AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

Masking Noise Systems in Open and Closed Spaces

Signal to noise ratios (S/N) when close to zero determine speech intelligibility and hence the degree of acoustical privacy between a speaker and a listener. Though S/N is generally used to establish the efficiency of communication systems, it is equally useful in quantifying desired privacy. Factors affecting the signal are voice effort, separating by distance, partial or full enclosure, and sound absorption. Factors affecting noise are traffic noise, air conditioning, and internal activity. The former are controllable, the latter are not. There is, tehrefore, a need in many instances to electronically generate noise to assure privacy at times when the other noise makers do not provide an adequately low S/N. The design and application of such systems are discussed.

Author:
Affiliation:
JAES Volume 19 Issue 3 pp. 197-201; March 1971
Publication Date:

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:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society