Not to be more of a pain in the ass than I already am, but I was referring to phase, and not just polarity. Perhaps interchannel timing is more precise, but that manifest as rotated phase between the two groove walls.
You guys are talking about polarity as if that were the only variable, and in my humble estimation, despite Goran’s opinion that it’s insignificant I respectfully submit that there’s times recently that taking a more granular approach than a simple polarity flip.
Also this is for me at least pursuant to the statement that hill and dale can’t be derived from MS encoding of the Left and Right channels: it clearly can. The S is the vertical, is the hill and dale, QED.
> On May 6, 2015, at 9:45 PM, John Haley <[log in to unmask]> wrote:
> I suspect that the terminology got confused because we all talk of speakers
> being "in phase" when the cones are moving the same direction (at the same
> time). The cone makes the sound wave by moving forward and back. As we
> know, if two woofers are near each other, they can actually start
> cancelling each other (not taking into account room nodes, etc.). We all
> learned that we had to get the polarity right with the wiring, to keep the
> speakers "in phase."
> Best, John
> On Wed, May 6, 2015 at 9:05 PM, Dave Burnham <[log in to unmask]> wrote:
>> Very well described, Richard!
>> Sent from my iPhone
>>> On May 6, 2015, at 8:31 PM, "Richard L. Hess" <[log in to unmask]>
>>> Hi, Tom,
>>> When measuring phase shift in degrees, it is relative to a given
>> frequency. So, a 180 degree phase shift at 1 kHz would be the same time
>> delay as a 360 degree phase shift at 2 kHz.
>>> A polarity reversal is independent of frequency/wavelength. When it used
>> to go up, it now goes down and vice versa. It is also a binary function: in
>> or out of polarity.
>>> I think 99% of the time when we say 180 ° phase shift, we mean polarity
>> flip as we want it at all frequencies to be the same.
>>>> On 2015-05-06 8:23 PM, Tom Fine wrote:
>>>> So is it correct to say that there can only be a polarity reversal
>>>> (180-degrees) whereas there can be any degree of phase shift?
>>>> -- Tom Fine
>>> Richard L. Hess email: [log in to unmask]
>>> Aurora, Ontario, Canada 647 479 2800
>>> Quality tape transfers -- even from hard-to-play tapes.