| A FOCAL Program to Determine Low-Frequency Loudspeaker  | FOCAL8-48 | 
Parameters Experimentally 
Richard Merrill and Stephen A. Kellis, Jr., Digital 
Equipment Corporation, Maynard, Massachusetts 
This program is a FOCAL translation of a program devised by 
J. P. Ashley and M. D. Swan used in determining the low-
frequency characteristics of loudspeakers for use in speaker 
system and enclosure design. The method allows determina-
tion of speaker parameters using a minimum of testing 
equipment. 
| Minimum Hardware: |  4K PDP-8, LINC-8 or PDP-12  | 
| Source Language: |  FOCAL-69  
 
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| Catalog: | July 1973 |