Rub & Buzz and Other Irregular Loudspeaker ... - Klippel GmbH
Rub & Buzz and Other Irregular Loudspeaker ... - Klippel GmbH
Rub & Buzz and Other Irregular Loudspeaker ... - Klippel GmbH
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
[V]<br />
5,0<br />
2,5<br />
0,0<br />
-2,5<br />
-5,0<br />
Optimal Stimulus<br />
Stimulus (t)<br />
Excitation of <strong>Irregular</strong> <strong>Loudspeaker</strong> Defect<br />
Stimulus (t) vs time<br />
0 100 200 300 400 500<br />
Time [ms]<br />
600 700 800 900 1000<br />
Continous sweep with<br />
speed profile<br />
Why using continuous sweep?<br />
• Defects may be resonators with high Q-factor<br />
• Missed, if not excited exactly<br />
• Critical: Stepped excitation with low resolution<br />
<strong>Klippel</strong>, <strong>Rub</strong> & <strong>Buzz</strong> <strong>and</strong> <strong>Other</strong> <strong>Irregular</strong> <strong>Loudspeaker</strong> Distortion, 22<br />
0,2<br />
0,1<br />
0,0<br />
-0,1<br />
-0,2<br />
-0,3<br />
[V]<br />
0,50<br />
0,25<br />
-0,00<br />
-0,25<br />
-0,50<br />
Y1 (t)<br />
Response<br />
0 500 1000 1500<br />
Time [ms]<br />
2000 2500<br />
Fund. Buffer<br />
Response Detail<br />
6*101 8*101 102 2*102 Frequency [Hz]<br />
Defect
Change language