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Pronunciation quality evaluating method for language learning machine

A quality evaluation and learning machine technology, applied in speech analysis, speech recognition, instruments, etc., can solve problems such as lack of teachers, lack of learners' ability to pronounce, and inability to complete tasks, so as to improve accuracy and robustness, The effect of light weight and low cost

Inactive Publication Date: 2006-04-26
TSINGHUA UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional teacher-centered language learning, due to the lack of teachers, this task cannot be completed
However, the existing language learning machines do not have the ability to evaluate learners' pronunciation.

Method used

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  • Pronunciation quality evaluating method for language learning machine
  • Pronunciation quality evaluating method for language learning machine
  • Pronunciation quality evaluating method for language learning machine

Examples

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Embodiment Construction

[0051]A kind of pronunciation quality evaluation method embodiment that is used for language learning machine that the present invention proposes is described in detail as follows in conjunction with each figure:

[0052] The overall process of the embodiment of the method of the present invention is as follows figure 1 Shown, be divided into: A, the speech feature extraction that is used for training; The training of B, standard pronunciation model; The generation of C, standard pronunciation network (above each step can utilize computer to finish in advance); D, speech endpoint detection; E, Speech feature extraction for evaluation; F, optimal path search; G, calculation and output of pronunciation quality scores (the above steps are completed using an embedded platform). Examples of each step are detailed below.

[0053] A. Speech feature extraction for training:

[0054] (1) Pre-establish a training database that includes a large amount of English reading voices (the con...

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Abstract

The invention discloses a pronunciation quality evaluation method of language study machine in the computer subsidiary language study and phonetic technique domain, which is characterized by the following: extracting exercise phonetic feature; exercising standard pronunciation model; forming standard pronunciation network; detecting phonetic end; extracting evaluation phonetic feature; searching optimum path; calculating the mark of pronunciation quality. The method displays objective and stable evaluation, which constitutes imbedded English study system and mutual human-machine education and oral English self-detection.

Description

technical field [0001] The invention belongs to the field of computer-aided language learning and speech technology, and in particular relates to a pronunciation quality evaluation method realized by adopting 16-bit and above digital signal processing chips. Background technique [0002] In recent years, embedded language learning products have developed rapidly at home and abroad. In the early days, it was mainly a repeater. It is an analog tape recorder with a device that can digitally store a short section of speech. The current mainstream language learning machines on the market are the second-generation products using digital signal processing chip (DSP, Digital Signal Processing) technology. The hardware system generally includes a microcontroller (Micro Control Unit, MCU), digital signal processing chip (DSP), multimedia digital signal codec (CODEC), ROM, SRAM, flash memory (Flash Memory), universal serial bus ( USB), keyboard and liquid crystal display (Liquid Crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/02G10L15/07G10L15/08
Inventor 梁维谦董明丁玉国刘润生
Owner TSINGHUA UNIV
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