In article ,
N_Cook wrote:
Interesting idea , acoustic guitar+singer recorded professionally and
then played back in front of a couple of pairs of ears via 2 different
pairs of speakers , in turn, driven from the same amp and also the live
performer again, for 3 way comparison. What did the human ears detect,
so readily, to distinguish the live performance?

http://gadgetshow.five.tv/jsp/5gsmai...ction=Features

Doesn't seem to say anything about the actual test.

I've been involved in several of these sort of tests over the years, and
the the standard for the closest approach to the original happened with
equipment made in the '50s. The microphone was a BBC design - the PGS,
made by STC as the 4038, and the speaker a Quad ESL. We used a male voice
recorded digitally, and played back to the speaker which was behind a
gauze along with the chap whose voice we used. The lighting was arranged
so you couldn't see through the gauze. It fooled the majority of the
listening panel - made up of allsorts, not just sound pros or Hi-Fi types.
No moving coil speaker that we tried got close to fooling anyone.

It's much more difficult to do with two sources together like guitar and
vocal as the ear will tend to position them - so stereo would be needed
and impossible to do with more than one listener at a time. We also used
solo sax with much the same results - but solo piano was guessed right by
the majority.

--
*I wished the buck stopped here, as I could use a few*

Dave Plowman London SW
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