AES E-Library

Design of a Noise Eliminator System

A system of compression before recording and expansion upon playback has been developed to extend the dynamic range of a studio tape machine up to 110 dB. Accurate reconstruction of the signal independent of the tape recorder gain results from the use of a wideband cube root compression characteristic in conjunction with high and low frequency preemphasis. Three variations of the preemphasis-compression characteristic are optimized respectively for 15 ips, 7 1/2 ips, and for the production of consumer tapes, records, and FM programs. While intended to be played through an expander the consumer program material is also compatible with conventional equipment. This paper will discuss system characteristics and design.

Author: Burwen, Richard S.
Affiliation: Burwen Laboratories, Lexington, MA
AES Convention:41 (October 1971) Paper Number:838 Import into BibTeX

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes8)   /pp6975/pp7110/0804.pdf

Start a discussion about this paper!