Hi, Henry,

If you wish to save the preservation master precisely as found, that 
would be acceptable and probably the correct thing to do, but include a 
note in the metadata about what you found.

I would STRONGLY urge you not to release to the public anything dual 
mono. It just wastes bandwidth. If you feel that you must release dual 
mono to the public I would EVEN MORE STRONGLY urge you to NOT release 
the out-of-polarity files as is, but rather flip one channel. Attempt to 
learn the Wood Effect and see if you can determine which channel is 
correct. If this is mostly speech, you should notice that the positive 
peaks are, well, peakier than the negative peaks. Same area under the 
curve, but a different shape--slightly.

Cheers,

Richard

On 2013-02-07 9:16 AM, Henry Borchers wrote:
> "NEVER SUM TWO MONO TRACKS TOGETHER EVEN IF IN PHASE AND IN
> ALIGNMENT.  NEVER.  ALWAYS KEEP THEM SEPARATE -- AND IT IS BETTER TO
> ONLY COPY ONE OF THEM IN THE FIRST PLACE."
>
> I should clarify, I don't plan on summing them into a file. However, I'm
> am a little worried about users having phase cancelation issues if someone
> were to play the file on a mono speaker (like on a phone or a tablet. Does
> anybody know if the speaker on the iPad is mono or not?) where they manage
> to sum left and right.
>
>
>

-- 
Richard L. Hess                   email: [log in to unmask]
Aurora, Ontario, Canada                             647 479 2800
http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.