Audio
Mastering and How To Get Started
Additional CD Master
technical information:
Digital Audio Tape (DAT)
• Digital Audio Tape: 44.1 kHz or 48 kHz sampling rate
• Pre-roll: 10-15 seconds recorded silence. (Optional)
 Calibration tone:
1 kHz at -12 dB (never at 0 dB).
• Start IDs: sequentially numbered, placed at the start of each
selection,
one number per song.
• If you are ordering CDs, a sampling rate of 44.1 kHz is highly
recommended.
Optional for cassettes.
• Your dB meters should peak at 0, with no over levels, and
must average
above -15 dB (Red Book minimum standard).
• Be sure your DAT and box are labeled.
1610 or 1630 U-matic Tape
• For 1630s: (Optional) Calibration tone: 1 kHz at maximum
peak recorded
level.
• Tape must be striped with continuous SMPTE time code.
Record in non-drop
frame mode at 44.1 kHz sampling rate.
• Tape must include a frame-accurate running time log
and CRC report.
• Minimum of 2 minutes digital black pre-roll and 1 minute of
digital
black post-roll.
1/2" or 1/4" Analog
Tape
• 30 ips, 15 ips, or 7 1/2 ips.
• Alignment (test) tones at head: 1 kHz, 10 kHz, and 100 kHz
at 0 dB operating
level.
• Indicate type of noise reduction, if any, and include
proper tones.
• Leader tape at head and tail of tape (15 seconds minimum)
and
two to four seconds in between songs.
• Tape slow-wound, tails out, in properly labeled box.
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