A Study on Improvement of Sound Quality through the Fingers vibration Acoustic Transfer

In these days, With the remarkable development of information and telecommunication technology today, it is easy to transfer information through portable information devices. When using mobile devices to transmit information, they are placed in various noisy environments. The noise environment is an environment that interrupts the sound of information by using electronic portable devices. In this case, the signal to noise ratio (SNR) can be obtained by comparing the magnitude of the signal generated by the information device with the magnitude of the noise. In previous studies, it has shown that the minimum SNR required for information transmission is 15 dB. Also in previous studies, we analyze the magnitude and type of environmental noise when using mobile devices has been it. In a quiet environment, the average noise level is less than 50 dB. The average of noisy environments is around 80 dB. This noise Received (April 11, 2017), Review Result (April 25, 2017) Accepted (May 2, 2017), Published (June 30, 2017) (Corresponding author) 09678 Dept. Information & Telecommunication Engineering Soongsil University, Sangdo-ro 369, Dongjak-gu, Seoul, Republic of Korea email: pphw@ssu.ac.kr 2 09678 Dept. Information & Telecommunication Engineering Soongsil University, Sangdo-ro 369, Dongjak-gu, Seoul, Republic of Korea email : mjbae@ssu.ac.kr A Study on Improvement of Sound Quality through the Fingers vibration Acoustic Transfer Copyright c 2017 HSST 890 occurs the hearing loss. And when using a portable information communication device, the sound generated from the device easily becomes 100dB. A sound of 100dB is a very dangerous sound that harms human hearing. In this study, we propose a method to improve the sound quality by analyzing the size and characteristics of sound when transmitting sound through finger vibration. keywords: Finger communication, Acoustic transmission by Finger, bone conduction device, Sound quality enhancing