Sound Pictures in Auditory Perspective

Soon after sound reproduction in auditory perspective was demonstrated over telephone circuits between Philadelphia and Washington in 1933, experimental sound pictures in auditory perspective were made at the Bell Telephone Laboratories' sound picture laboratory. Listening tests showed that they distinctly enhanced the illusion that the sound originated at its apparent source on the screen and they strikingly improved the feeling of spaciousness and reality. The auditory perspective effect is not primarily dependent upon perfect synchronism of the two sound-tracks required, nor on frequencies above the present commercial range. Existing equipment can be converted to project sound pictures in auditory perspective without great difficulty.

Print ISSN

0097-5834

Published

1938-10

Content type

Original Research

DOI

10.5594/J08466