DocumentCode
1080438
Title
Audio frequency spectrum analysis using MOS memory elements
Author
Bially, Theodore
Author_Institution
Massachusetts Institute of Technology, Lexington, Mass.
Volume
18
Issue
2
fYear
1970
fDate
6/1/1970 12:00:00 AM
Firstpage
201
Lastpage
203
Abstract
The speed of present-day logic elements is such that it is possible to effect real-time spectrum analysis of audio frequency signals by means of digital hardware. This paper describes a structure that computes the discrete Fourier transform of a 400-point time sequence in 10 ms. This allows the real-time analysis of signals having components in the range from dc to 5 kHz. A high-speed bipolar arithmetic section is used in conjunction with relatively slower MOS shift registers and READ-ONLY memory to provide an efficient and economical design.
Keywords
Adders; Arithmetic; Clocks; Discrete Fourier transforms; Frequency; Laboratories; Military computing; Packaging; Shift registers; Signal analysis;
fLanguage
English
Journal_Title
Audio and Electroacoustics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9278
Type
jour
DOI
10.1109/TAU.1970.1162089
Filename
1162089
Link To Document