Subject: Re: phantom sources From: Peter Lennox <P.Lennox@xxxxxxxx> Date: Tue, 29 Jul 2014 12:47:20 +0100 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--_000_28F33490C302424E98CC6DC2531B2048EFE6E13772MKTMBX01unive_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable William - didn't you do some work in 1971 on this? Dr. Peter Lennox School of Technology, Faculty of Arts, Design and Technology University of Derby, UK e: p.lennox@xxxxxxxx<mailto:p.lennox@xxxxxxxx> t: 01332 593155 From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx= GILL.CA] On Behalf Of William Yost Sent: 26 July 2014 16:46 To: AUDITORY@xxxxxxxx Subject: Re: phantom sources Fine work in Journal of the Acoustical Society of America by Wes Grantham Sent from my IPhone William Yost William.yost@xxxxxxxx<mailto:William.yost@xxxxxxxx> Office: 480-727-7148 Home: 480-306-6755 Cell: 480-231-9250 On Jul 25, 2014, at 9:17 PM, "Philip Robinson" <philrob22@xxxxxxxx<mailto= :philrob22@xxxxxxxx>> wrote: Howdy y'all, I'm doing some investigations preliminary to implementing a room acoustics= auralization system and want to get some input from the community. Is there any good literature on the perceptual difference between a phanto= m source (e.g. between a stereo pair) and a real source (e.g. center chann= el)? I am interested in more than just simple localization: width, resolu= tion of multiple phantoms, etc.? Is perception of a phantom source the sam= e when panned between a triad or a pair of loudspeakers? My basic understa= nding is that phantom sources are wider or blurrier than real ones, has th= is been specifically tested? Any opinions or references are welcome. Have a great summer, Philip W. Robinson Environmental Design Analyst Specialist Modelling Group Foster + Partners Riverside, 22 Hester Road<x-apple-data-detectors://0/0> London SW11 4AN<x-apple-data-detectors://0/0> E probinson@xxxxxxxx<mailto:probinson@xxxxxxxx>= The University of Derby has a published policy regarding email and reserve= s the right to monitor email traffic. If you believe this was sent to you = in error, please select unsubscribe. Unsubscribe and Security information contact: infosec@xxxxxxxx For all FOI requests please contact: foi@xxxxxxxx All other Contacts are at http://www.derby.ac.uk/its/contacts/ --_000_28F33490C302424E98CC6DC2531B2048EFE6E13772MKTMBX01unive_ 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:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"ht= tp://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV=3D"Content-Type" CON= TENT=3D"text/html; charset=3Dus-ascii"><meta name=3DGenerator content=3D"M= icrosoft Word 14 (filtered medium)"><style><!-- /* Font Definitions */ @xxxxxxxx =09{font-family:Calibri; =09panose-1:2 15 5 2 2 2 4 3 2 4;} @xxxxxxxx =09{font-family:Tahoma; =09panose-1:2 11 6 4 3 5 4 4 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal =09{margin:0cm; =09margin-bottom:.0001pt; =09font-size:12.0pt; =09font-family:"Times New Roman","serif";} a:link, span.MsoHyperlink =09{mso-style-priority:99; =09color:blue; =09text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed =09{mso-style-priority:99; =09color:purple; =09text-decoration:underline;} span.EmailStyle17 =09{mso-style-type:personal-reply; =09font-family:"Calibri","sans-serif"; =09color:#1F497D;} .MsoChpDefault =09{mso-style-type:export-only; =09font-size:10.0pt;} @xxxxxxxx WordSection1 =09{size:612.0pt 792.0pt; =09margin:72.0pt 72.0pt 72.0pt 72.0pt;} div.WordSection1 =09{page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB link=3Dblue vl= ink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span style=3D= 'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Willia= m – didn’t you do some work in 1971 on this?<o:p></o:p></span>= </p><p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Cali= bri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class= =3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri","sans-s= erif";color:#1F497D;mso-fareast-language:EN-US'>Dr. Peter Lennox<o:p></o:p= ></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-fami= ly:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p>&= nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt= ;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-= US'>School of Technology,<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D= ;mso-fareast-language:EN-US'>Faculty of Arts, Design and Technology<o:p></= o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-f= amily:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>Uni= versity of Derby, UK<o:p></o:p></span></p><p class=3DMsoNormal><span style= =3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-= fareast-language:EN-US'>e: <a href=3D"mailto:p.lennox@xxxxxxxx">p.lenno= x@xxxxxxxx</a> <o:p></o:p></span></p><p class=3DMsoNormal><span style=3D= 'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-far= east-language:EN-US'>t: 01332 593155<o:p></o:p></span></p></div><p class=3D= MsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri","sans-seri= f";color:#1F497D'><o:p> </o:p></span></p><div><div style=3D'border:no= ne;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMs= oNormal><b><span lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Tahom= a","sans-serif"'>From:</span></b><span lang=3DEN-US style=3D'font-size:10.= 0pt;font-family:"Tahoma","sans-serif"'> AUDITORY - Research in Auditory Pe= rception [mailto:AUDITORY@xxxxxxxx <b>On Behalf Of </b>William Yos= t<br><b>Sent:</b> 26 July 2014 16:46<br><b>To:</b> AUDITORY@xxxxxxxx= A<br><b>Subject:</b> Re: phantom sources<o:p></o:p></span></p></div></div>= <p class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>Fine w= ork in Journal of the Acoustical Society of America by Wes Grantham<br><br= >Sent from my IPhone <o:p></o:p></p><div><p class=3DMsoNormal>William Yost= <o:p></o:p></p></div><div><p class=3DMsoNormal><a href=3D"mailto:William.y= ost@xxxxxxxx">William.yost@xxxxxxxx</a><o:p></o:p></p></div><div><p class=3D= MsoNormal>Office: 480-727-7148<o:p></o:p></p></div><div><p class=3DMsoNorm= al>Home: 480-306-6755<o:p></o:p></p></div><div><p class=3DMsoNormal>Cell: = 480-231-9250<o:p></o:p></p></div><div><p class=3DMsoNormal><o:p> </o:= p></p></div><div><p class=3DMsoNormal><o:p> </o:p></p></div></div><di= v><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><br>On Jul 25, 2014,= at 9:17 PM, "Philip Robinson" <<a href=3D"mailto:philrob22@xxxxxxxx= MAIL.COM">philrob22@xxxxxxxx</a>> wrote:<o:p></o:p></p></div><blockquo= te style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=3DMsoNorma= l>Howdy y’all,<o:p></o:p></p><p class=3DMsoNormal> <o:p></o:p><= /p><p class=3DMsoNormal>I’m doing some investigations preliminary to= implementing a room acoustics auralization system and want to get some in= put from the community.<o:p></o:p></p><p class=3DMsoNormal> <o:p></o:= p></p><p class=3DMsoNormal>Is there any good literature on the perceptual = difference between a phantom source (e.g. between a stereo pair) and a rea= l source (e.g. center channel)? I am=20interested in more than just = simple localization: width, resolution of multiple phantoms, etc.? Is perc= eption of a phantom source the same when panned between a triad or a pair = of loudspeakers? My basic understanding is that phantom sources are wider = or blurrier than real ones, has this been specifically tested?<o:p></o:p><= /p><p class=3DMsoNormal> <o:p></o:p></p><p class=3DMsoNormal>Any opin= ions or references are welcome.<o:p></o:p></p><p class=3DMsoNormal> <= o:p></o:p></p><p class=3DMsoNormal>Have a great summer,<o:p></o:p></p><p c= lass=3DMsoNormal> <o:p></o:p></p><p class=3DMsoNormal><b>Philip W. Ro= binson </b><o:p></o:p></p><p class=3DMsoNormal><b>Environmental Desig= n Analyst</b><o:p></o:p></p><p class=3DMsoNormal><b>Specialist Modelling G= roup</b><o:p></o:p></p><p class=3DMsoNormal> <o:p></o:p></p><p class=3D= MsoNormal>Foster + Partners<o:p></o:p></p><p class=3DMsoNormal>Riverside,&= nbsp;<a href=3D"x-apple-data-detectors://0/0">22 Hester Road</a><o:p></o:p= ></p><p class=3DMsoNormal><span style=3D'color:black'><a href=3D"x-apple-d= ata-detectors://0/0">London SW11 4AN</a></span><o:p></o:p></p><p class=3DM= soNormal>E <a href=3D"mailto:probinson@xxxxxxxx">p= robinson@xxxxxxxx</a><o:p></o:p></p><p class=3DMsoNormal>&nbs= p;<o:p></o:p></p></div></blockquote></div><br clear=3D"both"> The University of Derby has a published policy regarding email and reserve= s the right to monitor email traffic. If you believe this was sent to you = in error, please select unsubscribe.<BR> <BR> Unsubscribe and Security information contact: infosec@xxxxxxxx<BR> For all FOI requests please contact: foi@xxxxxxxx<BR> All other Contacts are at http://www.derby.ac.uk/its/contacts/<BR> </body></html> --_000_28F33490C302424E98CC6DC2531B2048EFE6E13772MKTMBX01unive_--