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Singing voice conversion device and method thereof

A speech conversion and speech technology, applied in speech analysis, speech recognition, speech synthesis, etc., can solve problems such as simple technology

Active Publication Date: 2013-09-11
SHANGHAI GUOKE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 2. Disguised voice personalization in secure communication
[0012] Although some speech conversion can be applied to the speech produced by humans when singing, the technology is relatively simple

Method used

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  • Singing voice conversion device and method thereof
  • Singing voice conversion device and method thereof
  • Singing voice conversion device and method thereof

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Embodiment Construction

[0033] Figure 1a An embodiment of the singing speech conversion device of the present invention is provided, which includes a sample speech library 11, a recording module 12, a fundamental frequency extraction module 13, a note segmentation module 14, a fundamental frequency conversion module 15 and a splicing module 16.

[0034] The sample speech bank 11 stores a plurality of sample speeches, and records the fundamental frequency value and duration of each sample speech. These sample voices can be human voices, animal calls, musical instruments, virtual voices produced by computers, and the like.

[0035] The fundamental frequency value of each sample speech is obtained like this: the fundamental frequency value extraction module 12 extracts the discrete fundamental frequency value sequence in the mode of digital signal sampling from each sample speech, then calculates the arithmetic mean value to the fundamental frequency value sequence As the fundamental frequency value of...

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Abstract

The invention discloses a singing voice conversion device which comprises a sample voice library, a fundamental frequency extracting module, a recording module, a note segmentation module, a fundamental frequency conversion module and a splicing module, wherein the sample voice library is used for storing a plurality of sample voices and the fundamental frequency values of the sample voices, the fundamental frequency extracting module is used for extracting a discrete fundamental frequency value sequence from each voice, the recording module is used for recording the voice made when a person sings into a source voice, the note segmentation module is used for segmenting the source voice into a plurality of source voice fragments according to the fundamental frequency value sequence of the source voice, the fundamental frequency conversion module is used for searching the sample voice with the fundamental frequency value, closest to the fundamental frequency value of each source voice fragment, in the sample voice library and carrying out the conversion between the fundamental frequency and the duration, and the splicing module is used for splicing the converted sample voice and generating an output voice. The invention further discloses a singing voice conversion method corresponding to the singing voice conversion device. According to the singing voice conversion device and the singing voice conversion method for the voice made when the person sings, the application field of the conversion of the voice is enlarged, and the singing voice conversion device and the singing voice conversion method can be applied to the fields such as the system for converting the singing voice to the melody information, confidential communication, melody information recognition and digital entertainment.

Description

technical field [0001] The invention relates to a device and method for processing human voice signals. Background technique [0002] Speech (speech or voice) refers to the sound that human beings send out through the vocal organs, has a certain meaning, and is used for social communication. The physical basis of speech mainly includes pitch, sound intensity, sound duration, and timbre, which are also the four elements that constitute speech. Pitch refers to the frequency of the sound wave; sound intensity refers to the amplitude of the sound wave; sound length refers to the duration of the sound wave vibration, also known as "duration"; timbre refers to the characteristics and nature of the sound, also known as "sound quality". [0003] Voice conversion refers to changing the voice personality characteristics (such as voice spectrum characteristics) of the source speaker (source speaker), but keeping the original semantic information unchanged, so that it has the voice per...

Claims

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Application Information

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IPC IPC(8): G10L15/04G10L13/08G10L25/18G10L25/54
Inventor 曹裕行王磊李鹏苏牧
Owner SHANGHAI GUOKE ELECTRONICS