AES E-Library

A Single-Ended Noise Reduction System for Automotive Audio Applications

A single-ended noise reduction system is described, which is specifically intended to reduce background noise levels in automotive audio systems. The system described in this paper uses a combination of variable filtering and downward expansion in conjunction with a unique auto-threshold detector. This yields an effective 25 dB of improvement over FM radio, tape, and CD sources without the need for any manual adjustment.

Authors: Bowers, Derek F.; Waller, Jr., James K.
Affiliations: Analog Devices Inc., Santa Clara, CA ; Rocktron Inc., Rochester Hills, MI,(See document for exact affiliation information.)
AES Convention:99 (October 1995) Paper Number:4080 Import into BibTeX
Subject:Signal Analysis and Noise Reduction

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 aes13)   /pp9496/pp9510/4014.pdf

Start a discussion about this paper!