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Conference cookie::notes$archive:cd_v1

Title:Welcome to the CD Notes Conference
Notice:Welcome to COOKIE
Moderator:COOKIE::ROLLOW
Created:Mon Feb 17 1986
Last Modified:Fri Mar 03 1989
Last Successful Update:Fri Jun 06 1997
Number of topics:1517
Total number of notes:13349

357.0. "Taping CD'S" by CAPECD::HOLLAND () Tue May 13 1986 11:33

    When copying cd to tape, I've noticed quite a difference in volume
    level IE: I have to turn my tape deck in the car up louder to hear
    the tape. My vu meters are right when I'm recording (bouncing around
    0). Am I doing something wrong,could it be my equipment?, or is
    this something common with cd to cassette recording. Any suggestions?
    
    Ken Holland
    
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357.1It's a peak vs. average issuePIPER::QUIMBYTue May 13 1986 12:3622
    Your "VU" meters are probably designed to give more weight to peak
    levels than to others.  In other words, they are not displaying
    the average or the instantaneous level, they are tending to hold
    onto peaks.
    
    This makes sense for taping, because what you want to do is record
    as high a level as possible without having the peaks too high.
    
    CD's give you a wider dynamic range -- which means that the average
    level of a CD is farther below the peak level than you would find
    in a comparable vinyl record.
    
    Solutions?  1.  Pre-taping compression (which I think is covered
    elsewhere in this conference).  2.  Experiment to see whether you
    can copy a cd to tape with the VU meters at a higher level without
    degrading the signal -- between new tape formulations and the possibly
    conservative factory meter calibration, you may be pleasantly
    surprised.  3.  Keep on turning up the car  tape deck.
    
    By the way, you probably do not have "VU" meters in your deck --
    the real thing is fairly expensive and has very precisely determined
    ballistic characteristics.