Hi there, The two main mechanisms (which are certainly not the only ones!) for distance perception are the ratio of direct to reverberant sound and the pattern of early reflections. Both of these are captured with B format impulse responses but of course only for the given source/listener/room configuration You can edit the impulse response to some extent to change these or record multiple IR's and interpolate between them - but frankly it might be better to build models based on the recorded IR's and/or room plans and then then synthesise the IR's.
Dave On 3 May 2013 11:00, Iain Mott <m...@reverberant.com> wrote: > Hi list, I wonder if someone could clear up some doubts I have: > > Does an ambisonic impulse response recorded in a space, with microphone > and impulse source at specific locations, reproduce any distance cues > when convolved with an anechoic mono source and decoded ambisonically > over a speaker array, or just angular cues? > > I know that HRTF filters are recorded anecoically, so distance of the > impulse wouldn't matter, as i understand it. But what if impulses were > recorded at various angles and a particular distance in a live room? How > would one set of angular responses at a given distance compare with > another set made with the same angles but at a different distance? > > Thanks, > > Iain > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > -- As of 1st October 2012, I have retired from the University, so this disclaimer is redundant.... These are my own views and may or may not be shared by my employer Dave Malham Ex-Music Research Centre Department of Music The University of York Heslington York YO10 5DD UK 'Ambisonics - Component Imaging for Audio' -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130503/37036ec2/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound