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Acoustics & Room Treatment
Room EQ Measuring Equipment
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<blockquote data-quote="Timber_MG" data-source="post: 33006" data-attributes="member: 18"><p>The linked pages contain statistical analyses of accuracy of a couple of measurement mics (including the Panasonic capsules, ECM8000 and some cheap stand-mics) against a source calibrated against a LAB grade calibrated microphone.</p><p></p><p>An ECM8000 is not a reference, but it does very well for most crossover-design tasks faced by loudspeaker designers and when an individual calibration is performed it allows for some fairly accurate measurements.</p><p></p><p>The issue with a general correction curve is that it may well be representative for a given batch of mics (or even only a single mic), but one needs to be wary of the statistical variance in microphones to arrive at an uncertainty of measurement, a factor that can be reduced drastically by verifying (calibrating) the response against a known reference.</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 33006, member: 18"] The linked pages contain statistical analyses of accuracy of a couple of measurement mics (including the Panasonic capsules, ECM8000 and some cheap stand-mics) against a source calibrated against a LAB grade calibrated microphone. An ECM8000 is not a reference, but it does very well for most crossover-design tasks faced by loudspeaker designers and when an individual calibration is performed it allows for some fairly accurate measurements. The issue with a general correction curve is that it may well be representative for a given batch of mics (or even only a single mic), but one needs to be wary of the statistical variance in microphones to arrive at an uncertainty of measurement, a factor that can be reduced drastically by verifying (calibrating) the response against a known reference. [/QUOTE]
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Audio and Video Talk
Acoustics & Room Treatment
Room EQ Measuring Equipment
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