Sony DPS-V77 Mode D'emploi page 10

Getting Started
Analog IN/OUT and digital IN/OUT
This unit is provided with both analog and digital inputs and outputs, and you can use both of
them at the same time. The input block in the SYSTEM: Setup menu lets you determine whether
to use the analog, the digital, or both the analog and the digital INPUT/OUTPUT jacks.
Analog INPUT priority
This unit is provided with both PHONE and XLR type analog INPUT and OUTPUT jacks.
Although the signal is always output from both the PHONE and XLR jacks, the PHONE jacks
are given priority for the input signal. When the PHONE and XLR INPUT jacks are used at the
same time, the XLR signal is automatically cut.
Emphasis
Some older CDs have "emphasized" high frequency sounds. When outputting an analog signal
from an "emphasized" digital source, it is necessary to "de-emphasize" the high frequency
sounds and bring them back to their original levels. The [Input] block in the SYSTEM: Setup
menu lets you determine whether de-emphasis will be carried out automatically, or manually.
Adjusting the INPUT/OUTPUT levels (to prevent clipping)
The numbers on the level meter show, in decibels, how much room is left before the INPUT
signal reaches the clip point. If the input signal exceeds the clip point (0 dB), clip noise breaks
out. This unit's effect processor incorporates a 12 dB leeway. Therefore, even if you raise the
signal level to +12 dB, with the EQ block for example, the internal processor will not clip the
signal. It is necessary, however, to reduce levels over 0 dB before they are output. To adjust the
effect level, choose [Mixer] in the EDIT mode. See "Changing the effect parameters" on page 17
to edit an effect.
Even though you can decrease levels in the mixer block, the most important
factor in preserving sound quality is the input level. The following is a general
guide line for adjusting the input level, but your eyes and ears are ultimately the
most useful tools in determining and maintaining the appropriate input level.
INPUT jacks
Digital
(with the digital attenuator set to 0 dB)
Analog (+ 4 dB)
BALANCED or UNBALANCED
(with the front panel INPUT knob set to 0 dB)
Analog (– 20 dB)
UNBALANCED
(with the front panel INPUT knob set to 0 dB)
10
EN
level meter
Signal reading
0 dB digital (full swing) 0 dB
+ 21 dB signal 0 dB
+ 4 dB signal –17 dB
– 2 dB signal 0 dB
– 20 dB signal –18 dB
/ See "Setting the DIGITAL IN/
OUT" on page 13.
/ See "Names and Functions
of Parts" on page 7.
/ See "Setting the DIGITAL IN/
OUT" on page 13.