In comparison to active absorbers, active diffusers have more complicated target impedance functions, a smaller region of stable control, and are more sensitive to control impedance errors. The issues of stability and sensitivity are analyzed theoretically and empirically. Measurements show comparable performance for active and passive diffusers with the active solution requiring less space.

Authors: Avis, Mark R.; Xiao, Lejun; Cox, Trevor J.
Affiliations: University of Salford, Salford, UK; University of Birmingham, Birmingham, UK(See document for exact affiliation information.)
JAES Volume 53 Issue 11 pp. 1047-1060; November 2005
Publication Date: November 15, 2005

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