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Distributed hearing experiment method

An experimental method, a decentralized technology, used in instruments, measuring devices, measuring ultrasonic/sonic/infrasonic waves, etc.

Active Publication Date: 2021-04-16
ZHEJIANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of decentralized hearing test method, which solves the difficult problem of how to make the time domain and frequency domain characteristics of the sound sample actually heard at the cochlea of ​​the tested subject be the same as the original sound sample (there is only a volume difference between the two)

Method used

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Examples

Experimental program
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Embodiment

[0029] see figure 1 , the decentralized listening test method of the present embodiment includes:

[0030] First, select a standard sound sample B 0, in order to establish the relationship curve between the volume V of the standard sound sample and the sound quality evaluation measure (noise annoyance) S, use professional software to adjust its volume, and obtain the sound sample sequence B k '(k=1, 2, 3, ..., 17), the adjusted sound sample B k ’ The time-domain and frequency-domain curves are consistent with the sound sample B 0 parallel to each other. Acoustic Sample B 0 The volume is the reference value, define the sound sample B k 'Volume and sound sample B 0 The ratio of the volume is V, and V is used to characterize the sound sample B k ′ volume, denoted as

[0031] According to the relevant experimental procedures, use the 11-level digital rating scale (see Table 1) to conduct the noise annoyance evaluation experiment in the laboratory, and obtain the sound sa...

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Abstract

The invention relates to a distributed hearing experiment method, and belongs to the technical field of psychoacoustics, environmental acoustics and sound quality. The distributed hearing experiment method comprises the steps of: establishing a relation curve between the sound quality evaluation result and each acoustic parameter to serve targeted regulation and control of the sound quality; and determining volume of a sound sample output by a playback system adopted by an experiment by referring to a sound quality evaluation value of the sound sample in the experiment; and finally, acquiring the sound sample actually heard at the cochlea in the experiment accurately. According to the distributed hearing experiment method, recruitment of the experimental subject is facilitated, and the problem of how to enable the time domain and frequency domain characteristics of the sound sample actually heard at the cochlea to be the same as those of the original sound sample (there is only volume difference between the two sound samples) is solved.

Description

technical field [0001] The invention relates to the technical fields of psychoacoustics, environmental acoustics and sound quality, in particular to a decentralized hearing test method. Background technique [0002] Sound quality evaluation is a subjective evaluation of sound events based on human perception. When performing noise control (such as improving the sound quality of electromechanical products, formulating traffic noise control schemes, etc.), it is usually necessary to establish sound quality Annoyance, acoustic comfort and pleasure, etc.) and acoustic and non-acoustic parameters (such as objective acoustic parameters, psychoacoustic parameters, individual factor parameters, etc.), and then control the noise by adjusting the controllable parameters. [0003] In the traditional sound quality evaluation experiment, in order to ensure the scientific credibility of the results, the number of subjects must meet the statistical requirements. However, limited by the si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
Inventor 翟国庆陈聪姚瑶李军吴健耿明昕马建刚
Owner ZHEJIANG UNIV
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