[FrankHudson]

Yes, it was a extreme example of room sound, which the presenter tells us is his point. Point taken.

I've never heard that level of echo in my "Studio B" (small bedroom used as home office). Not even close. As a person not knowledgeable in acoustic space design and mitigation I'm under the vague impression that particular problem is more easily solved than other acoustic issues. Given that his mic was likely carotid, I wonder if he just hung the blanket/duvet over a shower curtain rod behind him if he'd get as good or better results and a better environment to produce actual vocals. And then for test C after that test B, what if he used one of the small arched semi circular mic stand mounted screens behind the mic and worked closer, but just outside the proximity effect zone.

I too thought the "after blanket" mic sound wasn't anything I'd want to use, unless I was aiming for "this is my first podcast" and my aims were based on what I thought FM DJs sounded like in my youth. Maybe just a lot of proximity effect though we obvously couldn't see through the blanket.