Yamaha 01V96 Owner's Manual - Page 40
Wordclock Connections and Settings, About Wordclock, Wordclock Connections
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40 Chapter 4-Connections and Setup Wordclock Connections and Settings About Wordclock Digital audio equipment must be synchronized when digital audio signals are transferred from one device to another. Even if both devices use identical sampling rates, digital signals may not transfer correctly, or audible noise or unwanted clicks may occur if the digital audio processing circuits inside each digital audio device are not synchronized with each other. Wordclocks are signals that enable digital audio processing circuits to synchronize with each other. In a typical digital audio system, one device operates as the wordclock master, transmitting wordclock signals, and the other devices operate as wordclock slaves, synchronizing to the wordclock master. If you are digitally connecting the 01V96 to other equipment, you must decide which device to use as the wordclock master and which devices to use as slaves, then set up all the devices accordingly. The 01V96 can be used as the wordclock master running at either 44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz, or slaved to an external wordclock source. Wordclock Connections To establish wordclock synchronization between the 01V96 and external devices, you can distribute wordclock signals independently via dedicated cables, or you can use clock information derived from digital audio connections. The WORD CLOCK IN and OUT connectors transmit and receive wordclock signals independently on the 01V96. The following examples show two ways in which wordclock signals can be distributed and received via the WORD CLOCK IN and OUT connectors. • Daisy Chain Distribution In this example, the wordclock signal is distributed in a "daisy-chain" fashion, with each device feeding the wordclock signal from the wordclock out connector on to the wordclock in connector of the next device. This method of distribution is not recommended for larger systems. Wordclock master WC OUT (BNC) WC IN (BNC) WC OUT (BNC) Device A Wordclock slave WC IN (BNC) WC OUT (BNC) Device B Wordclock slave WC IN (BNC) Device C Wordclock slave • Star Distribution In this example, a dedicated wordclock distribution box (such as a Yamaha IFU4) is used to supply wordclock signals from the wordclock master to each wordclock slave individually. Wordclock WC OUT master (BNC) Wordclock distribution box WC IN (BNC) WC IN (BNC) WC IN (BNC) WC IN (BNC) Device A Device B Device C Device D Wordclock slave Wordclock slave Wordclock slave Wordclock slave 01V96-Owner's Manual