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Grad MuE students Jon Boley and
Neri Osmanovic are active members of
the MPEG audio committee. The audio committee of MPEG (Motion Picture
Experts Group) has standardized various technologies for the coding of
digital audio including mp3 and AAC. Most recently, MPEG has been
working to standardize a protocol for spatial audio coding. Several
companies have proposed algorithms which encode a surround-sound
signal as either a mono or stereo file with side information. This
side information is based on perceptual location cues and is used to
extract spatial information and expand the encoded mono or stereo
sound to surround sound. The University of Miami, represented by
Jon
and Neri, volunteered to conduct listening tests to help determine
which algorithm sounds best. The results of these listening tests
will be combined with results of listening tests at 6 other locations
around the world and used to decide which coder should become the
basis for a standardized surround sound coder.
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