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http://dx.doi.org/10.7776/ASK.2013.32.6.509

A Study on the Audio Compensation System  

Jeoung, Byung-Chul ((주)케빅 부설 연구소)
Won, Chung-Sang (국립 한국교통대학교 컴퓨터공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.32, no.6, 2013 , pp. 509-517 More about this Journal
Abstract
In this paper, we researched a method that makes a good acoustic-speech system using a digital signal processing technique with dynamic microphone as a transducer. Good acoustic-speech system should deliver the original sound input to electric signal without distortion. By measuring the frequency response of the microphone, adjustment factors are obtained by comparing measured data and standard frequency response of microphone for each frequency band. The final sound levels are obtained using the developed adjustment factors of frequency responses from the microphone and speaker to match the original sound levels using the digital signal processing technique. Then, we minimize the changes in the frequency response and level due to the variation of the distance from source to microphone, where the frequency responses were measured according to the distance changes.
Keywords
Microphone; Speaker; Frequency response; Nonlinear distortion; FFT; iFFT; Audio compensation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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