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MANAGERS AND PROJECTIONISTS 1009
sound aperture. If the triangle be too long there will
be an appreciable break in the sound ; if too short there will be a click.
The triangle must have its base at the edge of the sound track next the sprocket holes. The base must be approximately three-eighths (}£) of an inch long. The apex of the triangle must be at the edge of the splice at the inner edge of the sound track, all as shown in Fig. 386.
If the splice itself be made in accordance with instructions for making splices, pages 274 to 280, Volume 1, and the lacquer be carefully and properly applied, then the splice will pass through without appreciable effect upon the sound.
May I suggest that you locate your lacquer bottle and cement bottle side by side — the handle of the lacquer brush thrust through the cork tightly — so that it will always be convenient, and there will be no temptation to omit the triangle.
IMPORTANT. — In making sound film splices, the projectionist should cut away all damaged or weak film, but absolutely not one unnecessary frame. The break caused by the elimination of frames is even more objectionably noticeable in the sound than it is in the action. If an orchestra, for example, be playing, a singer singing, or a speaker speaking, and several frames of film be cut out, you may well imagine that the effect will be far from good.
Without any thought of irreverence, but to show you what an embarrassing situation might arise because of film elimination, let us suppose our President to be speaking at the dedication of a great storage reservoir