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DDS<br />
Activates all settings of this dialog.<br />
Value<br />
Shows the sample rate as adjusted in<br />
this dialog. The sample rate is defined<br />
by the basic setting (frequency), the<br />
multiplier, and the position of the activated<br />
fader.<br />
Frequency<br />
Sets a fixed basic sample rate, which<br />
can be modified by multiplier and fader.<br />
Freq. Multiplier<br />
Changes the basic sample rate into<br />
Single, Double oder Quad Speed mode.<br />
Coarse<br />
Fader for coarse modification of the<br />
basic sample rate. Click Active to activate<br />
it. Minimum step size 1 Hz.<br />
Fine<br />
Fader for fine modification of the basic<br />
sample rate. Click Active to activate it.<br />
Minimum step size 1 Hz.<br />
Notes on the faders<br />
A mouse click within the fader area, above or below the fader know, will move the fader with the<br />
smallest step size up or down. Holding the Ctrl key while clicking will cause the fader to jump to<br />
its center (0) position.<br />
11.3 Clock Modes - Synchronisation<br />
AutoSync<br />
The <strong>HDSP</strong> <strong>AES</strong>-<strong>32</strong> has been equipped with AutoSync, an automatic clock source selection,<br />
which adopts the first available input with a valid digital signal as the clock reference input. The<br />
input currently used as sync reference is shown in the 'System Clock' status field, together with<br />
its current sample frequency.<br />
AutoSync guarantees that normal record and record-while-play will always work correctly. In<br />
certain cases however, AutoSync may cause feedback in the digital carrier, so synchronization<br />
breaks down. To remedy this, switch the <strong>HDSP</strong>’s clock mode over to 'Master'.<br />
Via Pref. Sync Ref (preferred synchronization reference) a preferred input can be defined. As<br />
long as the card sees a valid signal there, this input will be designated as the sync source, otherwise<br />
the other inputs will be scanned in turn. If none of the inputs are receiving a valid signal,<br />
the card automatically switches clock mode to ‘Master’.<br />
Thanks to its AutoSync technique and lightning fast PLLs, the <strong>HDSP</strong> is not only capable of handling<br />
standard frequencies, but also any sample rate between 28 and 200 kHz. Even the word<br />
clock input, which most users will use in varispeed operation, allows any frequency between 28<br />
kHz and 200 kHz.<br />
16 <strong>User's</strong> <strong>Guide</strong> <strong>HDSP</strong> <strong>AES</strong>-<strong>32</strong> © <strong>RME</strong>