Phase delay and group delay functions are well known in lumped system theory but they are not well understood, particularly in the context of non-minimum phase lumped systems. This paper presents four paradoxes that arise from an overly-literal interpretation of the phase delay function. The paradoxes are very simply illustrated using the example of a first order loudspeaker crossover. A new system response model is presented to resolve these paradoxes. The model is extended to higher order systems and to non-minimum phase systems. Applications and implications for system analysis are discussed.
Authors:
Dash, Ian; Fricke, Fergus
Affiliations:
Australian Broadcasting Corporation, Sydney, NSW, Australia; University of Sydney, Sydney, NSW, Australia(See document for exact affiliation information.)
AES Convention:
128 (May 2010)
Paper Number:
8078
Publication Date:
May 1, 2010
Subject:
Loudspeakers and Headphones
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.