p class=3DMsoNormal style=3D'line-height:normal'><st1:place = w:st=3D"on"><st1:PlaceName w:st=3D"on"><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family: Arial'>Vanderbilt</span></font></st1:PlaceName><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'> <st1:PlaceName = w:st=3D"on">Bill</st1:PlaceName> <st1:PlaceName w:st=3D"on">Wilkerson</st1:PlaceName> <st1:PlaceType = w:st=3D"on">Center</st1:PlaceType></span></font></st1:place><o:p></o:p></= p> <p class=3DMsoNormal style=3D'line-height:normal'><st1:Street = w:st=3D"on"><st1:address w:st=3D"on"><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family: Arial'>1114 19th Avenue = South</span></font></st1:address></st1:Street><o:p></o:p></p> <p class=3DMsoNormal style=3D'line-height:normal'><st1:place = w:st=3D"on"><st1:City w:st=3D"on"><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family: Arial'>Nashville</span></font></st1:City><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>, <st1:State = w:st=3D"on">TN</st1:State> <st1:PostalCode = w:st=3D"on">37212</st1:PostalCode></span></font></st1:place><o:p></o:p></= p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D3 face=3D"Times New Roman"><span = style=3D'font-size:12.0pt'>&nbsp;<o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>Phone: = 615-936-5132</span></font><o:p></o:p></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>e-mail: <a href=3D"mailto:ben.hornsby(at)vanderbilt.edu">ben.hornsby(at)vanderbilt.edu</a>= </span></font><o:p></o:p></p> <p class=3DMsoNormal style=3D'line-height:normal'><font size=3D3 face=3D"Times New Roman"><span = style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></font></p> </div> </body> </html> ------=_NextPart_000_001A_01C4BC12.B5600AA0--


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