Physical Audio Inputs And Outputs; Logical Audio Inputs - Studer OnAir 3000 Operating Instructions Manual

5.8.1.1

Physical Audio inputs and Outputs

5.8.1.2

Logical Audio inputs

Input-related Channel Parameters Every logical audio input holds its own set of channel parameters, even if it
Document generated: 10.10.14
The OnAir 3000 can be individually equipped with different audio I/O cards
such as microphone input cards, analog line I/O cards, AES/EBU I/O cards,
multi-channel I/O cards, etc.
All physical audio inputs are internally handled as mono signals, regardless
of their audio interface format (mono, stereo, multi-channel) and can be put
together with the logical Inputs.
Logical audio inputs are the link between the physical audio inputs and the
input router. Only logical inputs/outputs and patch inputs/outputs can be
routed and will be visible on the operating surface.
Because the logical audio input holds the channel parameters, a logical input
can be assigned only to one channel at a time. However, it is possible to have
more than one logical audio input with the same physical audio input line.
The example below shows one logical stereo input (CD 1), and two logical
mono inputs (EXT 1, EXT 2) that consist of the left and right signals of one
physical AES/EBU input (AES 1).
Physical Inputs
AES 1
AES/EBU PCB
is currently not routed to a channel. If a previously un-routed logical audio
input is re-routed to a channel, its last parameter settings (such as gain, EQ,
dynamics, etc.) are automatically activated. The fader setting and the status
of the ON and PFL keys remain at the current channel status.
MIC 1/2 MIC 3
IN IN IN
De-S De-S De-S
EQ EQ EQ
DYN DYN DYN
AUX AUX AUX
2
1
SW V6.0
OnAir 3000 Digital Mixing Console
Logical Inputs
1 L CD 1
CD 1
1 R
EXT 1
EXT 1
2 L
EXT 2
EXT 2
2 R
CD 1 CD 2
Sources
Physical
Inputs
IN IN
De-S De-S
Logical
EQ EQ
Inputs
DYN DYN
AUX AUX
# Input
Router
Physical
Console
Channels
3
Input Router
#
Operation 5-105