All this is very interesting, kind of like listening to coders talking, well, code.
I though tuning disc playback by ear was the best thing to do, then and now and in the future!
I donít do anything with old disc records, so pardon me if this is off topic.
On Apr 24, 2017, at 3:42 PM, George Brock-Nannestad <[log in to unmask]> wrote:
> The Victor Talking Machine Company is on record in the acoustic period as
> specifying 76 rpm for recording and 78 rpm for reproduction of the recording
> obtained. Some of their customers obviously did not have absolute pitch. In the
> acoustic period of the Gramophone Company, the speed was checked every morning
> by means of a piece of cigarette paper under the wax while cutting and counting
> the revolutions for a minute. They preferred 78 rpm!