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.
https://www.aes.org/e-lib/browse.cfm?elib=12249
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
Start a discussion about this paper!