The Editor's Toolkit: A Hands-On Guide to the Craft of Film and TV Editing by Wadsworth Chris

Author:Wadsworth, Chris [Wadsworth, Chris]
Language: eng
Format: azw3
ISBN: 9781138903371
Publisher: Taylor and Francis
Published: 2016-01-21T16:00:00+00:00

 Peak Practice—Adjusting Sound Levels within Limits

Never be frightened to push volume levels around. However, as you would expect, this cannot be done without limits. Sound, like vision, has to exist within certain electrical limits of level. This used to be a voltage in the old analogue days, but now it’s a ‘bit’ number.

In either case, if limits are exceeded, the result will be peak distortion. Here, the sound becomes hard-edged and painful to listen to. In the digital world, the binary word representing the analogue voltage is at a maximum of all 1s or all 0s so that an even higher input level will continue to produce the same all 1s or all 0s result. In these circumstances, the signal is said to be squared-off. The great feature of digital signals is that their levels are defined and aren’t subject to the unwanted variations in gain or attenuation as suffered by their analogue equivalents when passing through the circuits of tape machines and other equipment in an edit suite of a few years ago.

SQUARED-OFF TONE PRODUCES DISTORTION.

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