Phonological tone changing method and device

A technology of pitch shifting and voice, which is applied in the field of pitch shifting schemes, can solve problems such as only suitable for computer use, complicated algorithm of pitch shifting software, and unsuitable for transplantation, promotion and realization of small-chip digital signal processing systems, and achieves the effect of simple fixed-point processing

Active Publication Date: 2010-09-22
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Many people hope to change their voice into this "special sound effect" through equipment, but the pitch-changing software or equipment in the prior art can only simply raise or lower the pitch with a fixed range, so as to realize male voice into female voice , the effe...

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  • Phonological tone changing method and device
  • Phonological tone changing method and device
  • Phonological tone changing method and device

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Embodiment Construction

[0030] The detailed description of the present invention directly or indirectly simulates the operation of the technical solution of the present invention mainly through programs, steps, logic blocks, processes or other symbolic descriptions. In the ensuing description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention may be practiced without these specific details. These descriptions and representations herein are used by those skilled in the art to effectively convey the substance of their work to others skilled in the art. In other words, for the purpose of avoiding obscuring the present invention, well-known methods, procedures, components and circuits have not been described in detail since they are readily understood.

[0031] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementa...

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Abstract

The invention discloses a phonological tone changing method and a phonological tone changing device. A time delay factor corresponding to the current time is calculated according to a tone changing function changing along with the time change; and the voice to be processed is subjected to time delay processing according to the time delay factor so as to achieve the special sound effect of 'foreign tone'. Compared with the prior art, the tone changing method adopts a function value changing along the time as a tone changing amplitude, instead of adopting fixed amplitude to raise or fall the tone, so as to achieve the effect of changing the sound into 'foreign tone'; and the sine function in the tone changing function is simulated by adopting a parabolic function, so that the fixed-point processing is simple, and the scheme of the invention is convenient to process on fixed-point digital signal processing-based chips.

Description

【Technical field】 [0001] The invention relates to the field of voice processing, in particular to a voice modulation scheme. 【Background technique】 [0002] At present, voice communication or video playback involves an increasing range, including telephones, mobile phones, online chat videos, voice mails, and portable video playback devices. Due to the needs of military security, privacy protection, or personal entertainment, people hope to make interesting changes in voice to meet people's pursuit of novelty and individuality when they are in voice communication or video playback without affecting the understanding of the content. , the so-called "special sound effect". [0003] However, because the tone and tone of Chinese are different from those of other languages, it is difficult for foreigners to speak Chinese in a correct and round manner, which meets the standard of Mandarin. Instead, it forms an interesting and strange style. Many people hope to change their voice...

Claims

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Application Information

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IPC IPC(8): G10L21/00G10L19/00G10L19/24G10L21/003
Inventor 徐磊
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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