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Systems and methods for audio signal processing

Inactive Publication Date: 2013-10-24
QUALCOMM INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes an apparatus for detecting speech activity and processing it to improve its quality. The apparatus can obtain an audio signal and perform background noise reduction, pitch adjustment, and other processing techniques to make speech easier to understand. The finished speech signal can then be restored to its original form through a process of voice activity detection and restoration. This technology can be used in a range of applications to improve speech quality.

Problems solved by technology

Consequently, a substantial amount of voice communication is taking place using portable audio sensing devices (e.g., smartphones, handsets and / or headsets) in environments where users are surrounded by other people, with the kind of noise content that is typically encountered where people tend to gather.

Method used

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  • Systems and methods for audio signal processing
  • Systems and methods for audio signal processing
  • Systems and methods for audio signal processing

Examples

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Embodiment Construction

[0056]The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunications associations that aims to define a globally applicable 3rd generation (3G) mobile phone specification. 3GPP Long Term Evolution (LTE) is a 3GPP project aimed at improving the Universal Mobile Telecommunications System (UMTS) mobile phone standard. The 3GPP may define specifications for the next generation of mobile networks, mobile systems and mobile devices.

[0057]Some communication devices (e.g., access terminals, client devices, client stations, etc.) may wirelessly communicate with other communication devices. Some communication devices (e.g., wireless communication devices) may be referred to as mobile devices, mobile stations, subscriber stations, clients, client stations, user equipment (UEs), remote stations, access terminals, mobile terminals, terminals, user terminals, subscriber units, etc. Examples of communication devices include cellular telephone base stations or...

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Abstract

A method for restoring a processed speech signal by an electronic device is described. The method includes obtaining at least one audio signal. The method also includes performing bin-wise voice activity detection based on the at least one audio signal. The method further includes restoring the processed speech signal based on the bin-wise voice activity detection.

Description

RELATED APPLICATIONS[0001]This application is related to and claims priority from U.S. Provisional Patent Application Ser. No. 61 / 637,175 filed Apr. 23, 2012, for “DEVICES FOR APPROXIMATELY MATCHING OUTPUT LEVEL TO INPUT LEVEL AFTER NOISE SUPPRESSION,” from U.S. Provisional Patent Application Ser. No. 61 / 658,843 filed Jun. 12, 2012, for “DEVICES FOR PRESERVING AN AUDIO ENVELOPE,” from U.S. Provisional Patent Application Ser. No. 61 / 726,458 filed Nov. 14, 2012, for “SYSTEMS AND METHODS FOR SIGNAL LEVEL MATCHING” and from U.S. Provisional Patent Application Ser. No. 61 / 738,976 filed Dec. 18, 2012, for “DEVICES FOR SIGNAL LEVEL MATCHING.”TECHNICAL FIELD[0002]The present disclosure relates generally to communication systems. More specifically, the present disclosure relates to systems and methods for audio signal processing.BACKGROUND[0003]Communication systems are widely deployed to provide various types of communication content such as data, voice, video and so on. These systems may b...

Claims

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Application Information

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IPC IPC(8): G10L15/20
CPCG10L15/20G10L21/0208G10L21/0316G10L25/93G10L2021/02165
Inventor VISSER, ERIKKIM, LAE-HOONGUO, YINYINAM, JUHAN
Owner QUALCOMM INC
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