Transfer functions can generally be decomposed into a minimum phase component, an all-: pass component and a pure delay. Earlier investigations have shown that head related transfer: functions and headphone transfer functions have all-pass components, but if these do not have: an audible impact on the sound it might be beneficial to implement binaural synthesis without: them. A subjective experiment is described in which listeners are presented with signals that: differ only in terms of a second order all-pass section. The results of the experiment are: threshold curves dependent on the center frequency and Q-factor of the all-pass section.

Authors: Minnaar, Pauli; Christensen, Flemming; Moller, Henrik; Olesen, S. Krarup; Plogsties, Jan
Affiliation: Aalborg University, Aalborg, Denmark
AES Convention: 106 (May 1999) Paper Number: 4911
Publication Date: May 1, 1999
Subject: Spatial Sound

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