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Telephone recording data processing method and system

A technology of speech data and data, applied in speech analysis, speech recognition, instruments, etc., can solve the problems of low recognition efficiency and high error rate of automatic speech recognition system

Active Publication Date: 2014-02-12
IFLYTEK CO LTD
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Problems solved by technology

[0004] However, after the speech data processed by the above system enters the automatic speech recognition system, the automatic speech recognition system still has a high error rate and low recognition efficiency.

Method used

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  • Telephone recording data processing method and system
  • Telephone recording data processing method and system

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Embodiment Construction

[0100] The applicant of the present invention has found through research that in the prior art, the method for judging the recognizability of a speech signal by using the three indicators of the signal-to-noise ratio of the input signal, the probability of the input signal being speech, and the reliability of the system processing the input signal is not effective in complex There are still great limitations in the application scenario of telephone recording: this method cannot distinguish noise signals with high energy well, and does not take into account the abnormal voice conditions in the telephone recording scene, such as volume truncation, low volume, As a result, the error rate of subsequent speech recognition is relatively high, and the efficiency of speech recognition is reduced.

[0101] The invention discloses a method for processing telephone recording data, which can filter noise signals and abnormal voice signals with higher energy in source recording data, thereb...

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Abstract

The embodiment of the invention discloses a telephone recording data processing method. The method includes the steps of carrying out endpoint detection on input source recording data to obtain voiced data, judging whether the voiced data are invalid, abandoning the voiced data if the voiced data are invalid, otherwise, determining that the voiced data are voice data, judging whether the voice data are abnormal, if the answer is yes, abandoning the voice data, and otherwise, determining the voice data are valid voice data. According to the telephone recording data processing method, noise signals and abnormal voice signals with high energy are filtered out, effectiveness of data of a follow-up voice recognition system is guaranteed, the error rate of the follow-up voice recognition process is reduced, voice recognition efficiency is improved, and meanwhile, calculation is reduced due to the steps that the voice data are determined through endpoint detection. The embodiment of the invention further discloses a telephone recording data processing system.

Description

technical field [0001] The invention belongs to the technical field of speech recognition, in particular to a method and system for processing telephone recording data. Background technique [0002] With the continuous increase of people's demand for the mobility of information acquisition and the increasing popularity of telephone network, telephone voice service is increasingly penetrating into every aspect of people's life. At the same time, the subsequent processing of recording data for various telephone voice services, such as information mining, statistical analysis, service quality spot checks, keyword retrieval, etc., is becoming more and more urgent. It is obviously impractical to manually process a large amount of telephone recording data. These needs usually first convert the voice data into text data through the automatic speech recognition module, and then use text mining and retrieval technology for processing. If these phone recording data are not screened a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/08G10L15/20G10L15/02
Inventor 高建清王智国何婷婷胡国平胡郁刘庆峰
Owner IFLYTEK CO LTD
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