The tracks were a good 30 seconds long, the source was actual instruments rather than white noise. The inaccuracy was due to the fact that the timed spectral analysis is due to the very slight differences. Its plausible just not in the timeframe. Bare in mind i got 63 recordings from this work aswell lol. The microphones positions which were compared were all the same microphones so as to be a fair test so the response graphs seemed unneccesary.
I do wish to carry on this work, i just need the correct situation again. And your input is very much appreciated