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HOME MOVIES FOR AUGUST
• The model JVC Filmgraph sound on film recorder as used for recording an engraved sound track on 16mm. film. Any 16mm. film, black and white or color, may have sound added by the Filmgraph system.
A PRACTICAL S0MD ON FILM RECORDER...
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'NE of the oldest methods for recording sound is that of the stylus or needle cutting a variable groove in the surface of a record. The principle was successfully applied to produce sound on film long before the photographic method was discovered. Today, the earlier method has reached even higher perfection in its application to 16mm. films in the Filmgraph developed and marketed by the Miles Reproducer Company and pictured on this page.
Here is an instrument that holds great promise in the postwar world as a medium for easily and economically providing synchronized sound for home movie films. Notable is the fact that it offers a system of providing sound for 1 6mm. films of any length and is as simple to operate as a projector or camera.
The Filmgraph unit comprises of recording head, film transport mechanism, motor, amplifier, speaker and microphone complete in a single cabinet. Net weight is approximately 16 pounds. The Filmgraph may also be purchased minus speaker and amplifier for those v. ho wish to utilize their radio or other amplifying and speaker equipment for the purpose. The hookup between a
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separate radio or amplifier and the Filmgraph is simple and easy to make.
In recording on i6mm. film that has been photographed, titled and edited into a complete picture, the sound track is cut on one margin close to the sprocket holes. This is done by placing the Filmgraph recording unit near the projector, as shown in illustration, and in such a position as not to interfere with projection. In recording, the needle cuts a groove on the celluloid side of the
film as it passes over the recording drum and beneath the stylus.
Unlike the photographic method of sound on film recording, the sound need not be separated from its respective film frame the same distance for every film. The distance is determined at time recording is made, and is established by markings made on the leader that precedes the picture frames.
Also, as may be seen from the above illustration, the film passes through the projector and on to a take-up reel on the recorder instead of the projector takeup spool.
A satisfactory recording cannot be similarly made on a prepared 8mm. film for the reason that the lineal travel of 8mm. is only 12 feet per minute compared to 24 feet per minute for 16mm. film. But sound tracks for 8mm. films can be recorded on separate Filmgraph M-j special film and played back in synchrony with projection of the picture on the Filmgraph unit.
The usual method for recording a sound track with the Filmgraph for a 1 6mm. film is to prepare a cue sheet for the music and sound effect and or a script containing the narration. The h'm is projected on a screen and the narration and music rehearsed. When • Continued on Page 339
• Model JVC Filmgraph as used for straight recording on special 16mm. width film supplied for the purpose. Mechanism is electrically driven; has speed and volume controls plus multiple microphone jacks that permit recording of sound from microphone, turntables, or radio.