Description

Jordan J. Baruch demonstrates an acoustic recording apparatus in a laboratory.

Original Caption: "The apparatus which records sound in studies carried out in the new test chamber in the Acoustics Laboratory at the Massachusetts Institute of Technology, where methods to produce quieter, more restful homes and offices are being sought. Dr. Baruch, who designed the electronic recording device, is watching the stylus as it draws a sound 'contour map' from information transmitted automatically by a sensitive microphone moving about in the test chamber."