Справочник Пользователя для Tascam RC-898

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

and

DOWN

keys to select between

the three states:

off

ready

and

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:

through

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

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

o f f

Standard

Reference
level

Nominal
level

Maximu
m level

TASCAM

–16dBFS

+4dBu

+20dBu

European

–18dBFS

+4dBu

+22dBu

SMPTE

–20dBFS

+4dBu

+24dBu

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 6

d B

L e v e l

M e t e r

M o d e

M a c h i n e

P e a k

H o l d

R e l e a s e

s e c

F a s t