Subject: [AUDITORY] Seeking advice on using ANF firing rate to reslove front-back confusion in sound localization model From: Qin Liu <000003c563e12bd3-dmarc-request@xxxxxxxx> Date: Tue, 25 Feb 2025 16:27:16 +0000--_000_834a57b299ae41a4bbd17cbd2530edb6epflch_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear auditory list, I am currently working on a project involving sound localization using firi= ng rates from auditory nerve fibers (ANFs) and the medial superior olive (M= SO). However, I have encountered an issue: I am unable to distinguish betwe= en front and back sound sources using MSO firing rates alone but only the l= eft-right. I am considering whether auditory nerve fiber (ANF) firing rates might prov= ide a solution, but I am uncertain how to utilize them effectively. For ins= tance, I have experimented with analyzing the positive gradients of ANF fir= ing rates but have not yet achieved meaningful results. Could anyone suggest an auditory metric derived from binaural signals, ANF = firing rates, or MSO that could classify front/back sources without relying= on HRTF template matching? Any insights or alternative approaches would be= invaluable to my work. Thank you in advance. I sincerely appreciate any guidance you can offer. Best regards, Qin Liu Doctoral Student Laboratory of Wave Engineering, =C9cole Polytechnique F=E9d=E9rale de Lausa= nne (EPFL) Email: qin.liu@xxxxxxxx --_000_834a57b299ae41a4bbd17cbd2530edb6epflch_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-= 1"> <style type=3D"text/css" style=3D"display:none;"><!-- P {margin-top:0;margi= n-bottom:0;} --></style> </head> <body dir=3D"ltr"> <div id=3D"divtagdefaultwrapper" dir=3D"ltr" style=3D"font-size: 12pt; colo= r: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif, EmojiFont, &q= uot;Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, &q= uot;Segoe UI Symbol", "Android Emoji", EmojiSymbols;"> <p>Dear auditory list,</p> <div><br> I am currently working on a project involving sound localization using firi= ng rates from auditory nerve fibers (ANFs) and the medial superior olive (M= SO). However, I have encountered an issue: I am unable to distinguish betwe= en front and back sound sources using MSO firing rates alone but only the left-right.<br> <br> I am considering whether auditory nerve fiber (ANF) firing rates might prov= ide a solution, but I am uncertain how to utilize them effectively. For ins= tance, I have experimented with analyzing the positive gradients of ANF fir= ing rates but have not yet achieved meaningful results.<br> <br> Could anyone suggest an auditory metric derived from binaural signals, ANF = firing rates, or MSO that could classify front/back sources without relying= on HRTF template matching? Any insights or alternative approaches would be= invaluable to my work.<br> <br> Thank you in advance. I sincerely appreciate any guidance you can offer.<br= > <br> Best regards,<br> <br> <b></b><strong style=3D"margin: 0px; padding: 0px; border: 0px; font-varian= t-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternat= es: inherit; font-variant-">Qin Liu</strong><span style=3D"color: rgba(0, 0= , 0, 0.9); font-family: "PingFang SC", -apple-system, BlinkMacSys= temFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", = Helvetica, Arial, "Hiragino Sans GB", "Microsoft YaHei UI&qu= ot;, "Microsoft YaHei", "Source Han Sans CN", sans-seri= f; font-size: 16px; background-color: rgb(252, 252, 252);"></span><br style= =3D"color: rgba(0, 0, 0, 0.9); font-family: "PingFang SC", -apple= -system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "He= lvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "M= icrosoft YaHei UI", "Microsoft YaHei", "Source Han Sans= CN", sans-serif; font-size: 16px; background-color: rgb(252, 252, 252= );"> <span style=3D"margin: 0px; padding: 0px; border: 0px; font-variant-numeric= : inherit; font-variant-east-asian: inherit; font-variant-alternates: inher= it; font-variant-">Doctoral Student</span><span style=3D"color: rgba(0, 0, = 0, 0.9); font-family: "PingFang SC", -apple-system, BlinkMacSyste= mFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", He= lvetica, Arial, "Hiragino Sans GB", "Microsoft YaHei UI"= ;, "Microsoft YaHei", "Source Han Sans CN", sans-serif;= font-size: 16px; background-color: rgb(252, 252, 252);"></span><br style= =3D"color: rgba(0, 0, 0, 0.9); font-family: "PingFang SC", -apple= -system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "He= lvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "M= icrosoft YaHei UI", "Microsoft YaHei", "Source Han Sans= CN", sans-serif; font-size: 16px; background-color: rgb(252, 252, 252= );"> <span style=3D"color: rgba(0, 0, 0, 0.9); font-family: "PingFang SC&qu= ot;, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubunt= u, "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB&quo= t;, "Microsoft YaHei UI", "Microsoft YaHei", "Sour= ce Han Sans CN", sans-serif; font-size: 16px; background-color: rgb(25= 2, 252, 252);">Laboratory of Wave Engineering, </span><span style=3D"color: rgba(0, 0, 0, 0.9);= font-family: "PingFang SC", -apple-system, BlinkMacSystemFont, &= quot;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica,= Arial, "Hiragino Sans GB", "Microsoft YaHei UI", "= ;Microsoft YaHei", "Source Han Sans CN", sans-serif; font-si= ze: 16px; background-color: rgb(252, 252, 252);">=C9cole Polytechnique F=E9d=E9rale de Lausanne (EPFL)</span><br style=3D"color: rg= ba(0, 0, 0, 0.9); font-family: "PingFang SC", -apple-system, Blin= kMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue&= quot;, Helvetica, Arial, "Hiragino Sans GB", "Microsoft YaHe= i UI", "Microsoft YaHei", "Source Han Sans CN", sa= ns-serif; font-size: 16px; background-color: rgb(252, 252, 252);"> <span style=3D"color: rgba(0, 0, 0, 0.9); font-family: "PingFang SC&qu= ot;, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubunt= u, "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB&quo= t;, "Microsoft YaHei UI", "Microsoft YaHei", "Sour= ce Han Sans CN", sans-serif; font-size: 16px; background-color: rgb(25= 2, 252, 252);">Email: qin.liu@xxxxxxxx</span></div> <br> <br> <p></p> </div> </body> </html> --_000_834a57b299ae41a4bbd17cbd2530edb6epflch_--