如何规定扬声器系统的品质? - Klippel GmbH
如何规定扬声器系统的品质? - Klippel GmbH
如何规定扬声器系统的品质? - Klippel GmbH
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寻找一个最佳的激励信号<br />
Searching for an optimal Stimulus<br />
可闻的音圈撞击声<br />
Audibility of Voice Coil Rubbing<br />
Signal Stimulus Output<br />
1V<br />
Music<br />
Multi-Tone<br />
20 Hz – 20 kHz<br />
Multi-Tone<br />
20 Hz – 1 kHz<br />
Sinussoidal Sweep<br />
1 s<br />
Most sensitive Stimulus<br />
<strong>如何规定扬声器系统的品质</strong>? How to Specify Sound Quality ?, 55<br />
<strong>如何规定扬声器系统的品质</strong>? How to Specify Sound Quality ?, 56<br />
Output<br />
2V<br />
Output<br />
3V<br />
www.klippel.de<br />
脉冲失真测量 PHD(f) @ SPL MAX<br />
Impulsive Distortion Measurement PHD(f) @ SPL MAX<br />
校准激励信号U,产生输出SPL(f)>=SPLmax,在时域上测量的高次谐波<br />
(n>20)失真的峰值<br />
The peak value PHD of the higher-order harmonics (n> 20) measured in the time domain while<br />
adjusting the stimulus U to produce an output SPL(f) ≥ SPL MAX for f lower < f < fupper<br />
SPL<br />
SPL MAX<br />
higher-order harmonics<br />
Peak value PHD<br />
FT -1<br />
f f<br />
lowerf1<br />
upper<br />
frequency<br />
Sweeping tone f1 www.klippel.de
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