American Cinematographer - December 1970 - 49

are used for each sound track plus a
master gain control and high/low equali¬
zation controls.
Brake-Torque Film Traverse System
Differential brake-torque motor as¬
semblies as used in computers and in¬
dustrial tape transports are incorporated
into the editing console. Each of the
two sound heads and the picture head
have independent torque turntable film
handling assemblies. Selectively, the
operator can traverse the film fastforward or fast-reverse or a master push
button will rapidly forward or rewind
the picture and two sound tracks simul¬
taneously.
In any mode the film feed-in and
feed-out tensions are precisely main¬
tained, eliminating excessive sprocket
hole pull and film spillage. The rapid
film traverse reaches a maximum of 15
times sound speed without film spillage
or damage. Push button controls are
used with the same "solid state" logic as
is found in sophisticated tape duplicat¬
ing systems. Differential brake assem¬
blies are an integral part of each motor
assembly. When the stop button is
pushed, the respective brake differential
causes the film turntable assemblies to
precisely stop with no spillage or loss in
tension.
Servo Sprocket Drive
The drive sprocket of the picture
head and two sound heads may be
electrically coupled or decoupled for
framing purposes or for single frame
viewing and locating picture and sound
start marks.

Picture-Sound "Interlock"
Times Sound Speed

Seven

The servo drive system is operated
from a single slide control. The film can
be moved from one or two frames per
second up to seven times "sound speed"
through the sprocket gate assemblies.
The movement of the slide control
provides acceleration from "standstill"
to sound speed and from sound speed,
fast forward. With movement of the
control to the left, the film is driven in
reverse.
With micro-variable control over
speed, the film can be stopped precisely
at the end of a scene for ease in
marking. Correspondingly, the rapid
film traverse provides ease in scene
selection.
When using the servo drive any of the
three transports can be programmed for
decoupling from the locked mode and
the film rapidly moved forward or
reverse. For example, sound track No. 2
may be rapidly rewound, while the
picture and sound track No. 1 remain
locked together and traversing at sound
speed. Alternately the programming can
be transposed or a single button will
decouple from interlock all units for
rewind or fast forward.
The new servo motor system main¬
tains a constant torque ratio on the
drive sprockets regardless of the speed.
This breakthrough in film handling
eliminates film spillage, buckling and
damage. This feature, coupled with the
constant tensions from the torque turn¬
tables, makes the console editor a uni¬
fied transport assembly.

Large, bright screen and advanced picturesound quality enable the Moviola Console to
be used as a "preview theatre", as well as an
editing device.

Electromatic Differential System
To speed the editing process and
convenience, Moviola has developed a
new system of film advance and retard.
The system is completely electrically
operated and controlled to provide se¬
lective advance or retard of both sound
head transports.
While the film is in motion at any
speed, through the servo drive either of
the sound heads can be advanced or
Continued on Page 1230

(LEFT) Since the unit is equipped with two sound heads and a composite optical/magnetic picture head, dialogue, music and sound effects can be
cut to the picture with sound mixing and listening quality designed to be comparable to that of the final composite. (RIGHT) Moviola Console
Editor shown in vertically flat fold-down mode, a unique feature which makes it storable in a minimum of space when not actually in use, and easily
movable room-to-room or over greater distances in an average station wagon.

American Cinematographer - December 1970

Table of Contents for the Digital Edition of American Cinematographer - December 1970