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about technical factors in used sound recordings

The most common recording and playback technologies today rely heavily on such fields as electricity and magnetism. Accordingly, we might expect to see in a typical record grading system today measures of performance such as amplitude, signal-to-noise ratio, distortion, compensation and recording curve, and loudness. This is not the kind of record grading system Electricka and The Muse Of Music has in mind for these pages.

  • Physics parameters for grading records are intrinsic to the science and technology of sound production, recording, and playback. To learn more about these kinds of factors and their affects on recording quality, visit Electricka's pages on The Technical Aspects Of Sound.
  • Explore the technical aspects of recording and playback. Visit Electricka's pages on The Technical Aspects Of Sound: tap or click here

So, if not physics, what are the kind of factors The Muse explores here? They are those related to commercial sound recordings—specifically, to buying and selling used records on the open market through common commercial channels, the kind of records that contain recordings of speech, music, sound effects, weather, indoor or outdoor noises, and the like:

  • These kinds of grading systems normally are of most interest to collectors, audiophiles, historians, lovers of music, critics, disc jockeys, connoisseurs, music librarians, and the like. They are of relatively little interest to pop music fans or the general public.
  • The principal objective of grading such recordings is to inform a prospective purchaser of the quality of sound he can expect once the recording has been acquired, especially the prospective buyer has not had the opportunity to hear the recording for himself.
  • Secondary objectives of grading are to describe the existence and condition of factors other than sound quality that may affect price and condition.
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