Subject: Re: Mouth directivity (was head directivity) From: Hacihabiboglu H Dr <H.Hacihabiboglu(at)SURREY.AC.UK> Date: Wed, 23 Nov 2005 10:15:30 +0000Zoltan, I guess you're trying to refer to 'mouth directivity'. When you mention "head directivity" instead, most people would consider the head as a probe (in the sense that a microphone is), and not a sound source. The confusion is all about the wording I suppose. ;) Having understood the question now, unfortunately there's not a great many number of articles (at least that I know) on mouth directivity. So it may be a bit hard for you to find detailed information. The only example that I came across is Jyri Huopaniemi's PhD thesis which you can get from: http://www.acoustics.hut.fi/publications/files/theses/huopaniemi_dt.pdf Please also see the following thread from the AUDITORY archives as this question was brought forward a while ago in the list: http://www.auditory.org/mhonarc/2005/msg00429.html It is possible to carry out the measurements yourself using the HEAD Acoustics Head-Torso-Mouth simulator, but I doubt that the data that you can obtain from there would resemble the actual directivity of the mouth as the simulator has a rather simple mouth model. Best, Huseyin _____________________________________________ Dr Huseyin Hacihabiboglu Research Fellow I-Lab / CCSR University of Surrey, Guildford GU2 7XH Surrey, United Kingdom Tel: +44 1483 683435 Fax: +44 1483 686011 e-mail: h.hacihabiboglu(at)surrey.ac.uk > Date: Tue, 22 Nov 2005 11:43:30 +0100 > From: Zoltan Fodroczi <fodroczi(at)ITK.PPKE.HU> > Subject: Re: head directivity data > > Dear Members, > > Probably, I managed to purely express myself :) > > HRTF, if I'm not mistaken is the transfer function of sound from an > external source that reach the eardrum. Using "head directivity function", > I tried to refer the case when sound (radiating from the mouth) energy > varies around the head. How should I have had to refer it correltly? > > Regards, > Zoltan