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F.Myles
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    Spatial Sound... Stockhausen to Stanford
    An article on 3d Spatial Audio in The Atlantic. I thought this was a good time to bring up some additional information regarding the topic. Bound to raise some interest, as this topic is (and has been) a heavy area of research.
    If you have additional links and info please comment to this and include them as it is a rather large field of study and i'm sure there are many interesting institutions and persons pushing the limits.

    What Perfection Sounds Like
    From:
    The Atlantic
    "Spatial hearing in three dimensions depends on subtle differences in timing, sound level, and the shape of our heads and ears, among other factors. Binaural and even conventional stereo recording incorporates rich 3-D information. But “crosstalk” collapses the 3-D illusion: during playback, the left ear hears not only sound from the left speaker, but also some of the right-speaker sound, and the right ear likewise hears spillover sound from the left speaker.

    A technique called crosstalk cancellation—processing the audio signal so that the left ear hears sound from only the left speaker, and the right, from only the right—can reveal the inherent 3-D sound in stereo. But crosstalk cancellation has always introduced audible spectral coloration. It’s this problem, applied to two-speaker playback, that Choueiri says he’s licked. He wrote a fiendishly abstruse 24-page technical paper explaining his theoretical work, and then spent several years coding and designing his Pure Stereo filter.

    Manufacturers and producers sense enormous profits looming in 3-D audio for TV, cinema, and gaming. Compared with 3-D, the sales pitch goes, surround-sound systems are unwieldy and offer crude spatial definition. Princeton is now negotiating with various consumer companies to license Pure Stereo, and Choueiri also hopes to improve on hearing aids, which currently are not very good at pinpointing where sound is coming from."


    INFO:

    "3d" sound initiatives:
    CrossTalk Cancellation paper
    WaveField Synthesis
    WaveField Synthesis Paper
    Aleatoric music
    Surround Sound
    Ambisonics

    Some pioneers of the field:
    Karlheinz Stockhausen
    Max Matthews
    Curtis Roads
    Iannis Xenakis
    JoAnn Kuchera-Morin

    And persons doing interesting research in the field currently:
    Graham Wakefield
    Lance Putnam
    Matt Wright

    Spatial Sound Venues Past / Present:
    Stockhausen Spherical Concert Hall
    Phillips Pavillion
    Allosphere
    Audio in the UCSB CNSI AlloSphere

    A few places researching the subject:
    CCRMA @ Stanford
    CNMAT @ Berkeley
    MAT @ UCSB

    Osaka Dome by Stockhausen
    Image:






    Sat, Mar 12, 2011  Permanent link

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