Tascam RC-898 - Manual (Page 44)

Section 7.2 - Unit-related functions
7-6
7.2.12 Confidence mode
The DA-98 allows off-tape monitoring while
recording (confidence mode). This can be
switched on or off on a per-machie basis.
However, since there is a slight delay between the
input signal and its replay in confidence mode,
you should not use confidence mode in the follow-
ing circumstances:
• When making punch recordings, as you will
not be able to hear the exact timings for punch
operations.
• When operating a mixed chain of DA-98s and
other units. The delay introduced by confi-
dence mode on the DA-98 will make these
tracks appear to be out of time with the other
tracks.
However, confidence mode can be very useful
when making test recordings so that you can
instantly hear the effects of different dither set-
tings (see 7.2.11, “Dither”), or to monitor possible
clipping at high recording levels on a test take,
allowing you to “back off” the level a little before
making a final recording.
1) From menu group 9, move the cursor to
ConfdMod and press SELECT :
2) Use the UP and DOWN keys to select between
the three states: off , ready and on .
Confidence mode is selected using this three-state
switch to prevent accidental switching of the unit
into confidence mode, which might otherwise
cause confusion when performing monitoring
operations.
7.2.13 Reference levels
The reference level for analog I/O on the DA-
98 can be set to one of three standard values:
European, TASCAM and SMPTE. These levels
correspond to:
1) From menu group 2, move the cursor to Ref
Level and press SELECT :
2) Use the UP and DOWN keys to select between
-16 , -18 and -20 dB.
The appropriate reference level indicator(s) next to
the meters on the DA-98 unit will light. See sec-
tion 8-7 of the DA-98 manual for further details of
reference levels.
7.2.14 Meter modes
On the DA-98, the peak hold time and the
decay ballistics of the meters can be changed.
1) From menu group 2, move the cursor to
MeterMode and press SELECT :
2) Move the cursor to the Peak Hold setting,
and choose between the following values: 0
through 9 seconds (in 1-second increments)
and continue .
The continue setting sets an infinite peak
hold time. The peak levels can be reset by setting
the time to
0 seconds.
3) Move the cursor to the Release setting, and
choose between the following release times:
Fast , Medium and Slow .
The meter functions are described in section 8.8 of
the DA-98 manual.
7.2.15 Sine oscillator
The DA-98 incorporates a sine oscillator for
line-up purposes at either 440Hz or 1kHz. The
level of the oscillator is a full bit +16dBu (but can-
not be compared to transient signals, on account
of the constant nature of a sine-wave oscillator).
C o n f i d e n c e M o d e
M a c h i n e 1
o f f
Standard Reference
level Nominal
level Maximu
m level
TASCAM –16dBFS +4dBu +20dBu
European –18dBFS +4dBu +22dBu
SMPTE –20dBFS +4dBu +24dBu
98
98
A n a l o g I n / O u t
R e f e r e n c e L e v e l
M a c h i n e 1
- 1 6 d B
L e v e l M e t e r M o d e
M a c h i n e 1
P e a k H o l d R e l e a s e
0 s e c F a s t
98
98