We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
GENERAL PRINCIPLES 41
cannot be obtained when the original dialogue is recorded on the set.
Eventually all these sounds will be available but they will most likely be recorded on a great number of separate lengths of film. Each film will be provided with a synchronising mark so that it can be projected with the picture film and in such a way that each and every sound on all the films may be reproduced at the correct point throughout the film. Naturally, sounds which do not overlap each other (and also which can be conveniently grouped for other reasons) can all be joined together on one length but, where special treatment must be given to a particularly 'difficult' sound effect, this is usually left entirely on its own the normal length of the picture reel being made up by adding blank 'leader film' to the sound effect track.
Clearly, all these sounds must be welded together into one master sound track before it can be 'married' to the picture. This mixing together of the sounds is done in a process known as 'dubbing' it employs a large number of sound reproducing machines which can each carry one film and all of which are electrically connected with the picture projector. Any number of films can therefore be projected together on this studio equipment and all of them will remain in perfect synchronism. Due to a highly complicated electrical network it is possible at this stage to adjust the balance and general quality between the various sounds and so to obtain a very level pleasing result.
Eventually a master picture negative containing all the trick effects etc., and a master sound negative containing all the mixed or 'dubbed' sounds will be produced. These will provide a complete set of all the scenes and sounds in their correct order and in continuous lengths made up as nearly as possible to be 1,000-ft. (304.8metres) in each case. Synchronising marks are then made at the heads of each roll of both sound and picture negatives. It should be noted here that, in some of the major studios, it is the general practice to preserve the original negatives which were taken on the studio 'floor' and only to use them when the first duplicate negatives or master positives are being produced. This process is very essential since an original negative is an exceptionally valuable piece of material and, although it may be only a short section, may easily represent a large sum of money spent on production technique and famous artistes fees.
The edited duplicate negatives containing the picture record are then passed to the positive release printer and, before commencing to print the copy, the synchronising mark previously