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Method and system for recognizing tone

A recognition method and technology for a recognition system, which are applied in the field of tone recognition methods and systems, can solve problems such as incorrect tone recognition, and achieve the effects of improving reliability and reducing incorrectly recognized tones.

Active Publication Date: 2011-10-12
创而新(北京)教育科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existing speech signal processing technology, the voicing cannot be reliably discriminated, and sometimes the pitch of the speech of the non-tone phoneme segment will also be detected, resulting in the wrong recognition of the tone

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  • Method and system for recognizing tone
  • Method and system for recognizing tone

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Experimental program
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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] In the learning system of tone language, the speech recognition of the speaker not only includes the recognition of the syllable structure, but also includes the recognition of the tone of the syllable. Such as image 3 Shown is a schematic flow chart of the first embodiment of the tone recognition method of the present invention. This embodiment includes the following steps:

[0029] Step 101, receiving a voice signal;

[0030] Step 102, performing spectrum analysis on the speech signal, and generating a speech sequence carrying time alignment information according to the reference text;

[0031] Step 103, extracting tone phonemes from the received speech signal according to the speech sequence;

[0032] Step 104. Determine the tone of the speech signal according to the tone phoneme.

[0033] In this embodim...

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PUM

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Abstract

The invention relates to a method for recognizing tone, which comprises the following steps: receiving a voice signal; performing spectral analysis on the voice signal, and generating a voice sequence carrying time alignment information according to a reference text; extracting a tone phoneme from the received voice signal according to the voice sequence; and determining the tone of the voice signal according to the tone phoneme. The invention also relates to a tone recognition system. The method uses the voice sequence carrying the time alignment information to accurately extract the tone phoneme and determine the tone of an input voice signal, thus the false recognition of the tone in the tone recognition is reduced effectively, the accurate recognition of the tone in a tone language isrealized, and the reliability of the tone recognition is improved.

Description

technical field [0001] The invention relates to the field of language recognition, in particular to a tone recognition method and system. Background technique [0002] About 70% of the languages ​​in the world are tone-type languages, that is, tone languages ​​(Tone Language or Tonal Language), such as: Chinese, Southeast Asian languages, Japanese, Swedish and Norwegian. In these languages, a syllable is the smallest unit of pronunciation, and each syllable is composed of consonants, vowels and tones. A phoneme is the smallest unit of speech, which is analyzed from a syllable. The complete meaning of the tone refers to the circumflex of the syllable in the pronunciation process, that is, the tone conveys the meaning of the word with pitch, and different tones will lead to different meanings of syllables with the same consonant and vowel. [0003] For example, Chinese, as a typical tonal language, has four tones (five tones if soft tones are considered), which are Yinping (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L11/04G10L15/00G10L15/02G10L15/14
Inventor 许军张化云潘春雷陈炜
Owner 创而新(北京)教育科技有限公司