Extron electronic Extron Electronics Music Mixer DMP 64 Manuale Utente

In the example below (see figure 45), input 1 is sent to the virtual bus send by muting all 
four signals on the input 1 primary mix-points. The virtual bus now serves as additional 
signal processing for the input. The signal routes over virtual bus A and through the signal 
chain before being sent to the virtual bus return mix-point and output 1.
This configuration is useful when more than one input requires identical processing. 
For example if all inputs were normalized but required a uniform gain to bring them up 
to adequate output levels, rather than changing each pre-mix gain control by a similar 
amount, all six inputs can be routed to virtual bus A. Then, using the virtual bus A return 
gain control, a single adjustment can apply the same gain to all six inputs before sending 
the signal to the desired output line.
In other cases, if multiple microphone inputs are being mixed with program material, only 
the program material might require loudness contouring. The microphones can be routed 
directly to the output while the program material input is routed to the virtual bus return 
where loudness contouring can be applied. The program material is then routed to the 
same output as the microphones. 

Mic/Line Input 1

Mic/Line Input 2

Mic/Line Input 3

Mic/Line Input 4

Mic/Line Input 5

Mic/Line Input 6

A

B

C

D

1

2

3

4

5

6

A

B

C

D

1

2

3

4