The design of an accurate, inexpensive, compact easy to read audio program level indicator has always been plagued by compromises. The best of the previous designs used light emitting diodes (L.E.D.'s) in a bar graph arrangement driven by digital logic. This paper describes an improved method of driving the L.E.D displays which is considerably cheaper and simpler than previous designs. The circuit design, operation and performance are discussed.

Author: Cabot, Richard C.
Affiliation: Acoustics Research Laboratory, Rensselaer Polytechnic Institute, Troy, NY
AES Convention: 55 (October 1976) Paper Number: 1141
Publication Date: October 1, 1976 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=2273

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes9)   /pp7680/pp7610/1243.pdf

Start a discussion about this paper!