Test method and system for auditory time modulation transfer function

A technology of time modulation and transfer function, which is applied in audiometers and other directions, can solve the problem of time-domain resolution of short needle stimulation signals, and achieve fast and effective measurement results

Active Publication Date: 2013-05-15
INST OF ACOUSTICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

Both are the time-domain detection capabilities of the human ear, but the length of time is different, and the stimulus signal for time-domain resolution is shorter

Method used

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  • Test method and system for auditory time modulation transfer function
  • Test method and system for auditory time modulation transfer function
  • Test method and system for auditory time modulation transfer function

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Embodiment Construction

[0046] In order to verify the feasibility and effectiveness of the method of the present invention, the author developed a set of software platform according to the method flow proposed by the present invention. At present, 22 cases of normal hearing tests have been completed using this software platform. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] Such as figure 2 Shown is the adaptive test algorithm block diagram of the formal test module of the auditory time modulation transfer function test method of the present invention, first initializes the required parameters, such as: step size, modulation depth, question number, inflection point number, etc., followed by " The 2down-1up” adaptive method calculates and processes the change of the modulation depth, and finally ends a set of tests when 12 inflection points appear and calculates the average value of the modulation depth at the la...

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Abstract

The invention provides a test method and a test system for an auditory time modulation transfer function. The test system is used for testing detection capability of human ears for auditory time modulation. The test system comprises an auditory time modulation transfer function test system. The subsystem further comprises a user management module, a parameter configuration module, a loudness regulation module, a formal testing module, and a result generation module, wherein the user management module is used for inputting and storing basic information of a testee, the parameter configuration module is used for selecting and disposing testing parameters and achieving parameter configuration by using two methods of field configuration and directly importing prepared parameter configuration files, the loudness regulation module is used for regulating reference signals, calibrating a sound field by using a sound level meter, and guaranteeing that the sound pressure level of the reference signals meets the calibration standard, the formal testing module is used for conducting self-adaption tests based a two-optional forced choice method and calculating modulation depth which can be recognized by the testee in a minimum degree with different modulation frequencies, and the result generation module is used for collecting test information and test data, and generating appraisal curve results.

Description

technical field [0001] The present invention relates to the field of psychoacoustics, and proposes a test method for auditory time modulation transfer function, which is used for the study of time amplitude modulation perception of human hearing, and is applicable to people with normal hearing and hearing aids such as hearing aids and cochlear implants. The user specifically relates to a method and system for testing auditory time modulation transfer function. Background technique [0002] All sounds can be viewed as one-dimensional signals that change over time, so temporal information is extremely important to the auditory system. Whether it is speech or music, all sounds with effective information are embodied by the time domain changes of the signal. Although different theories and theories including time theory, position theory, and traveling wave theory explain the peripheral auditory system from various angles in the auditory theory, if the human auditory system is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/12
Inventor 冯海泓孟庆林牟宏宇原猛胡海洋孙杨
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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