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parametric equalizer

British  

noun

  1. an electronic device for cutting or boosting selected frequencies by continuous narrowing or widening of the frequencies to be filtered Compare graphic equalizer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

parametric equalizer Scientific  
/ păr′ə-mĕtrĭk /
  1. See under equalizer