An elaborate form of tone control that provides numerous regions of amplitude variation within the audio-frequency range.
"Just to say that you've done an incredible Job!!!. I really want to thank Dr. Cristian Coban for his GREAT WORK. The restoration of the bird's song that was mixed so deeply with terrible background noise which included loud humming, cracks and other matter, was truly amazing!. This song was recorded from a 1950's radio so you can imagine how ..."
