At 08:46 24-11-12, Eric Carmichel wrote:
>Back in October (Sursound Digest, Vol 51, Issue 24, to be exact) there
>was a post regarding places to visit, and Orfield Labs, the "quietest
>place on Earth" was showcased. It was then pointed out that the BBC
>article (link below) said, "an average conversation runs at about
30 decibels."
>
>I asked Steve Orfield, who owns/operates Orfield Labs, where this
>figure might have come from. Steve politely replied with, "We aren't
>responsible for the levels. We always reference 65.5 dBA, from the old
>articuatlion index standards and ANSI."
>
>So, I suppose the "30 decibel" level came from an unreliable source --
>seems to happen a lot since the advent of the Internet (that we all
>know is an alien conspiracy).
The BBC does not always check facts.
http://news.bbc.co.uk/2/hi/programmes/fast_track/9766517.stm
See this item on whether electronic gadgets can actually affect the
safe operation of a plane during take off or landing, where a
scientist making the measurements mistakenly tells a journalist that
-20dBm = 1/10 mW without being challenged. Later the journalist
quotes this as 1/10 W.
I wrote to point this out, and received a "thank you for your
interest" reply...
David
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