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In dealing with the archives of Altrincham United Reformed
Church, we came across an old 78 record of part of a BBC broadcast of
a church service made on 15th June 1952
The Trinity Hale church (illustrated) was then known
as the Hale Congregational Church.
78 rpm records were notoriously
fragile, and wore rapidly, usually deteriorating after only 20 playings.
To digitally copy the record, it was replayed just once with a microgroove
piezo-electric pick-up at 33 rpm, the idea being that the finer stylus
would sit lower in the groove and below any previous damage. The pick-up,
having a flatter response than electromagnetic transducers, would preserve
the lower frequencies. Somewhere, it was recalled, it had been noted that
playing with a diamond at 78 rpm would be likely to result in further
damage, and 33rpm was better than 45 rpm. Bringing the record back to
speed was a simple matter using Goldwave© processing, as was
the necessary cereal noise filtering. To hear the result, voices from
the past, click
here.
http://www.zen40686.zen.co.uk/transfer/Hale-service-15Jun1952.mp3
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