전자공학회논문지S (Journal of the Korean Institute of Telematics and Electronics S)
- 제34S권7호
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- Pages.112-122
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- 1997
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- 1226-5837(pISSN)
히스테리시스 제어기법을 이용한 능동 소음기의 구현
A implementation on active silencer using hysteresis control
초록
This paper presents active silencing by hysteresis control method and shows its audible noise reduction effect. A Pentium processor and sound blaster 16 card are used for its implementation. The Sound-Blaster 16 executes the A/D, D/A conversion and is used for operating source of lodspeaker for cancelling. As a result, between the frequency range of 100[Hz] and 200[Hz] there is an audible noise reduction effect from 9[dB] to 15[dB], and between the 300[Hz] and 500[Hz] range there is a reduction from 3[dB] to 5[dB].
키워드