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BS ISO 7739:2016 pdf free

BS ISO 7739:2016 pdf free.Cinematography一Two-track photographic analogue sound records on 16 mm motion-picture prints
This International Standard specifies the lateral positions and width dimensions of two-track variable area sound records on 16 mm motion-picture prints.
This International Standard also specifies the area scanned by the sound reproducer.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4243, Cinematography一Picture image area and photographic sound record on 16 mm motion-picture release prints一Positions and dimensions
3 Positions and dimensions
The positions and dimensions of the two sound records shall be as shown in Figure 1 and given in Table 1. In all other respects, the sound records shall comply with ISO 4243.
4.1 Channel 1 and channel 2 recording and reproducing slit images shall be positioned in line at an angle 90°±5′ to the reference edge of the film.
4.2 Channel 2 shall be recorded in the record nearest the outer edge of the film, as shown in Figure 1.
4.3 The septum between channel records shall be effectively opaque on prints.A lighter septum resulting from direct positive recordings being printed on reversal print materials should not be cause for rejection of prints.
5 Picture-sound displacement
The picture-sound displacement shall be as specified in ISO 4243.
6 Track usage
The two tracks specified in this International Standard may be used for either related stereophonic material or unrelated material. When used for two-channel stereophonic program material, track 1 shall be used for the left (as viewed from the auditorium) loudspeaker channel and track 2 shall be used for the right (as viewed from the auditorium) loudspeaker channel.
It is recommended that the container and leader of the print having two sound records be labelled with the above information.BS ISO 7739 pdf free download.

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