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Pure tone audiometric and psychophysical tuning curve detecting system

A tuning curve and detection system technology, applied in audiometers, etc., can solve problems such as difficulty in building and obtaining, difficulty in hearing system integration, impossibility of pure tone audiometry and psychophysical tuning curve detection, etc., to achieve portability and replacement, Guaranteed comprehensiveness and precision, and the effect of reducing fatigue

Active Publication Date: 2014-11-26
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, some hearing test systems in the prior art have the following problems: 1. The hearing system requires very cumbersome and complete hardware support, which is not easy to build and obtain; 2. Although the hearing test system does not require specific hardware circuits, It is easy to obtain, but it is difficult to guarantee the accuracy of the pure tone intensity heard by the subject during the test, and the accuracy of the test results cannot be guaranteed; 3. The hearing test system has a single test function, and cannot perform a complete pure tone audiometry and psychophysical tuning curve at the same time It is difficult to fully and three-dimensionally reflect the comprehensive situation of the auditory system in terms of intensity and frequency

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  • Pure tone audiometric and psychophysical tuning curve detecting system
  • Pure tone audiometric and psychophysical tuning curve detecting system
  • Pure tone audiometric and psychophysical tuning curve detecting system

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 As shown, the present invention includes a computer 1 loaded with a windows system, a sound card 2, a hand-held USB handle 3, a micro speaker 4 and an earplug 5.

[0019] Sound card 2 of the present invention can adopt the multimedia sound card that can be connected with computer 1 by IEEE1394 interface, such as the present invention has used the 56 channel high-speed fire wire sound card that has 24bit sampling depth, 196kHz highest sampling rate professional index produced by RME company when detecting FireFace800, its signal-to-noise ratio is as high as 119dB. Of course, the sound card 2 of the present invention can also adopt other structural forms and connection methods, such as a multimedia sound card or a common sound card connected through a USB interface, combined with appropriate software programming procedures and t...

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Abstract

The invention relates to a pure tone audiometric and psychophysical tuning curve detecting system which comprises a computer, a multimedia sound card, a handheld USB (universal serial bus) handle, a miniature loudspeaker and an earplug. At least two buttons are arranged on the handle, the miniature loudspeaker comprises at least two electricity-sound transducer, and an input end of the miniature loudspeaker is connected with the sound card while an output end of the miniature loudspeaker is connected with the earplug; an audiometer platform is arranged in the computer and comprises a hardware driving system and a test executing system; and the hardware driving system comprises a sound card driver connected with the sound card and a multimedia programming interface connected with the handle, and the test executing system comprises a pure tone audiometric detecting module and a psychophysical tuning curve detecting module. The pure tone audiometric and psychophysical tuning curve detecting system not only can carry out complete pure tone audiometry, but also can carry out psychophysical tuning curve detection, and can be widely applied to comprehensive detection for an auditory system of a testee.

Description

technical field [0001] The invention relates to a hearing detection system, in particular to a pure tone audiometry and psychophysical tuning curve detection system based on a sound card. Background technique [0002] There are many methods for hearing detection in the prior art, and pure tone audiometry using a standard audiometer is a widely used and recognized detection method that can accurately reflect hearing acuity. Pure tone audiometry Hearing test is a process in which subjects are given sine wave pure tones of different intensities, and subjects respond subjectively according to their own feelings, which is the basis for evaluating auditory function. The pure tone hearing threshold it detects conceptually refers to the minimum sound pressure level at which a certain pure tone signal can cause hearing. Since pure tone audiometry is the most basic and important hearing detection method, it is the preferred auxiliary detection method in clinical practice. The audiome...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/12
Inventor 宫琴先梦王瑶张硕越黎婷婷
Owner TSINGHUA UNIV
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