Voice change method and device based on specific target person voice change ratio parameter

A proportional parameter and target-oriented technology, applied in speech synthesis, speech analysis, instruments, etc., can solve problems such as unnatural voice change, heavy machine taste, and inability to target human voice changes

Inactive Publication Date: 2016-06-08
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 and deficiencies of the prior art, provide a method and device for voice change based on the target person's voice change ratio parameter, and overcome the existing voice change methods such as unnatural voice change, heavy machine taste, and inability to change voice. Disadvantages such as voice changes of specific target persons

Method used

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  • Voice change method and device based on specific target person voice change ratio parameter
  • Voice change method and device based on specific target person voice change ratio parameter
  • Voice change method and device based on specific target person voice change ratio parameter

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Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0068] The main device of the present invention is as figure 1 The display is divided into five parts: input module, output module, power module, control module and processing module. Wherein, the input module includes a microphone and an A / D converter, and the output module includes a speaker and a D / A converter. The digital processor in the control module and the processing module can be realized by DSP chip (for example: DSP chip of TMS320VC5509A of TI Company). The block diagram of the hardware structure of the device of the present invention is as figure 2 shown. The main workflow of the device of the present invention is as follows: image 3 shown.

[0069] The main flow chart of the inventive method is as Figure 4 As shown, the detailed steps are as follow...

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Abstract

The invention discloses a voice change method and device based on a specific target person voice change ratio parameter. The method comprises the steps of: obtaining the same content voice sample of a user and a specific target person; obtaining poles of a system respectively according to a sound channel modeling model, and deriving a voice change ratio parameter between the voices of the user and the specific target person; inputting a voice to be changed of the user, and moving poles according to the modeling model and the voice change ratio parameter, and obtaining a new pronouncing system model; and finally, utilizing the voice change ratio parameter to correct a pitch period excited by the voice to be changed, and restoring and outputting a changed voice signal in a new sound channel system. The voice change device has advantages that the feasibility is high, the installation is simple, the device cost is low, and the voice change device is applicable to various voice change application scenes.

Description

technical field [0001] The invention relates to the technical field of speech signal processing, in particular to a method and device for changing the voice of a voice based on a target person's voice changing ratio parameter. Background technique [0002] In the field of speech signal processing, speech voice change is an important branch, which has important academic research value and application value. At present, there are many methods of voice change. The traditional methods are basically based on the following three ideas: the first method is to process the voice signal in the time domain, change the frequency of the signal by scaling the length of the time domain, and then use the interpolation method to make The length of the new signal is consistent with the original signal (CN03137014.4); the second method is to process in the frequency domain, that is, to interpolate or spot-check the speech signal earlier, then do Fourier transform to it, and use Its frequency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L13/033G10L13/04G10L19/00
CPCG10L13/033G10L13/04G10L19/00
Inventor 宁更新钟英文杨文圣张军冯义志季飞
Owner SOUTH CHINA UNIV OF TECH
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