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Systems, methods, and apparatus for multichannel signal balancing

A multi-channel, channel technology, applied in signal processing, microphone signal combination, speech analysis, etc., can solve the problem that the noise reference is not directly available

Inactive Publication Date: 2011-05-04
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, a suitable noise reference may not be directly available in these cases, and it may be necessary to derive the noise reference indirectly

Method used

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  • Systems, methods, and apparatus for multichannel signal balancing
  • Systems, methods, and apparatus for multichannel signal balancing
  • Systems, methods, and apparatus for multichannel signal balancing

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Embodiment Construction

[0064] Unless clearly limited by its context, the term "signal" is used herein to indicate any of its ordinary meanings, including memory locations (or collections of memory locations) as expressed on wires, buses, or other transmission media status. Unless clearly limited by its context, the term "produce" is used herein to indicate any of its ordinary meanings, such as creating, calculating or otherwise generating. Unless explicitly limited by its context, the term "calculation" is used herein to indicate any of its ordinary meanings, such as calculation, evaluation, smoothing, and / or selection from multiple values. Unless clearly limited by its context, the term "obtained" is used to indicate any of its ordinary meanings, such as computing, deriving, receiving (for example, from an external device), and / or retrieving (for example, from a storage element array) . Where the term "comprising" is used in this description and appended claims, it does not exclude other elements ...

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Abstract

A method for processing a multichannel audio signal may be configured to control the amplitude of one channel of the signal relative to another based on the levels of the two channels. One such example uses a bias factor, which is based on a standard orientation of an audio sensing device relative to a directional acoustic information source, for amplitude control of information segments of the signal.

Description

[0001] Claim priority according to 35U.S.C.§119 [0002] This patent application claims that the title filed on June 2, 2008 and assigned to the assignee of this case is "SYSTEM AND METHOD FOR AUTOMATIC GAIN MATCHING OF A PAIR OF MICROPHONES) The priority of provisional application No. 61 / 058,132 (agent case number 081747P1). [0003] Reference to co-pending patent applications [0004] This patent application is related to the following co-pending U.S. patent applications: [0005] US Patent Application No. 12 / 197,924 entitled "Systems, Methods, and Apparatus for Signal Separation (SYSTEMS, METHODS, AND APPARATUS FOR SIGNAL SEPARATION)" filed on August 25, 2008 and assigned to the assignee in this case ;as well as [0006] The article titled "Systems, Methods, and Equipment for Multi-Microphone-Based Voice Enhancement (SYSTEMS, METHODS, AND APPARATUS FOR MULTI-MICROPHONE BASED SPEECH ENHANCEMENT)" filed on December 12, 2008 and transferred to the assignee of this case. US Patent App...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCG10L2021/02166H04R3/005H04R1/406H04R2430/25
Inventor 张国亮贤珍·Sr·朴
Owner QUALCOMM INC
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