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"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 ..."


The process by which the essential characteristics of a signal wave (the modulating wave) are impressed upon another wave (the carrier wave).