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Method for generating metadata aiming at audio object

A technology for metadata and generating units, applied in speech analysis, electrical components, instruments, etc., to solve problems such as performance degradation and location changes

Inactive Publication Date: 2016-06-08
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When audio content is played through different playback settings, performance may be degraded due to mismatch between playback settings, such as the position of audio objects will change

Method used

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  • Method for generating metadata aiming at audio object
  • Method for generating metadata aiming at audio object
  • Method for generating metadata aiming at audio object

Examples

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Embodiment Construction

[0026] The principles of the invention will now be described with reference to various example embodiments illustrated in the drawings. It should be understood that the descriptions of these embodiments are only to enable those skilled in the art to better understand and further realize the present invention, and are not intended to limit the scope of the present invention in any way.

[0027] The present invention assumes that the incoming audio content is in a multi-channel format, such as 5.1, 7.1 or 7.1.4, where the number 4 indicates four overhead speakers. Several audio objects are easily processed by repeating the method as claimed in the present invention. It should be noted that in the present invention, the extraction of audio objects will not be mentioned, and all audio objects that meet the requirements listed below, etc. can be regarded as usable audio objects:

[0028] Audio objects extracted from ready-made content or automatically by using various audio extrac...

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Abstract

The embodiment of the invention relates to the audio object processing, discloses a method for processing audio contents. The audio contents comprise at least one audio object of a multichannel format. The method comprises following steps: generating metadata associated with the audio object, wherein the metadata comprise at least one of the estimated track of the audio object and the estimated perception magnitude of the audio object, the perception magnitude is the area perceived by the phantoms of the audio object generated by at least two transducers. The invention also discloses a corresponding system and a computer program product.

Description

technical field [0001] Embodiments of the present invention relate generally to audio content processing, and more particularly, to methods and systems for processing audio content in a multi-channel format. Background technique [0002] Audio content has traditionally been created and stored in a channel-based format. As used herein, the term "audio channel" or "channel" refers to audio content, typically having a predefined physical location. For example, binaural, surround 5.1, surround 7.1, etc. are all channel-based formats for audio content. Recently, with technological developments in the multimedia industry, three-dimensional (3D) movie and television content has become more and more popular in theaters and homes. In order to create more immersive sound fields and precisely control individual audio elements independent of specific playback speaker configurations, many conventional multi-channel systems have been extended to support new formats that include both cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S3/00
CPCG01S5/18G10L19/008H04S7/30H04S2400/11G11B27/10H04S7/301H04S7/302H04S2400/01H04S2420/01
Inventor 胡明清芦烈
Owner DOLBY LAB LICENSING CORP
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