Yamaha O2R Manual Do Utilizador

Digital I/O, Setup, and Utilities

The 02R processes audio data at 44.1 kHz or 48 kHz using its internal clock, 
and can run at any frequency from 32 kHz –6% to 48 kHz +6% when an 
external wordclock is applied.

When you connect a number of digital audio devices together, all the 
devices should synchronize to one device—the wordclock master. The 
wordclock master generates a sync pulse which allows the other devices 
connected to it to determine where the start of each digital word is. 
Although most digital interconnect protocols are self-clocking, it is more 
reliable to use a dedicated line for your wordclock signal. This is especially 
important in a multitrack environment where up to eight channels of 
digital data may be multiplexed on one cable.

When you are using a digital device—such as a DAT mastering recorder or 
a modular digital multitrack recorder—connected to the 02R, all the digital 
devices in the system, including the 02R, should synchronize the 
wordclock being supplied by one master device. If any device does not 
synchronize to the system wordclock, dropout and/or other noise may 
occur.

In Section 14, “Installing Options” on page 217 of the User’s Guide, there are 
examples of connecting external digital devices to the 02R and setting the 
appropriate wordclock selection. Refer to this section for details for each of 
the optional digital I/O cards.

Shown below is the DIGITAL I/O 1/5 page—Word Clock Select.