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1954-55 Theatre Catalog, 12th Edition, Page 322 (286)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 322
Page 322

1954-55 Theatre Catalog, 12th Edition, Page 322

ENGINEER H. I. Brown makes use of special (21L purpose meter to equalize system for use with the three speakers. assuring better sound quality than previously possible with old system.

of those patrons seated close to auditorium speakers, Another equally important service method employed by Altec field engineers deals with the proper poling and phasing of the Voice of the Theatre stage speakers which are in use in thousands of theatres using stereophonic sound systems. In order to assure uniform sound distribution of full frequency range7 the characteristics of the three speaker systems must be matched perfectly.

We have said that it has been by no mere chance that Altec has been in the forefront of the technical advances which distinguish present day theatre sound. Because of the reputation this organization acquired at its inception for intensive sound engineering experimentation, research and development, Altec experience and products have played an important pioneering role in the revolutionary techniques which have changed the entire complexion of screen entertainment. Early in 1945, when Altec was completing the development

of its itVoice of the Theatre" speaker systems, a group of motion picture studios, sound recording firms, and our organization conducted extensive experiments in stereophonic recording and reproduction for motion picture use. In 1947 Altec assisted the Research Council of Motion Picture Arts and Sciences in the establishment of new recording and reproduction standards to raise further the quality of motion picture sound. Before the group of men who conceived Cinerama brought it to successful fruition as an amazing picture and sound departure on Broadway, Altecis engineering forces were called upon for assistance and technical advice in the perfection of the stereosound system which accompanied the presentation of Cinerama, and Altec sound equipment. was used for every test. Today, the stereophonic sound which amazes audiences during the nation-wide presentations of Cinerama is reproduced by Altec uVoice of the Theatreli systems.

AFTER detecting magnetism, Brown employs a Deguuser (above) in order to eliminate this danger. Another part of the serviceman's job is to evaluate sound (below) with projectionist.

HERE Brown checks for magnetization in film gate of projector mechanism with small compass. The problem of magnetized magnetic sound track! can be serious, and early detection is important.

An Important Factor

We believe that E. O. Wilschke, operating manager of Altec Service Corporation, the man who directs the activities of the company's far-flung field engineering forces aptly summed up the secret of Altecis success in the service field when he said recently: tilt seems to me that Altecls engineering research and development operations are the most important factor in building and maintaining the reputation we have achieved. While the research and study which affect the tasks we perform in installing, servicing and maintaining sound equipments are not visibly apparent, they are constantly refiected in the results accomplished by our field engineers in analyzing and solving extremely difiicult technical problems characteristic of todays complex and delicate sound equipments. All Altec field engineers are Altec-trained, steeped in the knowledge, tradition and pride of accomplishment which distinguish all of our efforts. Due to a system set

1954-55 Theatre Catalog, 12th Edition, Page 322