1. (Verb.) To check the technical quality of a transmission. 2. (Noun.) An apparatus for comparing the technical quality of a program at one point in the transmission chain with that of the same program at another point and for giving an alarm if there is any significant difference between the two.
"Oh my gosh! Just got my CD's today and I can't believe the quality of them! It brought tears to my eyes to hear a recording that I haven't heard in over 30 years. You did a fantastic job on tapes that were old and haven't been played in a long time. The sound and even the wording on the CD's is amazing!!! Keep up the great work and I would ..."