An advantageous approach to DSP equalization of loudspeakers is proposed in this paper adopting spatial averages of complex responses acquired from 3D balloon measurements. Alignment of the off-axis impulses responses with the on-axis impulse responses are accomplished using a cross-correlation technique prior to spatial averaging to attain meaningful statistics of magnitude and phase responses. This is performed over a pre-defined listening window from the complete loudspeaker response balloons (both magnitude and phase). The resulted average of the complex response within a suitably defined listening window is used to obtain, via the least mean square adaptive technique, an inverse filter that corrects the linear behavior of the loudspeaker.
Catala Iborra, Victor Manuel; Li, Francis F.
Affiliations: DAS Audio, Fuente Del Jarro, Spain; The University of Salford, Salford, UK(See document for exact affiliation information.)
AES Convention: 146 (March 2019) Paper Number: 10140
Publication Date: March 10, 2019
Subject: Loudspeakers: Part 2
No AES members have commented on this paper yet.
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.