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Speech recognition interface unit and speed recognition method thereof

A technology of speech recognition and interface device, which is applied in speech recognition, speech analysis, instruments, etc., and can solve problems such as low effect

Inactive Publication Date: 2009-08-26
SAMSUNG ELECTRONICS CO LTD +1
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Problems solved by technology

So when applying this method to cases like Chinese-accent-English, the effect is usually lower than expected

Method used

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  • Speech recognition interface unit and speed recognition method thereof
  • Speech recognition interface unit and speed recognition method thereof
  • Speech recognition interface unit and speed recognition method thereof

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Embodiment Construction

[0032] It has been found through research that when a speaker speaks a foreign language, he or she will involuntarily use similar phonemes in the native language to replace the target language. That is to say, non-native language speech data is closely related not only to the target language but also to the native language. Therefore, the present invention proposes to interpolate the probability density functions of the target language and the native language to obtain an approximate distribution of the speech data of the non-native language. In other words, information in the speaker's native language is used to compensate for variations in the speaker's non-native language voice. However, not all information in the native language is useful to describe the distribution of a non-native language sound data. For example, some Gaussian components in the native language model are harmful to the description of non-native language speech data, because these Gaussian components are...

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Abstract

The invention provides a speech recognition interface unit and a speech recognition method thereof. The speech recognition interface unit comprises a model parameter estimator and a speech recognizer. The model parameter estimator extracts the acoustic information of a target language and a native language from an exterior speech database and acquires an acoustic model of the target language and an acoustic model of the native language through respective training; and then the module parameter estimator applies model self-adaptive technology respectively to the two acoustic models and obtains a background model through the application of gauss component consolidation technology. The speech recognizer respectively receives the background model inputted from the model parameter estimator and exteriorly inputted non-native language speech and recognizes the inputted non-native language speech based on the background model. The speech recognition interface unit and the speech recognition method can improve the recognition accuracy of the non-native language speech.

Description

technical field [0001] The present invention relates to a speech recognition interface device and a speech recognition method thereof, in particular to a speech recognition interface device and a speech recognition method suitable for non-native speaker speech retrieval tasks, through the device and method, the speech recognition engine can be improved Accuracy for voice data from non-native speakers. Background technique [0002] As a human-computer interaction interface, speech recognition can translate human speech into corresponding text through pattern recognition. Speech recognition technology has been developed to this day, and it already has the advantages of real-time input speed and accurate recognition accuracy. At present, mature products based on speech recognition have been widely used in PDA, mobile phone, MP3 player and GPS navigation equipment, which solves the problem of inconvenient operation of traditional keyboards on small embedded devices. In additio...

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Application Information

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IPC IPC(8): G10L15/00G10L15/08G10L15/14G10L15/06G10L15/26G10L15/28
Inventor 黄盈椿金南勋
Owner SAMSUNG ELECTRONICS CO LTD
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