The development of a mixed-phase equalizer is still an open problem in the field of room response equalization. In this context, a multipoint mixed-phased impulse response equalization system is presented taking into consideration a magnitude equalization procedure based on a time-frequency segmentation of the impulse responses and a phase equalization technique based on the group delay analysis. Furthermore, an automatic software tool for the measurement of the environment impulse responses and for the design of a suitable equalizer is presented. Taking advantage of this tool, several tests have been performed considering objective and subjective analysis applied in a real environment and comparing the obtained results with different approaches.
Cecchi, Stefania; Virgulti, Marco; Doria, Stefano; Bettarelli, Ferruccio; Piazza, Francesco
Affiliations: Universitá Politecnica della Marche, Ancona, Italy; Leaff Engineering, Ancona, Italy(See document for exact affiliation information.)
AES Convention: 134 (May 2013) Paper Number: 8889
Publication Date: May 4, 2013
Subject: Room Acoustics
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