M-Audio manual Scenario 3: ProFire 2626 Slaved to S/PDIF Input, Master CD Player, User Guide

ProFire 2626 User Guide 35

Scenario 3: ProFire 2626 Slaved to S/PDIF Input

You may need to use a two-track device as clock master. This is because many two-track digital devices, such as consumer CD players, are not designed to be locked to other devices due to their lack of digital inputs. Configure ProFire 2626 to synchronize externally when receiving digital signal from such devices.

In Figure 3 below, the CD player is configured as the clock master, with ProFire 2626 and other devices configured as slaves.

Slave (ADAT A)

In A	Out A	Slave
In B	Out B

12V DC

3.5A

— +

MIDI In A Out A 7 5 3 1

S/PDIF

Word Clock

8

	In BOut B 8	6	4	2
MIDI	Optical		Line Outputs

S/PDIF

Word Clock

S/PDIF

(RCA)

7	6	5	4	3	2	1
			Mic/Line Inputs

Master (CD Player) Slave (ADAT B)

The previous three examples have covered some of the most common clocking methods and are intended to help you understand the basic principles of digital clocking. Note that there are many other ways in which proper clocking can be established between digital audio devices and this chapter cannot cover every conceivable scenario. If your studio uses more advanced clocking devices such as a “house” master clock, please refer to that device’s user guide to learn more about how it can be configured to work with ProFire 2626.