Coherence-based audio coding and synthesis

Details Coherence-based audio coding and synthesis Coherence-based audio coding and synthesis

2006-02-28

2006-02-28

Tran, Sinh (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

C381S001000, C700S094000, C704S501000

Reexamination Certificate

active

07006636

ABSTRACT:
An auditory scene is synthesized from a mono audio signal by modifying, for each critical band, an auditory scene parameter (e.g., an inter-aural level difference (ILD) and/or an inter-aural time difference (ITD)) for each sub-band within the critical band, where the modification is based on an average estimated coherence for the critical band. The coherence-based modification produces auditory scenes having objects whose widths more accurately match the widths of the objects in the original input auditory scene.

REFERENCES:
patent: 5583962 (1996-12-01), Davis et al.
patent: 5682461 (1997-10-01), Silzle et al.
patent: 5703999 (1997-12-01), Herre et al.
patent: 5890125 (1999-03-01), Davis et al.
patent: 5930733 (1999-07-01), Park et al.
patent: 6236731 (2001-05-01), Brennan et al.
patent: 6473733 (2002-10-01), McArthur et al.
patent: 6763115 (2004-07-01), Kobayashi
patent: 1 376 538 (2004-01-01), None
patent: 03/090207 AI (2003-10-01), None
“3D Audio and Acoustic Environment Modeling” by William G. Gardner, HeadWize Technical Paper, Jan. 2001, pp. 1-11.
“Responding to One of Two Simultaneous Message”, by Walter Spleth et al., The Journal of the Acoustical Society of America, vol. 26, No. 3, May 1954, pp. 391-396.
“A Speech Corpus for Multitalker Communications Research”, by Robert S. Bolla, et al., J. Acoust. Soc., Am., vol. 107, No. 2, Feb. 2000, pp. 1065-1066.
“Synthesized Stereo Combined with Acoustic Echo Cancellation for Desktop Conferencing”, by Jacob Benesty et al., Bell Labs Technical Journal, Jul.-Sep. 1998, pp. 148-158.
“The Role of Perceived Spatial Separation in the Unmasking of Speech”, by Richard Freyman et al., J. Acoust. Soc., Am., vol. 106, No. 6, Dec. 1999, pp. 3578-3588.
“Binaural Cue Coding Applied to Stero and Multi-Channel Audio Compression,” by Christof Faller et al., Audio Engineering Society 112thConvention, Munich, Germany, vol. 112, No. 5574, May 10, 2002, pp. 1-9.

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