Traditionally, electronic equalization has used linear filters of low complexity. The nature of spectral and temporal distortions of rooms limits useful equalization to minimum-phase filters of relatively low order, despite the existence of new and powerful digital signal processing tools. The high Q and non-minimum-phase nature of the room loudspeaker 'listener transfer function, caused by wave interference effects, creates severe problems for more complete equalization. A typical professional listening room and three cinema acoustic environments were used to investigate the difficulties inherent for more ambitious equalization approaches.
Author:
Fielder, Louis D.
Affiliation:
Dolby Laboratories Inc., San Francisco, CA
JAES Volume 51 Issue 1/2 pp. 3-26; February 2003
Publication Date:
January 15, 2003
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.