I do understand that HOA can represent resolution of directivity in the mathematic domain better than FOA. But I am starting to suspect we are overworking something when we are talking of order 8 to 15? Is it realistic to even think of measuring individual HRTF response with that angle resolution? And is it even neccessary when we know the adaptability of the auditory system?
As stereo works good enough over 45 degrees with 2 speakers and correct psycho acoustic setup and a good recording are we not aiming for a overkill system? As a normal guy without training in listening for direction of sound sources I suspect I cannot really pinpoint many things in more than +-10 degrees without visual cues. I remember old discussion results about ideal number of loudspeakers for horizontal FOA replay being 6 speakers. My goal is to have a device that can play through headphones a stereo or FOA recording and give me a minimum experience of listening to a stereo system or FOA setup with out of head sound and a stable position of the soundstage. I am not certain this is relevant in this discussion thread as we probably have different views of the goals and the path to the goals. Bo-Erik On 28 Jan 2016 12:37, "Politis Archontis" <archontis.poli...@aalto.fi> wrote: > Hi Fons, > > _______________________________________ > From: Sursound [sursound-boun...@music.vt.edu] on behalf of Fons > Adriaensen [f...@linuxaudio.org] > Sent: 27 January 2016 23:58 > To: sursound@music.vt.edu > Subject: Re: [Sursound] Never do math in public, or my take on explaining > B-format to binaural > > > plus independent decorators/reverberators per HOA channel, > > with different decays at different frequencies, for the > > late part. The late part filters require a further tuning > > stage though, to match the ‘sinc’ like binaural-coherence > > of left and right ear signals in diffuse sound. I have > > found that this matching improves significantly > > externalisation, and sounds more natural. > > I'd be much interested to learn more about that... > > Ciao, > > -- > FA > ________________________________________ > > sure I can expand on that, is it ok if I contact you or send you some text > off-list? > > I am wondering though, as I understood, you are interested in the case of > converting to binaural other multichannel formats with dynamic > head-tracking. In this case since you have discrete sources you are > binauralizaing, with some added room effect, is there a reason to go > through a second order ambisonic system, instead of using directly HRTFs > with some interpolation, plus a binaural late reverb? Don't you blur > significantly (well, up to a second-order blurring) the spatial resolution > of the HRTFs, considering again that we need orders of 8-15 for fullband > reconstruction of HRTFs at mid and high frequencies? > > Regards, > Archontis > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20160128/90b55ecf/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
