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Sound Effects
The sequence about a church bell (p. 116) ended with shots of the bell chiming. In such a case, whether or not you use a commentary, the audience expects to hear the bell as well as see it. You should therefore provide the appropriate sound effect.
Effects Records
If you are using gramophone turntables to provide mood music, you can introduce occasional sound effects with stage effects records made by some of the leading gramophone companies. Usually each record carries a variety of effects. The range of sounds covered is wide, ranging from a baby crying to feet walking on duckboards. Some sounds are available in a number of forms : you can choose a recording of a crowd in anger or in fear, laughing or cheering.
Comprehensive though the range may appear you will often require effects which are not listed or which are not to hand. For example, when you want to add the bell effect you may find that you have access only to a record of Big Ben. This is so familiar to any British audience that you can scarcely pass it off as a much smaller Sanctus bell. By running the turntable faster, however, you can raise the pitch of the recording enough to change the character of the chime completely. In this way you can make the pitch of recorded chimes correspond with that of the bell you filmed.
For this purpose, you require a turntable with variable speeds. The governor-controlled type (p. 24). is the most useful, although the popular two and three-speed types can be valuable also.
A number of unusual effects can be produced by playing
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