Dolby Laboratories Licensing Corporation

Dolby International Ab

Mark William Gerrard

Heiko Purnhagen

Dirk Jeroen Breebaart

David Matthew Cooper

Martin Wolters

Timothy Alan Port

Nicholas Luke Appleton

Michael William Mason

Mark David De Burgh

Winston Chi Wai Ng

Yanning Bai

Dirk Jeroen Breebart

Richard Han

Heiko Punrhagen

A method of encoding audio content comprises performing a content analysis of the audio content, generating classification information indicative of a content type of the audio content based on the content analysis, encoding the audio content and the classification information in a bitstream, and outputting the bitstream. A method of decoding audio content from a bitstream including audio content and classification information for the audio content, wherein the classification information is indicative of a content classification of the audio content, comprises receiving the bitstream, decoding the audio content and the classification information, and selecting, based on the classification information, a post processing mode for performing post processing of the decoded audio content. Selecting the post processing mode can involve calculating one or more control weights for post processing of the decoded audio content based on the classification information.

Methods, apparatus and systems for dual-ended media intelligence

Methods (), systems () and computer program products are provided. Location metadata () associated with an audio object is received (). The location metadata defines a position of the audio object in an audio scene. It is estimated (), based on the location metadata, whether the audio object includes dialog. A value representative of a result of the estimation is assigned () to an object type parameter (). In some example embodiments, audio objects are selected () based on values of their respective of object type parameters. In some example embodiments, at least one of the selected audio objects is submitted to dialog enhancement ().

Audio object classification based on location metadata

A method and a system for dialogue enhancement of an audio signal, comprising receiving (step S) the audio signal and a text content associated with dialogue occurring in the audio signal, generating (step S) parameterized synthesized speech from the text content, and applying (step S) dialogue enhancement to the audio signal based on the parameterized synthesized speech. With the invention text captions, subtitles, or other forms of text content included in an audio stream, can be used to significantly improve dialogue enhancement on the playback side.

Dialogue enhancement based on synthesized speech

A method of pre-processing audio for playback through an audio greeting card having at a speaker array of two or more speakers and an audio control circuit, by defining one or more device parameters associated with the greeting card, measuring an audio response from the greeting card when playing an original audio file, deriving correction gains to correct magnitude response characteristics of the audio response, deriving compressor threshold values to minimize level distortion of the audio response, deriving a virtualization transfer function from the one or more device parameters, and applying the correction gains, compressor threshold values, and the virtualization transfer function to generate an output audio file.

Pre-process correction and enhancement for immersive audio greeting card

A method of processing audio data for replay on a mobile device with a first speaker and a second speaker, wherein the audio data comprises a respective audio signal for each of the first and second speakers, includes: determining a device orientation of the mobile device; if the determined device orientation is vertical orientation, applying a first processing mode to the audio signals for the first and second speakers; and if the determined device orientation is horizontal orientation, applying a second processing mode to the audio signals for the first and second speakers. Applying the first processing mode involves: determining respective mono audio signals in at least two frequency bands based on the audio signals for the first and second speakers; in a first one of the at least two frequency bands, routing a larger portion of the respective mono audio signal to one of the first and second speakers; and in a second one of the at least two frequency bands, routing a larger portion of the respective mono audio signal to the other one of the first and second speakers. Applying the second processing mode involves applying cross-talk cancellation to the audio signals for the first and second speakers.

Methods, apparatus and systems for asymmetric speaker processing

Systems and methods are described for providing an immersive listening area for one or more listeners. To improve the immersive experience a rear sound bar is placed behind the listeners and the input channels of the rear sound bar receive customized processing to create a virtual rear sound stage. The virtual rear sound stage and a front sound stage created by a front sound bar, combine to create an overall sound stage to encompass the listeners, providing the listeners with an immersive listening experience.

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Balmain, Australia

Mark William Gerrard