Subject: Pitch Shifting Algorithm From: Ben Hornsby <ben.hornsby@xxxxxxxx> Date: Sun, 25 Jun 2006 19:33:57 -0500This is a multi-part message in MIME format. ------=_NextPart_000_002E_01C6988E.4D04DC60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi All, I've had a request from someone in our department for suggestions for a = pitch shifting algorithm that will be used to shift the frequencies of = phoneme pairs (e.g. ba-da) into the center range of rat hearing (~8kHz) = without affecting the temporal cues of the speech stimuli. I'm = unfamiliar with available software to do this (and pros and cons for = specific kinds). We do have some commercial software here such as Adobe = Audition and SoundForge that have pitch shifting algorithms as part of = their software package. We are hoping to limit artifact as much as = possible. Would these be appropriate algorithms to use? If not, why not = and any suggestions as to which software program would be more = appropriate? Thanks, Ben Hornsby ------=_NextPart_000_002E_01C6988E.4D04DC60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2912" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Hi All,</FONT></DIV> <DIV><FONT face=3DArial size=3D2>I've had a request from someone in our = department=20 for suggestions for a pitch shifting algorithm that will be used to = shift the=20 frequencies of phoneme pairs (e.g. ba-da) into the center range of rat = hearing=20 (~8kHz) without affecting the temporal cues of the speech stimuli. I'm=20 unfamiliar with available software to do this (and pros and cons for = specific=20 kinds). We do have some commercial software here such as Adobe Audition = and=20 SoundForge that have pitch shifting algorithms as part of their software = package. We are hoping to limit artifact as much as possible. Would = these be=20 appropriate algorithms to use? If not, why not and any suggestions as to = which=20 software program would be more appropriate?</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Ben Hornsby</FONT></DIV></BODY></HTML> ------=_NextPart_000_002E_01C6988E.4D04DC60--