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Sound atmospheric attenuation is a relevant aspect of realistic space modeling in 3-D audio simulation systems. A digital filter has been developed on commercial DSP processors to match air absorption curves. This paper focuses on the algorithm implementation of a digital filter with continuous roll-off control, to simulate high frequency damping of audio signals in various atmospheric conditions, along with rules to allow a precise approximation of the behavior described by analytical formulas.
Author (s): Petruzzellis, Carlo; Zanghieri, Umberto
Affiliation:
ZP Engineering S.r.L., Rome, Italy
(See document for exact affiliation information.)
AES Convention: 134
Paper Number:8888
Publication Date:
2013-05-06
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Session subject:
Room Acoustics
Permalink: https://aes2.org/publications/elibrary-page/?id=16701
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Petruzzellis, Carlo; Zanghieri, Umberto; 2013; Digital Filter for Modeling Air Absorption in Real Time [PDF]; ZP Engineering S.r.L., Rome, Italy; Paper 8888; Available from: https://aes2.org/publications/elibrary-page/?id=16701
Petruzzellis, Carlo; Zanghieri, Umberto; Digital Filter for Modeling Air Absorption in Real Time [PDF]; ZP Engineering S.r.L., Rome, Italy; Paper 8888; 2013 Available: https://aes2.org/publications/elibrary-page/?id=16701