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Projection-based audio object extraction from audio content

An audio and object technology, applied in the field of audio content processing, can solve problems such as incorrect position estimation

Active Publication Date: 2017-08-29
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the source separation technique is not used, the two objects will be considered as one object, which will make their position estimation incorrect

Method used

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  • Projection-based audio object extraction from audio content
  • Projection-based audio object extraction from audio content
  • Projection-based audio object extraction from audio content

Examples

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Embodiment Construction

[0019] The principles of example embodiments will now be described with reference to various example embodiments illustrated in the accompanying drawings. It should be understood that the descriptions of these embodiments are only for enabling those skilled in the art to better understand and further implement the example embodiments, and are not intended to limit the scope of the example embodiments disclosed herein in any way. It should also be understood that the terms "first", "second", etc. are used to refer to different objects and not to suggest any limitation on the order of the objects.

[0020] As mentioned above, traditional channel-based audio content is not adequate for various playback settings. Specifically, when the playback settings do not match the configuration of the mixer, the listening experience represented by the playback settings will be degraded. Furthermore, representing the audio content in terms of playback settings while preserving the artist's i...

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Abstract

A method is disclosed for audio object extraction from an audio content which includes identifying a first set of projection spaces including a first subset for a first channel and a second subset for a second channel of the plurality of channels. The method may further include determining a first set of correlations between the first and second channels, each of the first set of correlations corresponding to one of the first subset of projection spaces and one of the second subset of projection spaces. Still further, the method may include extracting an audio object from an audio signal of the first channel at least in part based on a first correlation among the first set of correlations and the projection space from the first subset corresponding to the first correlation, the first correlation being greater than a first predefined threshold. Corresponding system and computer program products are also disclosed.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Chinese Priority Application No. 201410814937.9, filed December 22, 2014, and U.S. Provisional Patent Application No. 62 / 108,254, filed January 27, 2015, both of which are incorporated by reference in their entirety combined here. technical field [0003] Example embodiments disclosed herein relate generally to audio content processing, and more particularly, to a method and system for extracting audio objects from audio content. Background technique [0004] Traditionally, audio content has been created and stored in a channel-based format. In channel-based formats, audio content is typically represented, stored, communicated, and distributed through the medium of channels. As used herein, the term "audio track" or "channel" refers to audio content that generally has a predefined physical location. For example, stereo, surround 5.1, surround 7.1, etc. are all channel-based format...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S5/00
CPCH04S5/00H04S2400/03H04S2400/11H03H2021/0034G06F18/2134G06F17/15H03H21/00
Inventor 胡明清芦烈陈联武
Owner DOLBY LAB LICENSING CORP