Dolby Laboratories Licensing Corporation

Dolby International Ab

Christophe Chabanne

Nicolas R Tsingos

Charles Quito Robinson

Alan Jeffrey Seefeldt

Brett Graham Crockett

C Phillip Brown

Sripal S Mehta

Joshua Brandon Lando

Stewart Murrie

Brad Basler

Spencer Hooks

S Spencer Hooks

Mark Tuffy

David S McGrath

Rhonda J Wilson

Toni Hirvonen

Patrick Griffis

Patrick Turnmire

Alan J Seefeldt

Brett G Crockett

Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content.

System and method for adaptive audio signal generation, coding and rendering

Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

Methods, apparatus and systems for audio reproduction

Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.

System for rendering and playback of object based audio in various listening environments

This invention relates to the field of multichannel audio. More particularly, the invention relates to a method for the provision of audio channels suitable for application to loudspeakers located above conventional front loudspeakers.

Enhancing the reproduction of multiple audio channels

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Carpentras, France

Christophe Chabanne