Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)
- 1993.06a
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- Pages.68-72
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- 1993
A New Method for Measuring the Distortions of the Loudspeaker at Low Frequencies
스피커의 저주파 대역 왜곡 측정의 새로운 기법
Abstract
A method to measure the distortions of the loudspeaker at low frequencies without an anechoic chamber is proposed. This method utilizes the fact that the n-th harmonic distortion outside the enclosure is boosted by 40log n dB compared to that inside the enclosure. By compensating for the effect of standing waves occuring inside the enclosure, it is possible to predict the distortions for wide frequency ranges below the first break-up frequency of the diaphragm. The method is applicable to the intermodulation distortion as well.
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