Abstract
This International Standard specifies the A-chain electrical frequency response characteristic for photographic Sound reproduction in motion-picture control rooms and indoor theatres. lt is intended, in conjunction with ISO 2969, to assist in the standardization of recording monitor and reproduction characteristics of motion-picture Sound dubbing theatres, review rooms and indoor theatres. This International Standard covers that part of the motion-picture Sound System from the transducer to the input terminals of the main fader.
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