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Re: [ARSCLIST] Absolute Polarity
On Sun, Oct 19, 2008 at 8:46 PM, Bob Olhsson <olh@xxxxxxxxxxxxx> wrote:
> >Clark Johnson writes:...I don't think the phenomenon itself was recognized
> until the early Sixties,
> >although surely many listeners knew something was "wrong" occasionally.
> It was comon knowledge in broadcasting during the early 1930s and Bell Labs
> found nonlinearities in hearing that suggest there is no reason for polarity
> not to be audible.
Kind of a backwards way of putting it, but, yes. And in the early fifties it
was discovered that AM signals would be broadcast with greater ERP if all
the polarities were aligned, so very soon on the market there appeared...
> Unfortunately almost everything about audio was purged from most
> engineering texts during the 1950s leaving us with a generation of engineers
> who considered the basics to be such common knowledge that there was little
> reason to publish anything who were followed by a generation who had little
> exposure to the subject other than in the hi fi press. Hence the wheel gets
> reinvented over and over.
You got* that* right! Which also explains why one keeps hearing that most
equipment is "properly designed". Because *everyone knows*...
> Bob Olhsson Audio Mastery, Nashville TN
> Mastering, Audio for Picture, Mix Evaluation and Quality Control
> Over 40 years making people sound better than they ever imagined!
> 615.385.8051 http://www.hyperback.com