International projectionist (Oct 1931-Sept 1933)

26 INTERNATIONAL PROJECTIONIST August 1932 For More Light And Better Sound USED BY PARAMOUNT PUBLIX R K. O. UNITED ARTISTS INTERNATIONAL VARIETY ETC. ¥?OR every theatre there is one type and make of sound screen which will produce better results than any other. The length and breadth of the auditorium, the angle of reflection, the type of arc employed — all of these determine the kind of screen. But no matter what the shape and size of the theatre auditorium, there is one best sound screen to use — and tve have it for you. Better pictures, greater attendance, and lower current costs follow the installation of a VOCALITE or CHROMOLITE screen. SOUND ^ ™^^ SCREEN \^" ocalite Sound Saeen ThefWcrt Screen ifrEvc and Ear Roosevelt, New York . SoiendScreea> Non-Glare • Diffusive How Man^? Was this copy dog-eared when it came to you? How many men read it ahead of you? You would receive a clean, fresh copy ij you had a personal subscription — and you wouldn't have to wait — you would be first to read it. Use the coupon below. INTERNATIONAL PROJECTIONIST 1 West 47th Street, New York, N. Y. Enter my subscription for n 1 year —12 issues— $2.00 n 2 years— 24 issues— 13.00 Name Ad/lress City State Local . . possible presence of sprocket "flutter."' It may also be used to locate loose metal or wooden parts in the vicinity of the stage loud speaker that may vibrate in sympathy with reproduced sound. The flute solo has an abundance of slurred notes in the high frequency range. In the listening test, a lack of brilliance, crispness, or definition, particularly in the higher frequency range, will indicate that the optical system is out of adjustment. Sprocket "flutter" or improper gate and optical system adjustments are indicated by a "fuzziness" of the high frequency notes. Two viohn selections and one cello selection are next. One viohn selection is a standard RCA Photophone variable width recording; the other is recorded with RCA Photophone anti-ground noise track. These selections are used to determine, by ear, the frequency balance using the cello to check the response at the low frequencies, the standard variable area muted violin record to check the middle range, and the anti-ground noise violin record, as well as the flute record, to check the upper range. Vocal solos and dialog are next; these are used to check for intelligibility, clarity, and naturalness of reproduction. They provide a good test for the middle range of frequencies, which have the greatest influence on the intelligibility of speech. The above outline briefly covers the standard methods employed today in testing and maintaining sound equipment. In the present state of the art, it is difficult to predict the oucome of the present trends in the design of sound equipment. Manufacturers recognize the desirability and are striving for further simplification of the equipment. At the same time, there will have to be a decided improvement in the standards of sound quahty to meet the demands of a public that is becoming more and more discriminating and instead of eliminating adjustments, it may be necessary to add to them or to refine the present test methods to meet the new standards. For the present, at least, it goes without saying that any sound system, the servicing of which does not include meticulous care and complete periodic checks with adequate instruments will not, week in and week out, give the high quality of reproduction increasingly demanded by the theatre-going public. COAST AGREEMENT SIGNED A two-year agreement, providing for a closed shop in independent studios and back wage scale for sound men, has been signed by the Independent Producers' \ssociation with I. A. sound men. This averts the general strike in all independent studios that loomed earlier in the month.