Patents Examined by L. Grier
  • Patent number: 6694033
    Abstract: Immersive environments for teleconferencing, collaborative shared spaces and entertainment require spatial audio. Such environments may have non-ideal sound reproduction conditions (loudspeaker positioning, listener placement or listening room geometry) where wavefront-synthesis techniques, such as ambisonics, will not give listeners the correct audio spatialization. A method disclosed for generating a sound field from a spatialized original audio signal, wherein the original signal is configured to produce an optimal sound percept at one predetermined ideal location. A plurality of output signal components are generated, each for reproduction by one of an array of loudspeakers. Antiphase output components are attenuated such that their contribution to the spatial sound percept is reduced for locations other than the predetermined ideal location.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: February 17, 2004
    Assignee: British Telecommunications public limited company
    Inventors: Andrew Rimell, Michael Peter Hollier