Clock Modes - Synchronization - RME Audio Hammerfall HDSPe RayDAT User Manual

DDS
Activates all settings of this dialog.
Value
Shows the sample rate as adjusted
in this dialog. The sample rate is
defined by the basic setting (fre-
quency), the multiplier, and the posi-
tion of the activated fader.
Frequency
Sets a fixed basic sample rate,
which can be modified by multiplier
and fader.
Freq. Multiplier
Changes the basic sample rate into
Single, Double or Quad Speed
mode.
Coarse
Fader for coarse modification of the
basic sample rate. Click Active to
activate it. Minimum step size 1 Hz.
Fine
Fader for fine modification of the
basic sample rate. Click Active to
activate it. Minimum step size 1 Hz.
Notes on the faders
A mouse click within the fader area, above or below the fader know, will move the fader with the
smallest step size up or down. Holding the Ctrl key while clicking will cause the fader to jump to
its center (0) position.
11.3 Clock Modes - Synchronisation
In the digital world, all devices are either the 'Master' (clock source) or a 'Slave'. If several digi-
tal devices are to be used simultaneously in a system, they not only have to operate with the
same sample frequency but also be synchronous with each other. This is why digital systems
always need a single device defined as 'master', which sends the same clock signal to all the
other ('slave') devices.
Remember that a digital system can only have one master! If the HDSPe clock mode is set
to 'Master', all other devices must be set to 'Slave'.
The HDSPe RayDAT's intelligent clock control is very user-friendly, being able to switch be-
tween clock modes automatically. Selecting AutoSync will activate this mode.
AutoSync guarantees that normal record and record-while-play will always work correctly. In
certain cases however, e.g. when the inputs and outputs of a DAT machine are connected di-
rectly to the Hammerfall DSP, AutoSync may cause feedback in the digital carrier, so synchro-
nization breaks down. To remedy this, switch the HDSP's clock mode over to 'Master'.
User's Guide HDSPe RayDAT © RME
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