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Howling Detection in Conference System

A remote conference and control system technology, applied in the field of audio signal processing, can solve problems such as difficulties

Active Publication Date: 2021-10-01
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While some methods have proven successful in detecting and mitigating unintentionally generated howling, it has proven to be more difficult to address in teleconferencing scenarios

Method used

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  • Howling Detection in Conference System
  • Howling Detection in Conference System
  • Howling Detection in Conference System

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Embodiment Construction

[0042] The following description refers to certain implementations for the purpose of describing some of the innovative aspects of the disclosure and examples of contexts in which these innovative aspects may be practiced. However, the teachings herein can be applied in a variety of different ways. Furthermore, the described embodiments may be implemented in various hardware, software, firmware, etc. For example, aspects of the present application may be at least partially embodied in an apparatus, a system comprising one or more apparatuses, a method, a computer program product, and the like. Accordingly, aspects of the present application may take the form of hardware embodiments, software embodiments (including firmware, resident software, microcode, etc.), and / or embodiments combining both software and hardware aspects. These embodiments may be referred to herein as "circuits," "modules," or "engines." Some aspects of the present application may take the form of a comput...

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Abstract

The disclosed teleconferencing method involves detecting howling conditions during a teleconference involving two or more teleconferencing client locations and a teleconferencing server. The teleconferencing server is configured to provide a full-duplex audio connection between the teleconferencing client locations. The howling state is an acoustic feedback state involving two or more teleconferencing devices in a certain teleconferencing client location. Detecting the howling state involves an analysis of both the spectral and temporal characteristics of the teleconference audio data. The disclosed teleconferencing method involves determining which client location is causing the howling condition and involves mitigating the howling condition or sending a howling condition detection message.

Description

[0001] Cross References to Related Applications [0002] This application claims International Patent Application No. PCT / CN2017 / 104604, filed September 29, 2017, U.S. Provisional Application No. 62 / 575,701, filed October 23, 2017, and European Patent Application No. 17201011.8, filed November 10, 2017 , each of which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure relates to the processing of audio signals. In particular, the present disclosure relates to processing audio signals associated with teleconferencing or video conferencing. Background technique [0004] Acoustic feedback is a type of feedback that occurs when there is an acoustic loop between an audio input (eg, a microphone) and an audio output (eg, a speaker). For example, a signal received by a microphone may be amplified and reproduced by a speaker. The reproduced sound from the speaker may then be picked up again by the microphone, further amplified, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/02H04M9/08H04M3/56G10L25/48
CPCH04M3/568H04R3/02H04M9/08H04M2203/2094G10L25/48
Inventor 李凯D·古纳万邓峰房倩倩
Owner DOLBY LAB LICENSING CORP
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