Dolby Laboratories Licensing Corporation

Jurgen W Scharpf

Nicolas R Tsingos

Charles Quito Robinson

Remi Samuel Audfray

Improved tools for authoring and rendering audio reproduction data are provided. Some such authoring tools allow audio reproduction data to be generalized for a wide variety of reproduction environments. Audio reproduction data may be authored by creating metadata for audio objects. The metadata may be created with reference to speaker zones. During the rendering process, the audio reproduction data may be reproduced according to the reproduction speaker layout of a particular reproduction environment.

System and tools for enhanced 3D audio authoring and rendering

Audio signals are received. The audio signals include left and right surround channels. The audio signals are played back using far-field loudspeakers distributed around a space having a plurality of listener positions. The left and right surround channels are played back by a pair of far-field loudspeakers arranged at opposite sides of the space having the plurality of listener positions. An audio component coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers arranged at one of the listener positions. Associated systems, methods and computer program products are provided. Systems, methods and computer program products providing a bitstream comprising the audio signals and the audio component are also provided, as well as a computer-readable medium with data representing such audio content.

Generation and playback of near-field audio content

Audio signals () are received. The audio signals include left and right surround channels (). The audio signals are played back using far-field loudspeakers (--) distributed around a space () having a plurality of listener positions (). The left and right surround channels are played back by a pair of far-field loudspeakers () arranged at opposite sides of the space having the plurality of listener positions. An audio component () coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers () arranged at one of the listener positions. Associated systems (), methods () and computer program products are provided. Systems (), methods () and computer program products providing a bitstream () comprising the audio signals and the audio component are also provided, as well as a computer-readable medium with data () representing such audio content.

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San Anselmo, CA, United States of America

Jurgen W Scharpf