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.
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Fig. 5. Diagram of divided track re-recording system.
the high and low-frequency components are physically separated, intermodulation distortion effect in the recording and printing stages is greatly reduced.
(b) The music portion only of the track may be reproduced when, for example, the print is used for educational purposes and the teacher wishes to supply his or her own commentary. Alternatively, many teachers feel that music detracts from the effectiveness of an education subject and in such cases the voice and effects portion alone may be used.
(c) A third possible application lies in the television field. Split-track prints may be distributed generally for reproduction on standard projectors. However, the same print may be rented or sold to television stations which in turn may reproduce only the voice and effects portion. This eliminates the need for special prints of sound negatives where trade regulations prohibit the
reproduction of film music on television networks.
Mechanical Adaptation of Recorders
Figure 6 shows plan views of the RCA and Western Electric optical paths. Suitable half-track masks could be installed at the points shown. In the Maurer recorder the mask is introduced at the ultraviolet filter holder position so that its image is produced sharply on the film in the desired position. During the early experiments masks were used at the film plane for reasons of convenience. However, the points noted in Fig. 6 would permit a more precise arrangement for continuous use.
Split-track recording may be used for two purposes:
(a) To divide the contents of a single track into two portions: i.e., music, and voice and effects; or music and effects, and voice.
Beachell and Graham: Dual-Purpose Optical Prints