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The Study of Human Hearing Sensitivity to Sound which transformed from Pulse Student:Wen-Tsung Tang Advisor: Yan-Chay Li, Sun-Lon Jen, Ke-Nung Huang Department of Electronic Engineering I-Shou University ABSTRACT This research describes a system using LabVIEW software to simulate human pulse by converting it into audible sound waves. A survey was used to determine if the human ear is able to distinguish the different sound waves of different pulse conditions under various pulse group categories. The system uses the LabVIEW software to yield the Fourier harmonic wave function to simulate the oscillating structure of the human pulse. Each “meridians” yields a specific harmonic frequency. The harmonic wave is associated with the “meridian” of the organ. We change the coefficients of the first and fifth and third、sixth、ninth harmonic wave ,correlated with its output sound, in order to research the human ear sensitivity to sound from pulse.. Increasing or decreasing the coefficients of the Fourier function simulates the harmonic function of an individual under different conditions. Sound using the LabVIEW software, sampling rate 120 Hz, the sensitive of the ear to these converted sound can be determined. We have designed a sound conversion software using LabVIEW 6.0 and compare three groups of waveforms. First, the rise and fall in amplitude of the first harmonic wave function, which is associated with the “meridian” of the liver. Second, the rise and fall in amplitude of the fifth harmonic wave function, which is associated with the “meridian” of the stomach. And third, the rise and fall in amplitude of the third harmonic wave function (SPLEEN MERIDIAN), the sixth harmonic wave function (GALL BLADDER MERIDIAN) and the ninth harmonic wave function (TRIPLE ENERGIZER MERIDIAN), which a strong and weak immune system. In each group of experiment, ten different conditions with varied coefficient are compared to the standard harmonic waveform of a healthy person. High school students with normal hearing are asked to listen to the audible sound from the harmonic wave functions. The following was concluded from the experiments: The sound from first group is not easily audible. The sound from the second group was a little more audible. And finally, the sound from group three was the most audible. In addition, increasing and decreasing of the amplitude within a specified will not yield any audible sound to the human ear. Frequency Modulation can be experienced in the future to see if it yields a more favorable result with a wider range of audibility. This software program is used to determine whether the pulse distribution can be detected. Previously, to diagnose the condition of the patient “the harmonic wave function”─the shape, amplitude, shape, and volume─was determined by touch only, now it can be determined by sound. Combining the sensor and computer, we can convert the artery pulse into audible sound, and record the digital data. To research the difference of the sound, we will understand its meaning and relation in physiology and diagnosis in the future. Keywords-pulse,sound,meridian
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