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Concept

RIAA equalization

Circular concentric grooves on a vinyl record illustrate the RIAA equalization curve, a standard for audio playback established by the Recording Industry Association of America in 1954.

A specification for the recording and playback of phonograph records, established by the Recording Industry Association of America in 1954. It standardises a specific frequency response curve that reduces low frequencies and boosts high frequencies during the cutting process, allowing for narrower grooves and longer playing times while minimising surface noise on playback.

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