There you have it folks. C7 is just making things up, writing outright lies about acoustics, all in support of the phony CD claim.
He hasn't got a shred of evidence to support his lies, so I'm calling them lies, since I can provide lots of technical support for the truth.
By definition C7's claims are lies, using this standard:
'something intended or serving to convey a false impression'
If you check microphone specs, you can read for yourself what the off-axis drop off in db is.
From Audio Technica:
'A word of caution: these polar patterns are run in an anechoic chamber, which simulates an ideal acoustic environment - one with no walls, ceiling or floor. In the real world, walls and other surfaces will reflect sound quite readily, so that off-axis sound can bounce off a nearby surface and right into the front of the microphone. As a result, you'll rarely enjoy all of the directional capability built into the microphone. Even if cardioid microphones were completely "dead" at the back (
which they never are), sounds from the rear, also reflected from nearby surfaces, would still arrive partially from the sides or front. So cardioid microphones can help reduce unwanted sound, but rarely can they eliminate it entirely. Even so, a cardioid microphone can reduce noise from off-axis directions by about two-thirds.
The directional microphone illustrated in Fig. 5 is about 25 dB less sensitive at 180° off-axis, compared to on-axis. This means that by rotating the cardioid microphone 180°, so that it faces directly away from the sound source,'
http://www.audio-technica.com/cms/site/aa901ccabf1dfc6b/index.html/
Now, taking Ashley Bamfield's case, her microphone is about 90 degrees off-axis to WTC7, meaning several db reduction in sensitivity in that direction. If she were facing 180 degrees away, a typical cardioid would reduce a 115db explosive sound down to about 90db, in the worst-case scenario. Of course it's not going to reduce that amount, because of reflection from buildings.
But assuming a 10db reduction off-axis, and a 115db sound-pressure wave, you would pick up 105db, without any building reflection at all. This sound pressure level is similar to front row at a rock concert.
That's what Chandler and C7 are trying to lie about: they're trying to bullpucky these facts away as if they didn't exist. It is just not even remotely possible that CD explosions wouldn't have been picked up by Bamfield's microphone at that distance (2 or 3 blocks max). Not possible.