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Dynamic Range

Dynamic Range

From Chace Audio

Dynamic range is the difference in loudness between the quietest, lowest level in an audio program and the loudest, highest level, as expressed in decibels (dB). As a point of reference, the Dolby® standard for the reference level of a movie theater or dubbing stage is 85dB.

A typical modern action/adventure movie might have a dynamic range from 30 to 100 decibels, or 70dB. A typical mono optical from the 1940s might have a dynamic range from 60 to 90 decibels, or 30dB.

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SOUND THEORY