I suppose, each groove in a record player records a set amount of data, because of the way the information is stored. I would suggest, this means that as a record player plays a record, the grooves change as the record approaches the end and the needle travels the distance from the edge to the inner ring. As a result, the information imprinted on the edge is more “spread out” .. and the impressions near the center are different. The surface moving over the needle is moving faster as a record plays and approaches the center. This is one of the reasons why CD’s were so revolutionary, the recording medium didn’t change because the information was not a direct translation of sound, but a digital expression of it that was interpreted by the player.
I suppose, each groove in a record player records a set amount of data, because of the way the information is stored. I would suggest, this means that as a record player plays a record, the grooves change as the record approaches the end and the needle travels the distance from the edge to the inner ring. As a result, the information imprinted on the edge is more “spread out” .. and the impressions near the center are different. The surface moving over the needle is moving faster as a record plays and approaches the center. This is one of the reasons why CD’s were so revolutionary, the recording medium didn’t change because the information was not a direct translation of sound, but a digital expression of it that was interpreted by the player.