"Ian Molton" wrote in message

On Wed, 22 Oct 2003 15:58:12 GMT
(Stewart Pinkerton) wrote:

They use measuring microphones, which are generally flat to better
than 1dB over the audio range, and are also supplied with an
individual calibration curve, so that even that small response error
can be calculated out.

where would I get one, and how much would it cost?


The most common models in general use are shown on these web pages:

http://www.behringer.com/02_products...M8000&lang=eng

http://shop.store.yahoo.com/eawsia/microphones.html

http://www.core-sound.com/dpa4006.html