Pre- and post-echoes may disturb considerably listener's artistic sensations, especially in exciting or dramatic program titles; therefore, anti-echo measures should be a must for quality disc record manufacturers, at least regarding the classical repertoire. During the three disc manufacturing steps - transcription, electroforming, and pressing - numerous parameters exercise an influence on the echo formation. Within the scope of this report, only a few items of all facts checked within the echo field may be discussed. The article will present outward forms of pre- and post-echo which are characteristic for the .AM. three stages and it will yield the attempt to explain the mode of echo origin. A few indications on how to minimize the echo formation as much as possible will be given.
Author:
Stephani, Otfried
Affiliation:
Polygram GmbH, Hannover, West Germany
AES Convention:
68 (March 1981)
Paper Number:
1735
Publication Date:
March 1, 1981
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