Frequency dependency of sound localization (Laurie Heller )

Subject: Frequency dependency of sound localization From: Laurie Heller <hellerl@xxxxxxxx> Date: Sun, 6 Apr 2014 09:44:53 -0400 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY> --Apple-Mail=_E52E8016-07C7-4A13-B2CB-9E7AE7C65434 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Dear Jungfeng, Axel, and list: There is also a 2010 JASA paper on the relative weights of ITDs and ILDs = as a function of frequency. That approach could be expanded to = incorporate vertical cues. Heller, L.M., and Richards, V.M. (2010). Binaural interference in = lateralization thresholds for interaural time and level differences. = Journal of the Acoustical Society of America, 128, 310-320. Best regards, Laurie Heller Carnegie Mellon University >=20 > Dear Jungfeng, Dear list, >=20 > we are currently working on spectral weighting of spatial cues. You = might > be interested in some publications I read: >=20 >=20 > -Stern, M., & Zeiberg, S. (1988). Lateralization of complex binaural > stimuli: A weighted-image model. *Journal of the Acoustical Society of > America*, *1*, 156=3DE2=3D80=3D93165. >=20 > which is partly based on Raatgevers doctoral dissertation from 1980. >=20 > -Macpherson, E. A., & Middlebrooks, J. C. (2002). Listener weighting = of > cues for lateral angle: The duplex theory of sound localization = revisited. =3D > *The > Journal of the Acoustical Society of America*, *111*(5), 2219. > doi:10.1121/1.1471898 >=20 > -Le Goff, N., Buchholz, J. M., & Dau, T. (2013). SPECTRAL INTEGRATION = OF > INTERAURAL TIME DIFFERENCES IN AUDITORY LOCALIZATION. *International > Congress on Acoustics*. Montr=3DC3=3DA9al. (Poster) >=20 > -Buell, T. N., & Hafter, E. R. (1991). Combination of binaural = information > across frequency bands. *The Journal of the Acoustical Society of = America*, > *90*(4 Pt 1), 1894=3DE2=3D80=3D93900. >=20 > Our own current work is still in an early stage and not published yet. = If > you need any further information do not hesitate to contact me. >=20 >=20 > Best, > Axel Ahrens > Technical University of Denmark >=20 >=20 > 2014-04-03 11:03 GMT+02:00 Li Junfeng <junfeng@xxxxxxxx>: >=20 >> Dear all, >>=20 >>=20 >> As all of you may know, human sound localization is a quite complex >> procedure and highly dependent on the ITD, ILD, spectral cues and = others. >> All these cues are encoded in HRTF. Many previous studies have shown = that >> for horizontal sound localization, ITD play a important role in the = low >> frequencies and ILD is dominant cue in the high frequencies; for = vertical >> sound localization, spectral cues in the high frequencies are = normally >> important. Thess are already known knowledge. >>=20 >> =46rom the previous research results, I beleive that different = frequencies >> should contribute differently to horizontal and vertical sound >> localization. Furthermore, I am now wondering how we can quantify = this >> difference, that is, is there a quantitative way to describe the = differen=3D > t >> contribution of different frequencies to sound localization. (As you = may >> know, in speech perception field, the band-importance functions = quantify >> the contribution of different frequencies to speech intelligibility). = I a=3D > m >> also looking for the frequency/band-imporance functions which = describe th=3D > e >> contribution of different frequencies to human sound localization. >>=20 >> Does anyone know some work on this research to recommend or some = ideas to >> share? >>=20 >> I would like to appreciate any discussions and references very much. >>=20 >> Thanks a lot. >>=20 >> Best regards, >> Junfeng >>=20 >=20 --Apple-Mail=_E52E8016-07C7-4A13-B2CB-9E7AE7C65434 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html = charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Dear = Jungfeng, Axel, and list:<div>There is also a 2010 JASA paper on the = relative weights of ITDs and ILDs as a function of frequency. That = approach could be expanded to incorporate vertical cues.</div><div>Heller, L.M., and Richards, V.M. (2010). Binaural interference in lateralization thresholds for interaural time and level differences. Journal of the Acoustical Society of = America, 128, = 310-320.</div><div>Best = regards,</div><div>Laurie = Heller</div><div>Carnegie Mellon = University</div><div> </div><div> <div><blockquote type=3D"cite"> Dear Jungfeng, Dear = list, we are currently working on spectral weighting of spatial = cues. You might be interested in some publications I = read: -Stern, M., & Zeiberg, S. (1988). Lateralization of = complex binaural stimuli: A weighted-image model. *Journal of the = Acoustical Society of America*, *1*, 156=3DE2=3D80=3D93165. whic= h is partly based on Raatgevers doctoral dissertation from = 1980. -Macpherson, E. A., & Middlebrooks, J. C. (2002). = Listener weighting of cues for lateral angle: The duplex theory of = sound localization revisited. =3D *The Journal of the Acoustical = Society of America*, *111*(5), 2219. doi:10.1121/1.1471898 -Le = Goff, N., Buchholz, J. M., & Dau, T. (2013). SPECTRAL INTEGRATION = OF INTERAURAL TIME DIFFERENCES IN AUDITORY LOCALIZATION. = *International Congress on Acoustics*. Montr=3DC3=3DA9al. = (Poster) -Buell, T. N., & Hafter, E. R. (1991). Combination = of binaural information across frequency bands. *The Journal of the = Acoustical Society of America*, *90*(4 Pt 1), = 1894=3DE2=3D80=3D93900. Our own current work is still in an early = stage and not published yet. If you need any further information do = not hesitate to contact me. Best, Axel Ahrens Technical = University of Denmark 2014-04-03 11:03 GMT+02:00 Li Junfeng = <<a = href=3D"mailto:junfeng@xxxxxxxx">junfeng@xxxxxxxx</a>>: <b= lockquote type=3D"cite">Dear all, As all of you may know, = human sound localization is a quite complex procedure and highly = dependent on the ITD, ILD, spectral cues and others. All these cues = are encoded in HRTF. Many previous studies have shown that for = horizontal sound localization, ITD play a important role in the = low frequencies and ILD is dominant cue in the high frequencies; for = vertical sound localization, spectral cues in the high frequencies = are normally important. Thess are already known = knowledge. =46rom the previous research results, I beleive that = different frequencies should contribute differently to horizontal and = vertical sound localization. Furthermore, I am now wondering how we = can quantify this difference, that is, is there a quantitative way to = describe the differen=3D </blockquote>t <blockquote = type=3D"cite">contribution of different frequencies to sound = localization. (As you may know, in speech perception field, the = band-importance functions quantify the contribution of different = frequencies to speech intelligibility). I = a=3D </blockquote>m <blockquote type=3D"cite">also looking for the = frequency/band-imporance functions which describe = th=3D </blockquote>e <blockquote type=3D"cite">contribution of = different frequencies to human sound localization. Does anyone = know some work on this research to recommend or some ideas = to share? I would like to appreciate any discussions and = references very much. Thanks a lot. Best = regards, Junfeng </blockquote> </blockquote></div> </div><= /body></html>= --Apple-Mail=_E52E8016-07C7-4A13-B2CB-9E7AE7C65434--

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