Vinyl Mastering & Runtime Calculator
Cutting physical vinyl imposes strict mechanical limits on audio. Calculate your maximum runtime limits per side and view required RIAA equalization adjustments before sending files to the cutting lathe.
Louder masters require wider physical grooves, reducing maximum runtime.
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The Physics of Vinyl Mastering
Unlike digital formats, a vinyl record is a physical medium bound by spatial mechanics. The cutting stylus physically carves grooves into a lacquer disc. Low frequencies and high amplitudes require wider, deeper grooves, which consume more physical real estate on the disc.
If a master is too loud (heavily compressed to -8 LUFS, for example) or too long, the cutting engineer is forced to lower the overall cutting volume. This decreases the signal-to-noise ratio, making the inherent surface noise of the vinyl much more prominent.
Furthermore, out-of-phase stereo bass information causes the cutting stylus to move vertically. Excessive vertical excursion will literally cause the needle to jump out of the groove during playback. This calculator cross-references your runtime and loudness targets against standard lacquer constraints to prevent compromised cuts.