M-AUDIO Delta TDIF - Manual (Page 24)

At this point, you may begin to realize the versatility of the Monitor
Mixer and the Patchbay/Router, and the relationship between the two.
You may want to re-read this section and make some practice
adjustments within the Delta Control Panel software to become proficient
in routing and mixing. If somewhere in the process you become
confused, you may always restore the default settings to use the card as
a straight 10-in 10-out device -- just choose the topmost option in each of
the Patchbay/Router columns.
Hardware Settings Page
The Hardware Settings page of the Delta Control Panel gives you control
over miscellaneous features of the Delta TDIF PCI Audio Card. To
display this page, click the "Hardware Settings" tab of the Delta Control
Panel.
MASTER CLOCK: This section allows you to select the source of the
board’s master clock: Internal Xtal (crystal), S/PDIF In, or TDIF In.
Master clock operation is outlined in the Synchronization section of this
manual. Internal Xtal is the default setting. Be sure to select "S/PDIF In"
if you will be recording or monitoring an S/PDIF stream, or "TDIF" if you
wish to synchronize your digital audio with a source device that outputs
TDIF wordclock.
NOTE: If "S/PDIF In" is selected as the master clock source, be
sure to supply a valid S/PDIF signal to the board’s active S/PDIF
input. Otherwise, erratic timing and/or improper sample rates will
be experienced. The same is true for selecting "TDIF In" as the
master clock setting – make sure there is a valid TDIF signal
present at the Delta card’s TDIF connector.
Once a master clock source has been selected, its synchronization status
is continually monitored and displayed below the master clock radio
buttons. If internal crystal is selected, the status display will always say
"Locked." On the other hand, if S/PDIF In or TDIF In is selected as the
master clock source, the control panel will display "Locked" only when a
valid S/PDIF or TDIF signal is detected. It will display "Unlocked" when
there is no signal at the selected input, or when the signal is corrupt or
invalid for any reason.
Also, when selecting and using S/PDIF In as your master clock setting,
make sure that “S/PDIF” is selected as the input in the “Input Audio
Source” section of the Hardware Settings page. Otherwise, no signal will
be detected at the S/PDIF hardware input.
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