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Voice changing method and device

A technology of voice change and acoustic characteristics, applied in the field of voice change methods and devices, which can solve the problems of poor voice change effect and inability to better reflect the source speaker's rhythm and emotion, and achieve good voice change effect and accurate parameters

Pending Publication Date: 2020-08-25
BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD
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AI Technical Summary

Problems solved by technology

The voice changing effect obtained by using this voice changing processing method is not good, especially the converted voice cannot better reflect the rhythm and emotion of the source speaker.

Method used

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  • Voice changing method and device

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Embodiment Construction

[0065] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0066] Embodiments of the present invention provide a voice changing method and device, which pre-constructs a timbre conversion model corresponding to a specific target speaker, and extracts speech recognition acoustic features and speech synthesis acoustic features from the received audio data corresponding to the sentence of the source speaker. Speech recognition acoustic features are used to obtain speech recognition hidden layer features, and speech synthesis acoustic features are used to obtain speech synthesis coding features; using the hidden layer features and the coding features as an intermediary, using the timbre conversion model to recognize the speech of the corresponding source speaker The acoustic...

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Abstract

The invention discloses a voice changing method and device. The method comprises the following steps: receiving a source speaker statement; extracting voice recognition acoustic features and voice synthesis acoustic features from the source speaker statement; utilizing the voice recognition acoustic features to obtain voice recognition hidden layer features; utilizing the voice synthesis acousticfeatures to obtain voice synthesis coding features; inputting the voice recognition hidden layer features and the voice synthesis coding features into a pre-constructed tone conversion model corresponding to a specific target speaker to obtain voice synthesis acoustic features of the specific target speaker; and generating an audio signal of the specific target speaker by using the voice synthesisacoustic feature of the specific target speaker. According to the scheme of the invention, the voice changing method and device can achieve the conversion from any source speaker voice to the targetspeaker voice, and is better in voice changing effect.

Description

technical field [0001] The invention relates to the field of voice signal processing, in particular to a voice changing method and device. Background technique [0002] At present, with the development of speech synthesis technology, how to make the synthesized speech natural, diverse, and personalized has become a hot topic in speech technology research, and voice-changing technology is one of the ways to diversify and personalize the synthesized speech. Voice-changing technology mainly refers to the technology that retains the semantic content of the speech signal but changes the characteristics of the speaker's voice, making someone's voice sound like another person's voice. From the perspective of speaker conversion, voice changing technology is usually divided into two ways: one is the voice conversion between non-specific people, such as the conversion between male and female voices, and the conversion between different age levels; the other is Speech conversion betwe...

Claims

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Application Information

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IPC IPC(8): G10L21/013G10L13/02G10L13/04G10L15/02G10L25/12G10L25/18G10L25/24
CPCG10L13/02G10L15/02G10L21/013G10L25/12G10L25/18G10L25/24G10L2021/0135
Inventor 刘恺
Owner BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD
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