Re: [ARSCLIST] Absolute Polarity

["Richard L. Hess" <arclists@xxxxxxxxxxxxxxx>]

At 03:29 PM 2008-10-20, Lou Judson wrote:
> Richard, are you talking about recorded sounds or a comparison with
> the abslute polarity heard in the room with the instrument?
>
> Think of the sond emanating from the bottom of a piano, and how it
> affects the listener in the same room (and what if it were recorded
> with mics underneath - then which polarity should it have "on tape?"
> Or snare, tympani, literally every percussion instrument? - how much
> sound comes from the bottom?

Hello, Lou,

I'm talking about minimally mic'd recordings that are what the 
audience hears (or would hear if they were present). Clark has 
already said that a snare and bass drum are compression waves while 
tympani is a rarefaction wave.

I am asking Clark to provide some visual waveform guidance to confirm 
what I'm hearing. I believe it is a very narrow and specific request.

On many recordings, absolute polarity is not noticeable, but on many 
it is, and I thought if Clark had some insight that could be an 
assistance to confirming what my ears are hearing, that would be 
useful. He's requested time to respond to my post. Let's see what he says.

Cheers,

Richard


Richard L. Hess                   email: richard@xxxxxxxxxxxxxxx
Aurora, Ontario, Canada       (905) 713 6733     1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.