Pathological voice spectrum reconstruction method based on energy operator

An energy operator and voice technology, applied in the information field, can solve the problems of the dispersion of pathological voice spectrum components and the failure of pathological voice parameter extraction, and achieve the effect of good extraction effect, strong applicability, and improvement of excessive dispersion.

Active Publication Date: 2022-07-29
TIANJIN UNIV
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Problems solved by technology

[0005] In view of this, the present invention aims to propose a pathological voice spectrum reconstruction method based on an energy operator, which improves the problem that the spectral components of the pathological voice are too scattered, and can effectively e

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  • Pathological voice spectrum reconstruction method based on energy operator
  • Pathological voice spectrum reconstruction method based on energy operator
  • Pathological voice spectrum reconstruction method based on energy operator

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[0022] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0023] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be constru...

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Abstract

The invention provides a pathological voice spectrum reconstruction method based on an energy operator. The method comprises the steps of adaptive windowing of a pathological voice signal fundamental frequency, calculation of a power spectrum, reconstruction of the power spectrum, frequency domain smoothing of the power spectrum, calculation of a power cepstrum, homomorphic filtering and calculation of a spectrum envelope. According to the pathologic voice spectrum reconstruction method based on the energy operator, the problem that pathologic voice spectrum components are too dispersed is solved, main information, spectrum components and peak values of voice can be effectively extracted, a reconstructed pathologic voice spectrum envelope is obtained, and the pathologic voice spectrum reconstruction efficiency is improved. The problem that the traditional voice analysis method always fails in parameter extraction of pathological voice is solved.

Description

technical field [0001] The invention belongs to the field of information technology, and in particular relates to a pathological voice spectrum reconstruction method based on an energy operator. Background technique [0002] Pathological voice refers to the voice in which the vocal cord tissue is damaged, the tension of the vocal cord is reduced, and the structural and functional changes of the vocal tract lead to the irregular vibration of the vocal cords, the appearance of high-order harmonics in the glottis, the periodic change of the signal, and the fluctuation of the amplitude and frequency. . Pathological voice restoration is a new direction in the field of voice disorder research. It aims to improve speech intelligibility by repairing pathological voice signals. Repairing pathological voices through non-invasive voice signal processing technology can improve the clarity and intelligibility of pathological voice signals. to help patients with voice disorders experienc...

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Application Information

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IPC IPC(8): G10L19/02G10L19/26G10L25/21G10L25/24G10L25/66
CPCG10L19/02G10L19/26G10L25/21G10L25/24G10L25/66
Inventor 张涛刘赣俊赵鑫
Owner TIANJIN UNIV
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