Arbitrarily adjustable method and device for changing phoneme naturally

A voice and natural technology, applied in speech synthesis, speech analysis, instruments, etc., can solve the problems of not being able to change into anyone's voice at will, having a machine smell, and unnatural voice

Inactive Publication Date: 2014-07-02
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the existing voice-changing methods, such as unnatural, machine-smelling, inability to change into any human voice at will, and provide a method and device for natural voice-changing that can be adjusted arbitrarily. The specific technical scheme is as follows

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  • Arbitrarily adjustable method and device for changing phoneme naturally
  • Arbitrarily adjustable method and device for changing phoneme naturally
  • Arbitrarily adjustable method and device for changing phoneme naturally

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Embodiment Construction

[0049] The specific embodiment of the present invention (the specific structure of the device and the working steps of the device of the present invention) will be further described below in conjunction with the accompanying drawings, but the implementation of the present invention is not limited thereto.

[0050] The device in this embodiment is as figure 1 As shown, it is divided into power supply module, input and output module, interface module, control module and processing module. Wherein, the control module is connected with the processing module and the input and output module, and is mainly responsible for inputting external parameters to the processing module and controlling the device to start and stop working. The input and output module is connected with the processing module, and its function is to input the excitation signal to the processing module and output the sound signal after the sound change, and to perform mutual conversion of digital / analog signals bef...

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Abstract

The invention discloses an arbitrarily adjustable method and device for changing phoneme naturally. The method comprises the steps of: modeling a voice signal in a sound channel; then obtaining a pronouncing system model, that is, a model of the sound channel; after that, changing the model of the sound channel; and finally restoring the voice signal in a new sound channel model, wherein the newly output voice signal is a signal after the phoneme change. The device comprises a power source model, an input and output module, a control module and a processing module, wherein the control module sends a parameter to the processing module and controls the system to start and stop operating; the input and output module inputs a sound signal, converts the sound signal to a digital signal and sends the digital signal to the processing module; the processing module processes the signal based on the input parameter to form a phoneme changing signal, then sends the phoneme changing signal to the input and output module and then converts the signal to an analogue signal to be output by a sound box. According to the invention, the signal after a phoneme change can have natural sound effect and can be adjusted arbitrarily. The device disclosed by the invention has the advantages of being simple, easy to realize, low in equipment cost and convenient to use.

Description

technical field [0001] The invention relates to a speech signal processing technology, in particular to a method and a device for modeling a speech signal in a sound channel, changing the model of the sound channel, and obtaining a sound-changing signal. Background technique [0002] Using the method of signal processing to change the tone and timbre of the speech signal, to realize the voice change, and even the mutual transformation of male and female voices, is not only an important theoretical research content of speech signal processing, but also has a strong application value. There is a big difference in the frequency range of male and female voices. The frequency range of male voice is about 80-7000HZ, while the frequency range of female voice is about 150-11000HZ, which is almost twice as high as that of male voice. If the mutual conversion of male and female voices is to be realized, then the frequency of the voice signal must be changed to increase or decrease a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L13/02G10L19/00G10L13/033
Inventor 宁更新刘元庆韦岗杨萃
Owner SOUTH CHINA UNIV OF TECH
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