Subject: [AUDITORY] DFM MATLAB Toolbox - Potentially Useful for Perceptual Experiments From: David Romblom <david.romblom@xxxxxxxx> Date: Tue, 23 Jan 2018 05:55:19 +0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--_000_YQBPR0101MB2305F0478CB3EF18B2E4C0C0DDE30YQBPR0101MB2305_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm happy to announce a MATLAB toolbox that provides a physical approximati= on of late field reverberation for large loudspeaker arrays. There is also = a binaural adaption amenable to 3DOF head tracking. The algorithm uses a B-Format RIR and decorrelation filters to approximate = the spatial and frequency autocorrelation of an acoustic diffuse field. The= re are three JAES papers and a related JASA paper describing the formal det= ails. A major goal of this work was to provide the right balance of physica= l approximation and logistical ease such that it was useful to the perceptu= al research community. It does require another piece of software to model the direct path and earl= y reflections. The Toolbox outputs the decorrelation filters, you'll need t= o plumb that into your experiment. Filters are specific to your array and t= o the RIR's RT60. There is a simple binaural auralization utility. https://github.com/davidromblom/DiffuseFieldModeling<https://l.facebook.com= /l.php?u=3Dhttps%3A%2F%2Fgithub.com%2Fdavidromblom%2FDiffuseFieldModeling&h= =3DATPM6CzQTtB0WGytIVGvMCOn6TmFwOZYuZpIx8syOyVM8OCQGNP1XGMKcjHeBbMaGjb7VDC1= -Rg1tWI5UZyedpUipvgFuBj45LqvGQLpNrbn2LOLRtmw7EGW4AwfnjAXDZceh_uTcFFpFUTY2cK= 0iIJJHfdy6kry4QKDlfKq3n8r5DSrb9huJ_Ws64qJ4IRIQESKfP9iwstsjseMnwFPWXlN7zWy5L= eTRRroS7SiQKxJn3UnrnsMZm4QFefWd8Z6dWuoTvC2YutnDXigSKbmKFlmwWdXrA> http://www.aes.org/e-lib/browse.cfm?elib=3D19362<https://l.facebook.com/l.p= hp?u=3Dhttp%3A%2F%2Fwww.aes.org%2Fe-lib%2Fbrowse.cfm%3Felib%3D19362&h=3DATN= Naaw83sDCdJlQYa1NqJohkE_SN_g7Ddnv5VY1TAfZw4K5eQ0zneej5OXUNaG9rf6t1oVDlK1JXd= SX8vO-XeRQiNgbKc_VR4eDqWTxOhz0QR7oLcIoNI4vdETOuKp0LNfaJDf-MkjO-y37uetiNtLyB= 5AEC0iJuNMrWSSGjE381jzPFg9VqOVtRf1c4sRw9wzOnhMcUqxZEfopDGm8Mu3K-d9O5ntPupUM= chyWJJ7M6aHQB5To5KnNFb5CxUDViCTgjYHRts7wrzaPdruRAgmp0PYhog> --_000_YQBPR0101MB2305F0478CB3EF18B2E4C0C0DDE30YQBPR0101MB2305_ 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" style=3D"font-size:12pt;color:#000000;font= -family:Calibri,Helvetica,sans-serif;" dir=3D"ltr"> <p style=3D"margin-top:0;margin-bottom:0"></p> <p style=3D"margin-right: 0px; margin-bottom: 6px; margin-left: 0px; font-f= amily: "SF Optimized", system-ui, -apple-system, system-ui, "= ;.SFNSText-Regular", sans-serif; color: rgb(29, 33, 41); font-size: 14= px; letter-spacing: -0.12px;"> <span style=3D"letter-spacing: -0.12px;">I'm happy to announce a MATLAB too= lbox that provides a physical approximation of late field reverberation for= large loudspeaker arrays. There is also a binaural adaption amenable to 3D= OF head tracking.</span><br> </p> <p style=3D"margin: 6px 0px; font-family: "SF Optimized", system-= ui, -apple-system, system-ui, ".SFNSText-Regular", sans-serif; co= lor: rgb(29, 33, 41); font-size: 14px; letter-spacing: -0.12px;"> The algorithm uses a B-Format RIR and decorrelation filters to approximate = the spatial and frequency autocorrelation of an acoustic diffuse field. The= re are three JAES papers and a related JASA paper describing the forma= l details. A major goal of this work was to provide the right balance of physical approximation and logistical = ease such that it was useful to the perceptual research community.<span cla= ss=3D"text_exposed_show" style=3D"display: inline; font-family: inherit;"><= /span></p> <div class=3D"text_exposed_show" style=3D"display: inline; font-family: &qu= ot;SF Optimized", system-ui, -apple-system, system-ui, ".SFNSText= -Regular", sans-serif; color: rgb(29, 33, 41); font-size: 14px; letter= -spacing: -0.12px;"> <p style=3D"margin-right: 0px; margin-bottom: 6px; margin-left: 0px; font-f= amily: inherit;"> It does require another piece of software to model the direct path and earl= y reflections. The Toolbox outputs the decorrelation filters, you'll need t= o plumb that into your experiment. Filters are specific to your array and t= o the RIR's RT60. There is a simple binaural auralization utility.</p> <p style=3D"margin: 6px 0px; font-family: inherit;"><a href=3D"https://l.fa= cebook.com/l.php?u=3Dhttps%3A%2F%2Fgithub.com%2Fdavidromblom%2FDiffuseField= Modeling&h=3DATPM6CzQTtB0WGytIVGvMCOn6TmFwOZYuZpIx8syOyVM8OCQGNP1XGMKcj= HeBbMaGjb7VDC1-Rg1tWI5UZyedpUipvgFuBj45LqvGQLpNrbn2LOLRtmw7EGW4AwfnjAXDZceh= _uTcFFpFUTY2cK0iIJJHfdy6kry4QKDlfKq3n8r5DSrb9huJ_Ws64qJ4IRIQESKfP9iwstsjseM= nwFPWXlN7zWy5LeTRRroS7SiQKxJn3UnrnsMZm4QFefWd8Z6dWuoTvC2YutnDXigSKbmKFlmwWd= XrA" target=3D"_blank" data-ft=3D"{"tn":"-U"}" rel=3D"n= oopener nofollow" data-lynx-mode=3D"async" style=3D"color: rgb(54, 88, 153)= ; text-decoration-line: none; font-family: inherit;">https://github.com/dav= idromblom/DiffuseFieldModeling</a><br> <a href=3D"https://l.facebook.com/l.php?u=3Dhttp%3A%2F%2Fwww.aes.org%2Fe-li= b%2Fbrowse.cfm%3Felib%3D19362&h=3DATNNaaw83sDCdJlQYa1NqJohkE_SN_g7Ddnv5= VY1TAfZw4K5eQ0zneej5OXUNaG9rf6t1oVDlK1JXdSX8vO-XeRQiNgbKc_VR4eDqWTxOhz0QR7o= LcIoNI4vdETOuKp0LNfaJDf-MkjO-y37uetiNtLyB5AEC0iJuNMrWSSGjE381jzPFg9VqOVtRf1= c4sRw9wzOnhMcUqxZEfopDGm8Mu3K-d9O5ntPupUMchyWJJ7M6aHQB5To5KnNFb5CxUDViCTgjY= HRts7wrzaPdruRAgmp0PYhog" target=3D"_blank" data-ft=3D"{"tn":&quo= t;-U"}" rel=3D"noopener nofollow" data-lynx-mode=3D"async" style=3D"co= lor: rgb(54, 88, 153); text-decoration-line: none; font-family: inherit;">h= ttp://www.aes.org/e-lib/browse.cfm?elib=3D19362</a></p> </div> <br> <p></p> </div> </body> </html> --_000_YQBPR0101MB2305F0478CB3EF18B2E4C0C0DDE30YQBPR0101MB2305_--