Hardware Settings Page
The Hardware Settings page of the Delta Control Panel gives you control over miscellaneous features of the Delta 44. To display this page, click the “Hardware Settings” tab of the Delta Control Panel.
MASTER CLOCK: This section displays the source of the board’s master clock: Internal Xtal (crystal). Master clock operation is outlined in the Synchronization section of this manual. Internal Xtal is the default (and only) setting. The status display will always say “Locked” as the Delta will always be synchronized to its own internal clock.
CODEC SAMPLE RATE: This section indicates the present board sample rate, as set by application software. The sample rate displayed here is used to drive the digital mixer and all converters. The “Rate Locked” checkbox is used to force a sample rate upon the system. It is disabled by default to allow software access to all supported sample rates. When checked, it causes the driver to only operate at the selected sample rate. This means that any application that attempts to open the Delta 44 driver at a sample rate other than the one selected here will fail to do so and will post an error message. “Reset Rate When Idle” is selected when you want the sample rate to return to a particular setting when a software application is not actively using the board. This is particularly handy for keeping the digital mixer running at a specific sample rate.
NOTE: Because the digital monitor mixer runs at the sample rate of the rest of the board, and because sample rate directly affects frequency response, it may sometimes be desirable to keep the sample rate at or above 44.1 kHz while using the monitor mixer. This is accomplished by enabling “Reset Rate When Idle” and selecting a sample rate of 44.1 kHz or greater.
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