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The sample frequency depends on the value of the High Filter Setting ( | The sample frequency depends on the value of the High Filter Setting ( | ||
Next, the input signals can be time weighted filters | Next, the input signals can be time weighted filters. | ||
*A, B and C weight filters : These filters available in acoustic frequency range (i.e. from 20 Hz to 20 kHz) satisfy requirements from last standards IEC 651 type 0 and IEC 804 type 0. | *A, B and C weight filters : These filters available in acoustic frequency range (i.e. from 20 Hz to 20 kHz) satisfy requirements from last standards IEC 651 type 0 and IEC 804 type 0. | ||
Any other NVgate filter need to be aplly on Front end (real time) or Player (post analyisis). most common are integrator filters: Single or double time integrators | |||
After time domain filtering, the signals go to the digital 1/n<sup>th</sup> octave filter bank. | After time domain filtering, the signals go to the digital 1/n<sup>th</sup> octave filter bank. | ||
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|fc = 1000 | |fc = 1000 | ||
|<font size = "5"><sub><nowiki>*</nowiki> 10(n<nowiki>+</nowiki>0.5)/40</sub></font><br> | |<font size = "5"><sub><nowiki>*</nowiki> 10(n<nowiki>+</nowiki>0.5)/40</sub></font><br> |