2-8
Basic Operation
Lexicon
0.1 Analog In Lvl
This is a master level control for analog left and right inputs. Use
ADJUST to select values from 0-100%. If using only analog inputs,
this should be 100% for best audio performance. Values between
0% and 100% are for mixing analog and digital sources.
Note:
If the analog signal being fed into the PCM 81 is too
hot, turn it down by adjusting the front panel INPUT
level control, or by changing the rear panel Input
Gain switch. (See Setting Audio Levels in Chapter 1.)
0.2 Dig In Lvl
This is a master level control for the selected digital left and right
input connector. Use ADJUST to select values from 0-100%. If using
only digital inputs, this should be 100%, with Analog InLvl set to
0% for best audio performance. Values between 0% and 100% are
for mixing analog and digital sources.
Note:
Only one digital input connector can be active: XLR
(AES/EBU) or Coax (S/PDIF).
If digital audio is interrupted by lock or range errors, or by
transmission of non-audio data, the digital input will be muted.
Whenever this occurs, the PCM 81 remains functional, while an
error message, such as those shown at the top of the next column,
is displayed.
Any such message will remain on the display until you dismiss it by
pressing any front panel button. If the condition causing the error
is corrected, and the digital input is unmuted, the message will still
remain until you dismiss it to ensure that you are informed of a
condition that has muted digital audio, even if only for a brief
period of time. Once the message is dismissed, the display will
return to its previous state.
Error : Lock
(Press any button)
Error : Out of Range
(Press any button)
Error : Non Audio
(Press any button)
Audio Dig In Lvl
0.2 30% (Muted)
Some errors detected in an incoming
digital audio signal will cause the PCM 81
to mute the digital input. When this
happens, the Dig In Lvl display will show
both the level you selected, and the fact
that the signal is muted.
If you select the Dig In Lvl parameter while there is a lock, range,
or non-audio error, the display will continue to show the level you
have selected, and parenthetically show that the signal has been
muted.
Note, if Word Clock is set to Int, Dig In Lvl is disabled. You must
select Ext to process digital audio.
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