The characterization of acoustic spaces by impulse response measurements is often biased by the nonlinear behavior of the loudspeakers that excite the test system. While the use of swept techniques can significantly reduce the consequences of nonlinearity artifacts, such signals cannot avoid distortion degradation in the causal part of the measured impulse response. This conclusion is based on a new interpretation of the nonlinear effects using theoretical analysis, computer simulations, and direct measurements.

Authors: Torras-Rosell, Antoni; Jacobsen, Finn
Affiliations: Danish Fundamental Metrology, Matematiktorvet 307, Kgs. Lyngby, Denmark; Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark(See document for exact affiliation information.)
JAES Volume 59 Issue 5 pp. 283-289; May 2011
Publication Date: June 22, 2011

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