The Influence of Overlapping Band Filters on Octave Band Decay Curves | Zendy

Gerd Høy Marbjerg | Zendy; Jonas Brunskog | Zendy; Cheol-Ho Jeong | Zendy; Valentina Zapata-Rodriguez | Zendy

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The Influence of Overlapping Band Filters on Octave Band Decay Curves

Author(s) -

Gerd Høy Marbjerg,

Jonas Brunskog,

Cheol-Ho Jeong,

Valentina Zapata-Rodriguez

Publication year - 2018

Publication title -

acta acustica united with acustica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.283

H-Index - 57

eISSN - 1610-1928

pISSN - 1861-9959

DOI - 10.3813/aaa.919259

Subject(s) - octave band , octave (electronics) , acoustics , physics

This study showed that the overlap of practically-used bandpass filters can influence the octave band decay curves, especially if the decays are calculated from a filtered impulse response that has been created from octave band energy responses. Energy from a frequency band with a long reverberation time can leak into a neighbouring band with a shorter reverberation time. This also means that neither octave band decays from a measured response are independent, nor are measured octave band reverberation times. (C) 2018 The Author(s). Published by S. Hirzel Verlag.EAA.

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