Acoustic auxiliary noise reduction method and device based on psychological acoustics
A technique of psychoacoustics and acoustics, applied in the field of acoustics
Active Publication Date: 2020-01-21
广东华涵智能科技有限公司
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[0006] In view of this, the embodiment of the present invention provides an acoustically assisted noise reduction method and device based on psychoacoustics, aiming to solve the problem of physical sound insulation and noise reduction in the prior art
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[0033] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0034] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0035] figure 1 The implementation process of the psychoacoustic-based acoustic-assisted noise reduction method provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present inv...
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The invention is applicable to the field of acoustics, and provides an acoustic auxiliary noise reduction method and device based on psychological acoustics. The method comprises the following steps of firstly, obtaining harmonic parameters and time delay parameters; then, rebuilding a plurality of first base frequency signals and a plurality of first base frequency harmonic signals correspondingto the plurality of first base frequency signals in real time according to the harmonic parameters and original audio signals; next, performing gain parameter control so as to obtain second base frequency signals and a plurality of second harmonic signals; then, performing time delay regulation so as to obtain third base frequency signals and a plurality of third base frequency harmonic signals; and finally, obtaining synthesized signals according to the first base frequency signals, the plurality of first base frequency harmonic signals, the second base frequency signals, the plurality of second base frequency harmonic signals, the third base frequency signals and / or the plurality of third base frequency harmonic signals. Therefore, the effect of auditory sense noise reduction is achieved; and the defect that only physical sound isolation and noise elimination can be used for space noise reduction is overcome.
Description
technical field [0001] The invention belongs to the field of acoustics, and in particular relates to an acoustic auxiliary noise reduction method and device based on psychoacoustics. Background technique [0002] The noise problem is an important pollution in modern society, which seriously endangers people's health and affects normal life, study and work. Sound insulation and noise reduction is an important part of architecture. The current solution is to use an enclosure structure to limit the sound emitted by the sound source to a certain range or use a special isolation structure on the path of sound wave propagation to increase the propagation loss of sound energy, thereby achieving the purpose of reducing noise. [0003] At present, the control of noise in the industry is mainly based on the sound insulation method of shielding treatment for the noise source, using physical sound insulation materials to make sound insulation components according to different structura...
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Login to View More IPC IPC(8): G10L21/034G10L21/0208H04R3/04
CPCG10L21/034G10L21/0208H04R3/04
Inventor 陈刚
Owner 广东华涵智能科技有限公司