System and method for enhanced subjective stereo audio

Details System and method for enhanced subjective stereo audio System and method for enhanced subjective stereo audio

2008-01-01

2008-01-01

Harold, Jefferey (Department: 2614)

Telephonic communications

Echo cancellation or suppression

Using digital signal processing

C379S406080, C379S406140, C381S071700

Reexamination Certificate

active

11023586

ABSTRACT:
The present invention relates to an audio communication system and method with improved acoustic characteristics. The present invention utilizes the Haas effect to simulate a sound picture that gives a better subjective impression of stereo sound compared to the objective stereo image. It provides a system and a method for presenting the stereo image in an optimal way for an associated echo canceller without compromising with the subjective perception of stereo.

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Akira Nakagawa, et al., “Channel-number-compressed multi-channel acoustic echo canceller for high-presence teleconferencing system with large display”, Acoustics, Speech, and Signal Proceeding, 2000 ICASSP '00. Proceedings. 2000 IEEE International Conference., vol. 2, Jun. 6-9, 2000, pp. 813-816.
Jacob Benesty, et al. “Synthesized Stereo Combined with Acoustic Echo Cancellation for Desktop Conferencing”, Bell Labs Technical Journal, Jul.-Sep. 1998, pp. 148-158.

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