User`s guide

16
User’s Guide ADI-8 QS © RME
44.1, 48
Activates the internal clock at 44.1 kHz or 48 kHz.
DS, QS
With the DS LED additionally lit, the sample rate will be 88.2 or 96 kHz, with QS lit it will be
176.4 or 192 kHz.
A selection of DS and QS is also possible when using
external clock (Slave). If the ADI-8 QS should operate
at 192 kHz, but receives a synchronous word clock of
48 kHz, the button STATE allows to activate DS or QS
mode. This way, AD-conversion and digital outputs are
configured to operate in the frequency ranges Single
Speed, Double Speed or Quad Speed.
Single Speed
All outputs carry a signal in the range of 32 kHz up to 48 kHz.
DS (Double Speed)
The AES outputs 1-8 carry a signal in the range of 64 kHz up to 96 kHz. ADAT and MADI stay
at no higher than 48 kHz, with the data transmitted in the S/MUX format.
QS (Quad Speed)
The AES outputs 1-8 carry a signal in the range of 176.4 kHz up to 192 kHz. ADAT and MADI
stay at no higher than 48 kHz, with the data transmitted in the S/MUX4 format. Therefore ADAT
is limited to 4 channels (2 per optical output) in this mode.
8.7 Digital Input
The key DIGITAL INPUT defines the signal source of the DA-
converters. This is also true for the mode Digital to Digital, where the
chosen digital input signal is sent directly th the digital outputs.
Each input has its own SYNC LED. If a valid input signal is applied,
SyncCheck is active automatically. SyncCheck takes the chosen clock
(internal, external, etc.) as reference and compares it with the input
clocks. Inputs which are not synchronous will be signalled by flashing of
the corresponding SYNC LED.
8.8 Output State
The 8 level meter of the OUTPUT STATE show the digital input level per channel as digital
value (dBFS). The display incorporates the settings of Global Output Level and Output Trim.
Therefore overloads of the DA-converters will allways be displayed.
When the Setup menu is active, all available options are displayed in this level meter window.
8.9 Set (Rotary Encoder)
The rotary encoder is a highly intuitive multifunctional device. It is used to set
the trim values, the volume, and various options in the Setup menu.
Pushing the knob SET activates the Setup menu. Within the Setup menu a
push on SET changes between left and right window.