Here's what were doing...
We're using Studio A control room at MTSU to set up a test. We're using the Audio Precision to generate and interpret
sine wave sweeps between my microphone and the B&K reference microphone the shop uses for certain reference tasks.
The B&K is an phantom-powered omnidirectional reference microphone with a frequency range of 20 Hz to 40 kHz.
It's very high quality, of course.
Since we don't have an anechoic room to perform tests in, Alton suggested that we use this microphone to make a base
for comparison, so that we might use the results from my microphone in an averaging of the two to create the true frequency
response graph of Spike. It worked well, especially the first time we did the tests.
The mics were set up (at different times) in the identical spot, and a sine wave sweep was done. The Audio Precision
computer reads the sweeps, and displays them in the handy form shown above. Theoretically, having the B&K as the
reference would allow us to account for all variations in the room (since it is omni). The frequency response of the
B&K was wacky, as well as mine in the beginning. But when I averaged the two using some elbow grease, it was shocking!
The results were so good, that I could hardly contain myself.