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Re: What microphones ... (Bob Hazelwood or Jim L.) (archive)
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Posted by Bob Hazelwood on June 01, 1999 at 10:52:35:

In Reply to: What microphones ... (Bob Hazelwood or Jim L.) posted by Glenn on May 31, 1999 at 11:32:23:

As BMleW mentioned, there are a number of manufacturers who make calibrated laboratory mic's which are considered reference standards. However, with the current crop of affordable computer-based test gear, it is less important to have a flat mic than it is to know what it's deviations are. I have a small, portable FFT set up that I use with a $2 Panasonic mic capsule that I have calibrated against a B&K reference. The two are within 0.1dB of each other! The trick is that the computer stores the reference curve of the mic and subtracts it from the measurements, taking the mic's errors out of the result.

Best regards,
Bob

: are typically used to measure the power spectrum of car audio systems? I have access to appropriate amplifiers and audio spectrum analyzers, but I'm not aware what microphones are normally used to make this sort of measurement. Any suggestions?

: Glenn

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