Operating The Adi-8 Dd - RME Audio ADI-8 DD User Manual

5.3 Operating the ADI-8 DD

Join us for a small 'tour de ADI', starting on the left side at the AES to ADAT/TDIF converter.
Configuration starts with choosing the input signal (AES, ADAT or TDIF). The state of the input
signal is displayed by 16 LEDs. Shown are Lock (per XLR jack, including SyncCheck), Empha-
sis and the level of the audio signal.
SRC activates a Hi-End 8-channel Sample Rate Converter. It is especially useful when sources
cannot be synced, or the output signal shall have another sampling frequency.
RME's intelligent clock control (ICC) offers extensive and professional means that are not eas-
ily met. To start with, the clock source can be set to Internal (crystal), External (BNC word
clock) and Input, while Input lets you select between AES, ADAT or TDIF. The INT(ernal) clock
rates are 44.1 and 48kHz, which turn to 88.2 and 96kHz after activating the DS mode. After
activating SRC, any AES signal from 32 to 96kHz can be converted to 44.1, 48, 88.2 or 96kHz.
Lock state and clock synchronicity are being displayed by the state of each LED (flashing or
constantly lit).
The ADAT/TDIF to AES section is layed out in a similar way. After choosing the input signal
(AES, ADAT or TDIF), the clock source and the sampling rate, there is a field with 16 LEDs for
displaying the current status. An Emphasis bit at the TDIF input will be automatically set and
indicated for the AES out. The Lock state of the input signals is being displayed at the
SOURCE selector by flashing LED. The Sync LEDs show the synchronicity between both
ADAT or TDIF inputs (or the four XLR inputs), as in double speed mode (DS) 2 I/Os are active
(4 channels each).
The AES output signal can be set to Consumer or Professional subcode. The first output
(channel 1/2) can optionally be output optically (via TOSLINK) using the second ADAT output.
The AES STATE key also allows to connect both ADAT outputs to the AES outputs (OPT. blin-
king; useful for TDIF to ADAT conversion).
The unit always sends its output signal to ADAT and TDIF simultaneously. Additionally when
operating at no higher than 48kHz, both ADAT outputs and TDIF interfaces get the same sig-
nal. Thus the distribution capability is doubled to 2 x ADAT and 2 x TDIF. Thanks to the freely
available inputs all attached devices can send signals to each other without the need to rear-
range the cabling between them.
8 User's Guide ADI-8 DD © RME