FFT-based dynamic range compression

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Many of the dynamic range compressor (DRC) designs that are deployed in the marketplace today are constrained to operate in the time-domain; therefore, they offer only temporally dependent control of the amplitude envelope of a signal. Designs that offer an element of frequency dependency, are often restricted to perform specific tasks intended by the developer. Therefore, in order to realise a more flexible DRC implementation, this paper proposes a
generalised time-frequency domain design that accommodates both temporally-dependent and frequency-dependent dynamic range control; for which an FFT-based implementation is also presented. Examples given in this paper reveal how the design can be tailored to perform a variety of tasks, using simple parameter manipulation; such as frequency-depended ducking for automatic-mixing purposes and high-resolution multi-band compression.
Original languageEnglish
Title of host publicationProceedings of the 14th Sound and Music Computing Conference
EditorsTapio Lokki, Jukka Pätynen, Vesa Välimäki
Place of PublicationEspoo, Finland
PublisherAalto University
ISBN (Electronic)978-952-60-3729-5
Publication statusPublished - 5 Jul 2017
MoE publication typeA4 Conference publication
EventSound and Music Computing Conference - Otaniemi, Espoo, Finland
Duration: 5 Jul 20178 Jul 2017
Conference number: 14

Publication series

NameProceedings of the Sound and Music Computing Conferences
ISSN (Electronic)2518-3672


ConferenceSound and Music Computing Conference
Abbreviated titleSMC
Internet address


  • Audio systems
  • acoustic signal processing


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