Abnormity detection method and device for voice data

An anomaly detection and voice data technology, applied in the direction of line monitoring circuit, etc., can solve the problems of unsatisfactory accuracy of anomaly detection results, unavoidable call anomalies, detection of time domain detection methods, etc.

Inactive Publication Date: 2019-04-02
HUAWEI DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although various mobile phone manufacturers have also developed some abnormal voice detection algorithms, the existing voice detection technology is aimed at detecting the time-domain signal of voice. This time-domain detection method directly performs amplitude, activity, and The accuracy of anomaly detection results is not ideal.
[0004] However, the inventors of the present application have found that in the actual call process, there are scenarios where the time-domain signal in the voice data is normal but the frequency-domain signal is abnormal, which will lead to abnormal problems such as silence or intermittent during the call, but Such voice data with abnormal frequency domain signals cannot be detected by the existing time domain detection method, and thus cannot avoid abnormal calls caused by abnormal frequency domain signals

Method used

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  • Abnormity detection method and device for voice data

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Embodiment Construction

[0044] Embodiments of the present application are described below in conjunction with the accompanying drawings.

[0045] When a user makes a call using a mobile phone or a landline or other communication device, there are some abnormal situations, such as a single failure of a microphone (MIC), a board-level connection failure, a user failure, etc., wherein the single failure of the MIC It means that foreign matter enters the diaphragm of the MIC monomer of the communication device and causes local adhesion of the diaphragm. The board-level connection fault refers to an instantaneous short circuit in the audio channel. The operation causes the finger to block the MIC hole. During a call, when one or more of these faults occur, the time domain signal in the voice data may be normal but the frequency domain signal is abnormal, and the abnormal frequency domain signal may cause silent or intermittent calls during the call.

[0046] It can be seen that in the actual call process...

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Abstract

The invention discloses an abnormity detection method and device for voice data. The abnormity detection method comprises the steps that firstly target voice data transmitted through an uplink call path is acquired; the normal voice data includes a large portion of low-frequency energy and a small portion of high-frequency energy, so that whether the high-frequency energy in the target voice datais less than the high-frequency energy in the normal voice data or not can be judged through analyzing the size of the low-frequency energy or high-frequency energy in the target voice data; and whenthe judgment result is yes, it indicates that the high-frequency energy in the target voice data is lost or truncated, so that the target voice data can be determined to be abnormal.

Description

technical field [0001] The present application relates to the field of voice technology, in particular to a method and device for detecting abnormality of voice data. Background technique [0002] In the daily application of mobile phones, the voice call function is one of the basic applications of mobile phones, and the quality of voice calls is directly related to the user's experience of using the mobile phone. During a voice call, the voice data collected from the local mobile phone is sent to the opposite mobile phone after sound processing, which is called the uplink communication channel; on the contrary, the voice data received by the local mobile phone from the opposite mobile phone is played out through the speaker or earpiece , called the downlink channel. [0003] At present, various mobile phone manufacturers and open source organizations are mainly developing algorithms for audio processing, and do not pay much attention to the detection of abnormal audio effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/82
Inventor 杨霖韩晓尹朝阳苏俊峰王建鹏高骏鹏
Owner HUAWEI DEVICE CO LTD
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