Speech synthetic method based on rhythm character

A prosody feature and speech synthesis technology, which is applied in speech synthesis, speech analysis, instruments, etc., can solve the complex prosody model and prosody control, cannot meet the requirements of speech synthesis prosodic features and its prosody control, and cannot meet the requirements acceptable to users. degree, etc.

Inactive Publication Date: 2007-07-18
HEILONGJIANG UNIV
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Problems solved by technology

The first two speech synthesis methods will lead to relatively low naturalness of the synthesized speech output by the computer and the speech synthesis device, and the "machine smell" is too strong. This technology enters the market on a large scale
The reason is that speech synthesis and its prosody control have the following problems: ① The naturalness of continuous synthetic speech needs to be further improved; ② The text analysis process should be able to re

Method used

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  • Speech synthetic method based on rhythm character
  • Speech synthetic method based on rhythm character
  • Speech synthetic method based on rhythm character

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Experimental program
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Embodiment

[0115] 1. Text processing program

[0116] 1.1. Text regularization

[0117] In conjunction with Figures 2-5, the present invention processes the input text through a text regularization step, with the purpose of correcting information with special symbols such as dates, numbers, weather forecasts, and house numbers in the input text according to the correct reading method. Enter text to mark; for example: date "2000-12-12" is marked as "December 12, 2000", "minimum temperature at night -12°C" is marked as "minimum temperature at night -12°C", etc. The output of the text regularization device is a legal pronunciation character sequence, as shown in Table 1.

[0118] Table 1 Relationship between special symbols and input text

[0119]

character type

input character format

special symbol reading

Character order of legal pronunciation

List

date

2000-12-12

The first "-" is read as "year"

The second "-" is ...

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Abstract

A method for synthesizing voice based on rhythm character includes text processing program formed by text standardizing step, rhythm structure analysis step and language treatment step, synthetic element selecting program formed by element confirming step, matching step, pasting-up step, optimizing and screening step; voice synthesization processing program formed by base frequency outline generating step of phrase unit, base frequency outline generating step of syllable unit and intonation superposing step.

Description

(1) Technical field [0001] The invention relates to the technical field of speech signal processing, in particular to a speech synthesis method based on prosodic features in the speech synthesis technology. (2) Background technology [0002] The existing Chinese speech synthesis method is a word-to-sound conversion using a character as a segmentation unit, or a phrase-based text-to-speech conversion using a grammatical word as a segmentation unit. In fact, when people speak, they do not use words or grammatical words as the segmentation unit, but use prosodic words as the segmentation unit. The first two speech synthesis methods will lead to relatively low naturalness of the synthesized speech output by the computer and the speech synthesis device, and the "machine smell" is too strong. This technology has entered the market on a large scale. The reason is that speech synthesis and its prosody control have the following problems: ① The naturalness of continuous synthetic s...

Claims

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Application Information

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IPC IPC(8): G10L13/00G10L13/02G10L13/04G10L13/08
Inventor 张鹏王丽红
Owner HEILONGJIANG UNIV
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