Elmo ST-600D - Two Track System

Track 1
(Main stripe)
INTRODUCTION
Two Track System
Track 2
(Balance stripe)
As shown in the above illustration, 8mm sound film comes striped
with magnetic coatings on both edges, also known as "magnetic stripe."
The wide or "main" stripe is used to carry the sound track when used in
conventional projectors. This sound stripe
will be called Track 1 here-
after in this manual.
The narrow or "balance" stripe, that runs just outside the film perfo-
rations,
is used for balance to ensure smooth film travel through the
projector.
Though Track 2 is narrow in width, it is coated with the same quality
magnetic oxide as that on Track 1. So, the Elmo ST-600D utilizes
both the main stripe and the balance stripe for recording and playback.
We have designated this new sound system a Two Track System.
After receiving your sync-sound film from the processing laboratory,
there will most likely be sound on Track 1.
Music and narration can be added to the balance track (Track 2) to
accompany your original sound on Track 1. You may record on
Track 2 as often as desired or until you are totally satisfied with
the mixed recording. This is done without affecting the original sound
on
Track 1.
[If the film does not come striped with a magnetic coating, it is
necessary to ask your nearest photo dealer to have your film striped
when sending
it in for processing.)
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