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Echo check and monitor

A technology of echo, voice communication, applied in the direction of monitoring/monitoring/test arrangement, transmission monitoring, data exchange network, etc., can solve the problem of impossible to prevent dissatisfied customers, etc.

Inactive Publication Date: 2004-07-07
AVAYA TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the echo rises to the level of user or customer complaints, then it will be too late to prevent unsatisfied customers

Method used

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  • Echo check and monitor
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Embodiment Construction

[0022] The present invention is directed to echo detection in speech communication systems in use.

[0023] figure 1 A communication system 100 suitable for use with an embodiment of the present invention is described. Generally, the communication system 100 includes a communication network 104 , a first communication device 108 and a second communication device 112 . Communications network 104 may include one or more networks of different forms. Communication network 104 may include, for example, the public switched telephone network. According to another embodiment of the present invention, communication network 104 includes a packet data network over which voice communications are sent according to telephony over Internet Protocol. The communication devices 108, 112 may include any type of communication device suitable for use in connection with voice communications. Thus, examples of communication devices 108, 112 include telephones, softphones, and wireless voice comm...

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Abstract

Echo detection and monitoring systems and methods are provided. According to the invention, the outgoing and incoming voice bearer channels of a voice communication are monitored. The outgoing and incoming signals are time aligned, and measures are then taken to determine whether echo is present in the signal. In accordance with an embodiment of the present invention, the outgoing signal is fed through an adaptive filter.

Description

technical field [0001] The present invention is directed to echo detection in speech communication systems. In particular, the present invention relates to the detection of echoes in practical speech communication systems. Background technique [0002] The presence of echoes is a known problem for voice communication networks. This echo can be caused by mixing imbalance conditions inside the communication hardware. In addition, acoustic feedback may also cause echoes. Whether the echo is perceptible to the user is usually determined based on the signal level of the echo return and the time offset the echo return produces relative to the original signal. The use of packet data networks exacerbates the echo problem in voice communications. In particular, the increased transmission delay experienced by users in conjunction with packet data networks may make echoes more noticeable. [0003] In order to detect the presence of echoes in a communication network, devices that u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/00H04B3/23
CPCH04B3/23H04B3/46H04B3/04
Inventor 塞门·戴尼欧·柏兰德詹姆斯·D·斯克勒德苏布拉马尼安·西德哈兰迈克·威廉·马森詹姆斯·阿兰·库克
Owner AVAYA TECH LLC