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Method and apparatus for tonal modification of voice

A technology of voice and pitch change, applied in speech analysis, instruments, etc., can solve the problem of unable to achieve self-adaptive pitch change of voice, and achieve the effect of improving the accuracy of pitch change and facilitating operation

Inactive Publication Date: 2009-01-28
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the existing voice pitch change technology is to change the pitch fixedly by manually setting the range of rising or falling pitch by the user, that is, the existing technology cannot realize the adaptive pitch shifting of voice

Method used

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  • Method and apparatus for tonal modification of voice
  • Method and apparatus for tonal modification of voice

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Embodiment Construction

[0031] The embodiment of the present invention provides an adaptive voice modulation method and device, which is used to automatically change the received voice, change the male voice into a female voice, or change a female voice into a male voice, or both male and female voices Or they all become female voices, which facilitates the user's operation and improves the accuracy of pitch shifting.

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] see figure 1 , the embodiment of the present invention provides a kind of self-adaptive method for speech tone shifting generally including steps:

[0034] S101. Perform pitch detection on received speech to determine a pitch period of the speech.

[0035] S102. Determine the pitch period range to which the pitch period of the speech belongs, and obtain the tone transposition parameter corresponding to the pitch period range to which the pitch period ...

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PUM

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Abstract

The invention discloses a speech tone modification method and a device thereof, which are used to realize the self-adaptive tone modification of speech. The speech tone modification method provided by the invention comprises the following steps: received speech is subjected to pitch detection to determine the pitch period of the speech; the range of pitch period to which the pitch period of the speech belongs is determined; according to the preset corresponding relation between the range of the tone period and pitch modification parameters, the tone modification parameters corresponding to the range of the pitch period to which the pitch period of the speech belongs is obtained; and the tone modification parameters are adopted to carry out tone modification processing to the speech. The speech tone modification method and the device are used for realizing the self-adaptive tone modification of the speech and avoids the fact that the prior art needs the user to fixedly change tone through manually setting the tone rising amplitude or the tone falling amplitude, thereby being convenient to operate by the user and improving the accuracy of tone modification.

Description

technical field [0001] The present invention relates to the technical field of voice processing, in particular to a method and device for voice modulation. Background technique [0002] At present, voice communication involves an increasingly wide range, including telephone, mobile phone, network video chat, voice mail and so on. Due to the needs of military security, privacy protection or personal entertainment, people not only hope to hide their identity by changing their own voice characteristics in voice communication, but also have the need to change the voice characteristics of the other party at the local call end. [0003] Existing pitch-shifting effects are generally applied at the sending end of voice signals, and the pitch can be fixedly changed by specifying the range of rising or falling pitch, so as to play the role of changing male voice into female voice or female voice into male voice. Generally speaking, the pitch of a female voice is higher than that of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/00G10L19/00
Inventor 徐磊张晨
Owner VIMICRO CORP
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