How loud is the noise : sound levels indicated in decibels and in units of sounds energy

Diagram shows how many decibels or units occur in the average office, in addition to other sounds, such as a whisper or thunder.

Publication date: 1934-07-22

Size: 13 x 9.2 cm

Publisher: Tribune Company

Print type: grayscale

Language:

• English

Subject(s):

• Sounds

Genre(s):

• Diagrams
• Illustrations

Type(s):

• still image
• text

Copyright(s):

• These materials are either in the public domain, according to U.S. copyright law, or permission has been obtained from rights owners. The digital version and supplementary materials are available for all educational uses worldwide.

Is part of:

• The Janet A. Ginsburg Chicago Tribune Image Collection

Source(s):

• Chicago Sunday Tribune (July 22, 1934), p. 6

Format(s):

• application/pdf
• image/jpeg

Contributor(s):

• Electronics