Sony MINIDISC - Manual (Page 15)

Input Components Specifications
A A D D C C D D
A U S T R I A
13
• Tape widths: 1/4", 1/2"
• Formats: NAB, CCIR, AES
• Noise reduction: Dolby A, Dolby SR
• Reference signals: as standardized e.g: for
15ips CCIR tape:
If it is not possible to send us a tape with these
test tones, please record the tones you have used
for machine adjustment at the last sound-check
of this tape.
If that is impossible as well, we will adjust to
standard reference tones.
• Dolby: If you have used Dolby for noise reduc-
tion, your tape has to contain the appropriate
Dolby-test-signal.
CD-WO (CD-Write-Once)
CD-WOs have to be recorded without interruption
and in accordance with the “Red Book”. It must
be possible to play them on standard CD-players.
The CD-WOs must not contain uncorrectable
errors (C2 errors). These can be caused e.g. by
damage of the CD-WO (scratches, finger prints
etc.), by defects during recording (medium or
recording device) or by an interrupted recording.
Disc checker print-outs (e.g. Sony CDA-5000 or
Audio Development “CD-CATS”) should be sent
together with the CD-WO, if available. All data on
the CD-WO (audio and PQ data, ISRC code, etc.)
are transferred 1:1 onto the manufactured MDs
Quality of the Sound Carrier
During preparation of the sound carrier, the audio
information has to be carefully sound-checked.
Please note every unusual noise (kind of noise and
time at which it appears) in the ”Sound & Noise
Information” (form 2) during this sound-check.
By providing this information like shown on the
sample form sheets on the following pages a lot of
unnecessary delays in production can be avoided.
If a noise which is not mentioned on this infor-
mation will be found during quality inspection at
DADC, the production might be delayed.
PQ Encoding
Start recording approx. 15 sec. after Time code
start. Please pay special attention to the offset-
time of the begin-points. We recommend to use
an offset-time of at least 5 frames to avoid that
the music start is cut off during playback.
Definitions
• “Begin” marks the start point of a track. It
defines the address at which the MD player
starts to playback a track.
International Standard Recording Code
(ISRC code) and UPC/EAN code (BAR code)
A disc catalogue number by means of a UPC/EAN
code and the ISRC numbers as assigned by the
IFPI can be recorded on every MD. For this
UPC/EAN code and the ISRC numbers must be
included in the original PQ Code as supplied by
you or it must be specified in the “Premastering
Instructions".
Additional Specifications for
R-DAT Tapes
• Sampling frequency: We recommend to use a
sampling frequency of 44.1 kHz. Nevertheless,
it is also possible to transfer from tapes with
a sampling frequency of 48 kHz.
Do not alter the sampling frequency within one
tape.
• Time code: SMPTE non-drop-frame; Time code
has to be locked to the NTSC video-frames and
must be recorded continuously and without
interruption. It may not go beyond 23h 59m
59sec 29fr.
• PQ code: The PQ code has to started on digital
channel 1 (left channel of the DAT tape). Start
recording approx. 15 sec after time code start.
Please do not send us your original master tapes.
Send us continuously recorded (no assemble
edits) sound checked copies.
Analog Tapes
Please mind the following specifications:
• Acceptable tape speeds:
7.9, 15, 30ips (19, 38, 76cm/s)
5sec
5sec
30sec
10sec
10sec 1kHz
1kHz
1kHz
14kHz
63Hz 0dB
0dB
0dB
-10dB
-10dB left channel
right channel
both channels
both channels
both channels