Level Adjustment For Ad96M; Ref Level Setting; Word Length Selection.23 - Panasonic RAMSA WZ-AD96 Operating Instructions Manual

Chapter 3
Level Adjustment for
AD 96M
Factory setting is +4 dBu = -20 dBFS* when the trimmer is turned to the
end CCW position.
1. Connect a microphone to the input connector of the channel you will
adjust. Then speak to the mic.
2. Adjust the trimmer so that the LIED lights in amber (REF) when input is
average, and occasionally lights in red (PEAK).
3. Repeat above steps for the rest channels if necessary.
REF
Level Setting
Select the Reference Level by setting DIP switch # 8 and 7 on the rear panel
to meet the connected device's: from -20, -18 , -16 or -l4dBFS.
For example, when TASCAM DA88 is connected use -16 dBFS. [-16] of REF
LEVEL indicator lights on the front panel. This setting changes REF LEVEL for
all 8 channels at once.
Level matching in digital audio is quite deferent from analog
world's. Among analog devices it is simply accomplished just by
referring to +4dBu, even though individual head rooms are not
the same.
In digital world the gap of head room adversely affects on level matching,
resulting in clips and so forth. To easily eliminate the gap an idea of [REF
LEVEL] is introduced that indicates a minus digital scale from 0 dBFS (Digital
Full Scale). As listed below, individual equipment has its own [REF LEVEL]
equivalent to +4 dBu. Select an appropriate REF level by the DIP switch.
-14 dBFS: RAMSA WR-DA7, Y\MAHA 03D, Lexicon PCM90/91
-16 dBFS: TASCAM DA88, AKAI DR8/DR16, Alesis ADATXT (-13 dBFS)
-18 dBFS: Panasonic DAT SV-3900/4100/3700, Digidesign Pro Tools 888 I/O
-20 dBFS: RAMSA WR-DA7X VAMAHA 02R, Others
WORD LENGTH
Selection
Select a Word Length that meets to the connected device's by pressing the
WORD LENGTH button on the front panel. If 16 or 20 bit is selected dither is
added to moderate distortions caused by discarded bits.
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