Yamaha SW1000XG Owner's Manual download pdf (Page 25)

KENTON PLUGSTATION USERS MANUAL

In a typical digital audio system, one device acts as the wordclock master and the other devices act as

wordclock slaves, synchronizing to the wordclock master. If the SW1000XG is the only digital audio device

in your system, no special wordclock settings are required, as the SW1000XG synchronizes to its own

internal wordclock. The SW1000XG card not having a digital input port will always act as a wordclock master

running from its internal clock source.

If you connect the SW1000XG to the DS2416 or to PLUGSTATION, then PLUGSTATION will slave to the

SW1000XG wordclock. However the DS2416 will have several options as to where its wordclock information

is coming from. Our interest lies in the SI option, for as we said, the SI connector can also carry wordclock

info.

Wordclock runs at the same frequency as the sampling rate. The SW1000XG generates its own wordclock

at 44.1 kHz (the industry-standard sampling rate for music CDs). As any DS2416 will have seen, the

DS2416 can be used as a wordclock slave synchronized to an external wordclock of the SW1000XG (or

indeed to other devices such as DAT recorders) between 30.08 kHz and 50.88 kHz (32 kHz –6%, 48 kHz

+6%).

Converting the sampling rate of digital audio is a complicated process, so it’s best to use the 44.1 kHz

sampling rate (this is the fixed rate for PLUGSTATION and the SW1000XG), especially if your work is

destined for CD distribution. The PLUGSTATION can also run from its own internal wordclock also set to

44.1khz if no SW1000XG is present. If on startup the PLUGSTATION finds the SW1000XG is connected it

will slave to the wordclock data being sent over the D-SUB connector port (the SW1000XG also sends word

clock information over the PLG connector to synchronize any PLG cards connected). Wordclock sent over

the SO (Serial Output) connector to the KENTON X-board is also sent thru to the DS2416 card to maintain

accurate sync, so that you can simultaneously use the SW1000XG, PLUGSTATION (ADAT or analogue

outputs also!), and the DS2416 with any of its optional output units (such as the AX16AT ADAT card). This

has the added benefit of providing 8 discrete digital streams from the SW1000XG, which can now run

separately to any discrete digital or analogue streams coming from the DS2416 (previously impossible if you

wanted to run 16 channels out of the AX16AT from one DS2416, you had to combine or sacrifice channels

to allow SW1000XG discrete audio outs)

Before commencing with a recording session, make sure that all wordclock slaves are synchronized to the

master, which in the case off a system comprising of the SW1000XG and DS2416/PLUGSTATION will

always be the SW1000XG.

Some devices have front panel indicators to show when they are wordclock synchronized and this is the

case with the software support for the DS2416/SW1000XG linkup. (For Example Cubase VST). Wordclock

is also sent out from the SPDIF output of the SW1000XG, at the same time as being sent from the ADAT

output of PLUGSTATION. As the wordclock is coming from the same source, it makes it easy to connect

both the ADAT out of for example a connected DS2416 system with the AX16AT, and the ADAT out of

PLUGSTATION up to the same digital mixer with the SW1000XG acting as the wordclock master source.

For example on a Yamaha 02R series digital mixer, you would select the ADAT input coming from the

PLUGSTATION as the wordclock master source.

Once connected together, the SW1000XG will be passing its wordclock information to the PLUGSTATION

and if fitted the DS2416 at 44.1 kHz. For the actual audio to be passed over however to the DS2416 SUB

input channels you need to make sure that the DS2416 wordclock is set to SI or serial input. This is covered

in detail in most application software, which works with the DS2416, and in greater detail in the Yamaha

SW1000XG Advanced Users guidebook, which is free from Yamaha or from www.xgfactory.com

NOTE: THE WORDCLOCK SOURCE FOR PLUGSTATION DISPLAY OPTION IS COVERED IN THE

FRONT PANEL EDITING SECTION OF THIS MANUAL. THIS MENU ALLOWS YOU TO EASILY SEE

WHERE THE MASTER WORDCLOCK SOURCE IS COMING FROM. ONCE LOCKED TO THE

SW1000XG IT IS NOT POSSIBLE TO SWITCH PLUGSTATION TO INTERNAL WORDCLOCK WHILST

THE SW1000XG IS CONNECTED. TO DO SO WOULD RESULT IN LOSS OF SYNC BETWEEN THE 2,

AND PRODUCE UNDESIRABLE AUDIO EFFECTS.

Aside from the PLUGSTATION and the KENTON X-BOARD being in the middle, the way of interfacing and

connecting the DS2416 (or 2) and any other expansion cards for DS2416 (such as the AX44 or AX16AT) is

exactly the same as in your DS2416 manual.

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Yamaha SW1000XG Owner's Manual Page 25

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