American standard method for the free-field secondary calibration of microphones
Contributors: Acoustical Society of America
Published: 1954
Place of publication: [New York]
Language: eng
Number of pages: 10
Subjects: Microphone; Sound -- Equipment and supplies
Other titles: Free-field secondary calibration of microphones
Notes: Cover title

Z24.11--1954

"Approved October 19, 1954."

Sponsored by the Acoustical Society of America