The attenuation that occurs when two waveforms of equal frequency and opposite polarity are combined. The attenuation may be total when the waveforms are also of equal amplitude.
"Dear CVC Productions: I waited for years for an obscure Japanese musician's work to be released on a CD. No luck. So I sent my three old, long-play records to CVC for conversion. I now am the proud owner a single CD with the cream cuts off those three albums! Very satisfying. Good work guys! Thank you! "