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View Full Version : Has modern society evolved to accept stereo playback as natural sound?



STHLS5
25-02-2010, 02:53 AM
Every noise that we hear originates from a single source. Almost all noise originates from a single source, we hear the sound with ONE pair of ears, and if I am not mistaken a pair of ears can help localizing the source of the sound better than a single ear. OTOH, the stereo playback consists of two speakers producing the same sound identically and perceived by our ears as sound originates from a single source. This is contrary to nature yet we accept them and associate two identical sound as one. In fact, our brains pick up the same sound FOUR times!

So have we adapted to stereo sound to associate it with real sound or would a stranger from a world far away from civilization perceive stereo sound indistinguishable between real and recording?

ST

Labarum
25-02-2010, 11:55 AM
I am not sure if your question can be answered except to observe that human physiology cannot have adapted in 80 years.

It might be interesting to compare "binaural" with "stereo", and read up on the early work of Alan Blumlein.

http://en.wikipedia.org/wiki/Binaural_recording

http://en.wikipedia.org/wiki/Alan_Blumlein

http://www.alanturing.net/turing_archive/pages/blumlein/index.html

Or just Google "Alan Blumlein"

A great man, who did much for audio, TV and the BBC; and whose work on Radar restrained Hitler's U-Boats, and probably saved the British Isles from starvation and worse. It is a pity he is so little known.

Thanos
25-02-2010, 01:05 PM
I am not sure if your question can be answered except to observe that human physiology cannot have adapted in 80 years.

It might be interesting to compare "binaural" with "stereo", and read up on the early work of Alan Blumlein.

http://en.wikipedia.org/wiki/Binaural_recording


http://en.wikipedia.org/wiki/Alan_Blumlein

http://www.alanturing.net/turing_archive/pages/blumlein/index.html

Or just Google "Alan Blumlein"

A great man, who did much for audio, TV and the BBC; and whose work on Radar restrained Hitler's U-Boats, and probably saved the British Isles from starvation and worse. It is a pity he is so little known.

Just finished reading in Wikipedia about Alan Blumlein. I had heard of him (especially by two friends -recording engineers- who so many times referred to his mics), still had no idea what an important scientist he was, a kind of Reference Point for the world's electronics development. What a man! How sad he was lost, being only 38 years old, so young...

Really thanks for this, I feel I want to find a book about his life, a biography, as far as I've been studying WW2 for 37 years now collecting everything about it... My father was a Spitfire Mk VbA pilot with the R.D.A.F.... what more?
Thanks again,
Thanos

Labarum
25-02-2010, 01:23 PM
The Radio Programme referenced at the bottom of this page was excellent

http://news.bbc.co.uk/1/hi/technology/7538152.stm

I don't know if it may be accessed in the BBC archives.

I knew about Blumlein and his Radar work, but I had not appreciated how crucial his work was.

Within a couple of days of the RAF Bombers being fitted with his on-board Radar Donitz http://en.wikipedia.org/wiki/Karl_D%C3%B6nitz had confined the U-Boats to base. With Radar the bombers could see them underwater and pick them off.

kittykat
25-02-2010, 10:47 PM
I feel I want to find a book about his life, a biography

Hi Thanos, Focal Press has a book on him.

'The Inventor Of Stereo: The Life & Works Of Alan Dower Blumlein'. by Robert Charles Alexander - ISBN 0-240-51628-1, Publ. Focal Press, 1999

Since it will be 80 years next year of the concept, perhaps Harbeth will come out with "80 years of Stereo" editions of their speakers. some very exotic veneers (from forests with good management practices of course) , solid silver wiring and posts (gold plated), fancy brand name caps and resistors, Beryllium tweeter and of course nothing else than Radial, maybe titanium framed supergrilles, acoustically transparent silk cloth, solid 18K gold "Harbeth" badge on the front, im puking already but im sure there'll be sales. sorry got carried away there....

Labarum
26-02-2010, 07:25 AM
Hi Thanos, Focal Press has a book on him.

'The Inventor Of Stereo: The Life & Works Of Alan Dower Blumlein'. by Robert Charles Alexander - ISBN 0-240-51628-1, Publ. Focal Press, 1999

Since it will be 80 years next year of the concept, perhaps Harbeth will come out with "80 years of Stereo" editions of their speakers. some very exotic veneers (from forests with good management practices of course) , solid silver wiring and posts (gold plated), fancy brand name caps and resistors

Forget the bling. Just make them active. Replacing passive crossovers with line level analogue crossovers could take distortion down an order of magnitude, and let those radials display their strengths even more.

Labarum
27-02-2010, 06:49 PM
This site on microphone technique may shed some light on our understanding of stereo

http://www.dpamicrophones.com/en/Microphone-University/StereoTechniques.aspx

STHLS5
28-02-2010, 11:23 AM
After three days experimenting with Tracy Chapman's - Behind the wall, I am unable to say for sure if her voice sounded more natural with one speaker instead of two. Though I thought she sounded a bit thin with single speaker but I wouldn't be so sure to stand by it.

ST

Labarum
28-02-2010, 11:27 AM
The stereo presentation would capture more of the ambience of the performance space than the summed mono.

That alone could account for the "bit thin" observation.