Does anyone who denies the controlled demolition explanation have any relevant information on how these demolition squibs could have been recorded during the collapses?
There is no "controlled demolition explanation". There are just some uninformed people saying "controlled demolition," suggesting lots of mutually contradictory qualifications, and pretending that constitutes an explanation. One thing they like to do is mis-use the term "squibs", a word meaning small fireworks or special effect charges, to denote the substantial and extremely loud shaped charges used to demolish buildings, which sounds are clearly absent from the audio recordings of the collapses on 9/11. However, some of them manage to convince themselves otherwise despite the absence of evidence, and in at least one instance have edited the required sounds into an existing video. Apparently doctoring evidence like this is a vital part of the search for truth.
NIST has been very coy about trying to answer this question. At one point they were referring people to a debunking site where the squibs were claimed to be some kind of reverse explosion or some such nonsense.
They have never answered the question because there is no question to answer. Perhaps you'd like to post a link to this debunking site with appropriately added spaces here and there so it doesn't get filtered out. NIST did, of course, calculate the size of charge required to sever a single core column of WTC7, and found that the sound produced would have been loud enough to cause temporary hearing loss within half a mile, and one could assume by extrapolation that a similar size of charge would be needed for the Twin Towers. If there had actually been a coherent question, the absence of any instances of such hearing loss on 9/11 would have been a perfectly satisfactory answer.
And of course, it's this critical deficiency in the evidence that caused one group of truthers, led by Steven Jones, to invent the idea that thermite can be used to sever compressive structural members and that this was done to demolish the Twin Towers. The best of their efforts has resulted in a set of data which, if skillfully misinterpreted, suggests that there may have been enough thermite in the entirety of the Twin Towers to raise the temperature of the steelwork by about two degrees (though in fact what they found was almost certainly paint).
Your question is, of course, a classic example of the complex question fallacy, in its purest form, because it tries to sneak a point past the responder by embedding it in the question. The point is rejected because it is simply untrue.
Much of this, by the way, was done to death here nearly ten years ago. When you've been here a while you'll be able to use the search function and find out more.
Dave
