小型扬声器的大振幅输出BigSoundfromSmallSpeakers-Klippel.PDF
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Rub Buzz以及其他不規則揚聲器缺陷
Rub Buzz and Other Irregular Loudspeaker Defects
ISEAT 2013
by Prof. Wolfgang Klippel,
University of Technology Dresden
Klippel GmbH
Klippel:Rub Buzz以及其他不規則揚聲器缺陷, 1
揚聲器信號失真的產生
Generation of Signal Distortion in Loudspeakers
Measured
Stimulus
Signal
Input Output
Signal Signal
H(s)-1 過量失真
線性失真 Excessive
linear distortion distortion
Noise • 環境雜訊
•Ambient Noise
Regular 驅動系統和支撐系統 麥克風雜訊
Nonlinearities 產生的失真 Mic Noise
• 磁鐵Magnet Distortion caused by motor Parasitic
•音圈Coil and suspension vibration
•彈波Spider Defects 箱體、房間或其他
•懸邊Surround
物體Enclosure, room,
other objects
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