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Difference between revisions of "NVGate Overall Acoustic - Sound Level meter"
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NVGate Overall Acoustic - Sound Level meter (view source)
Revision as of 15:05, 9 December 2021
, 15:05, 9 December 2021→RMS detectors
| Line 275: | Line 275: | ||
* Weighting | * Weighting | ||
{|border="2" cellspacing="0" cellpadding="4" width="92%" align="center" | {|class="wikitable" style="background:white" border="2" cellspacing="0" cellpadding="4" width="92%" align="center" | ||
|A | |A | ||
|Selects the <nowiki>’</nowiki>A<nowiki>’</nowiki> weighting on the time signal. <br>This average mode is not available for frequency ranges below 10kHz | |Selects the <nowiki>’</nowiki>A<nowiki>’</nowiki> weighting on the time signal. <br>This average mode is not available for frequency ranges below 10kHz | ||
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* Time filter | * Time filter | ||
{|border="2" cellspacing="0" cellpadding="4" width="93%" align="center" | {|class="wikitable" style="background:white" border="2" cellspacing="0" cellpadding="4" width="93%" align="center" | ||
|Fast | |Fast | ||
|Corresponds to an exponential averaging with a fixed "Exponential time constant" of 0.125s.<br><br>''Refresh'' is performed when new instantaneous spectrum is available (periodicity: (1/(fs*2,56))*256 with fs the input sampling frequency)<br><br>The ''event'' ''" OVA Leq result available"'' corresponds to the periodicity ((1/(fs*2,56))*256 with fs the input sampling frequency). | |Corresponds to an exponential averaging with a fixed "Exponential time constant" of 0.125s.<br><br>''Refresh'' is performed when new instantaneous spectrum is available (periodicity: (1/(fs*2,56))*256 with fs the input sampling frequency)<br><br>The ''event'' ''" OVA Leq result available"'' corresponds to the periodicity ((1/(fs*2,56))*256 with fs the input sampling frequency). | ||