Subject: Re: human versus spectral resolution From: Judi Lapsley Miller <judi@xxxxxxxx> Date: Thu, 3 Apr 2008 11:15:00 +1300 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>This is a multi-part message in MIME format. ------=_NextPart_000_08DD_01C8957B.F5238180 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Michael, You may find my PhD thesis helpful - it showed that under some combinations of bandwidth-duration product, human observers could do as well as an ideal observer. It's available online in pdf and postscript formats at http://psychophysics.org/judi_thesis.htm Kind regards, Judi _____ From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx On Behalf Of Michael Fulton Sent: Thursday, April 03, 2008 11:04 To: AUDITORY@xxxxxxxx Subject: human versus spectral resolution Could anyone please direct me to any literature on what are the comparative limits of : 1) Time/frequency resolution for digital signal spectral analysis , as (sort of) governed by Heisenberg's uncertainty principle with relation to the duration, sampling rate, frequency content and bandwidth of the sound. and 2) The limits of the ability of the human ear to distinquish between frequency/pitch and the exact time location of sounds, more or less the same task as above. Essentially,can a human ear outperform digital ( or even theoretical analysis ) of sounds. Especially, in areas such as pitch discrimination and temporal localisiation of events and not signal separation or some higher level analysis of the sound. Any suggestions will be greatly appreciated. Thanks in advance. M Fulron _____ News, Sports, Entertainment and Weather on your mobile. Text MSN to <http://mobile.uk.msn.com/pc/msn_content.aspx> 63463 Now. ------=_NextPart_000_08DD_01C8957B.F5238180 Content-Type: text/html; charset="us-ascii" 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=3Dus-ascii"> <STYLE> .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } </STYLE> <META content=3D"MSHTML 6.00.6000.16608" name=3DGENERATOR></HEAD> <BODY class=3Dhmmessage> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008>Hi Michael,</SPAN></FONT></DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008></SPAN></FONT> </DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008>You may find my PhD thesis helpful - it = showed=20 that under some combinations of bandwidth-duration product, human = observers=20 could do as well as an ideal observer. It's available online in pdf and=20 postscript formats at</SPAN></FONT></DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008><A=20 href=3D"http://psychophysics.org/judi_thesis.htm">http://psychophysics.or= g/judi_thesis.htm</A></SPAN></FONT></DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008></SPAN></FONT> </DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008>Kind regards,</SPAN></FONT></DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008></SPAN></FONT> </DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DVerdana color=3D#008080><SPAN=20 class=3D818051022-02042008>Judi</SPAN></FONT></DIV><BR> <BLOCKQUOTE=20 style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #008080 2px = solid; MARGIN-RIGHT: 0px"> <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft> <HR tabIndex=3D-1> <FONT face=3DTahoma><B>From:</B> AUDITORY - Research in Auditory = Perception=20 [mailto:AUDITORY@xxxxxxxx <B>On Behalf Of </B>Michael=20 Fulton<BR><B>Sent:</B> Thursday, April 03, 2008 11:04<BR><B>To:</B>=20 AUDITORY@xxxxxxxx<BR><B>Subject:</B> human versus spectral=20 resolution<BR></FONT><BR></DIV> <DIV></DIV>Could anyone please direct me to any literature on what are = the=20 comparative limits of :<BR> <BR>1) Time/frequency resolution for = digital=20 signal spectral analysis , as (sort of) governed by=20 Heisenberg's uncertainty principle with relation to the = duration,=20 sampling rate, frequency content and bandwidth of the=20 sound.<BR> <BR>and <BR> <BR>2) The limits of the ability of = the=20 human ear to distinquish between frequency/pitch and the exact time = location=20 of sounds, more or less the same task as = above.<BR> <BR>Essentially,can a=20 human ear outperform digital ( or even theoretical analysis ) of = sounds.=20 <BR> <BR>Especially, in areas such as pitch=20 discrimination and temporal localisiation of events and not = signal=20 separation or some higher level analysis of the = sound.<BR> <BR>Any=20 suggestions will be greatly appreciated.<BR> <BR>Thanks in=20 advance. <BR><BR>M Fulron<BR><BR> <HR> News, Sports, Entertainment and Weather on your mobile. <A=20 href=3D"http://mobile.uk.msn.com/pc/msn_content.aspx" = target=3D_new>Text MSN to=20 63463 Now.</A> </BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_08DD_01C8957B.F5238180--