Owner`s manual

When configured for ‘double-wire’ 88.2/96 kHz operation (see page 12 for more information) and
88.2 or 96 kHz is selected as the sampling frequency, the Rosetta 96 outputs the left channel on
AES output 1 and the right channel on AES output 2. In this case, please be sure that the device
being fed an 88.2 or 96 kHz signal from the Rosetta uses the double-wire method. If the receiving device
uses the ‘single-wire’ (also called ‘double-fast’) method (both channels from one output at twice the
speed), configure the Rosetta for single-wire 88.2/96 kHz operation (see page 12).
S/PDIF
Sony/Philips Digital Interface Format.
S/PDIF is a popular digital interface format found on virtually all DAT
recorders and many pro and semi-pro pieces of equipment. Simply connect the S/PDIF output of the Rosetta
to the S/PDIF input of the receiving device. Audio data and sync will be carried in the same cable. Set the receiv-
ing device to ‘digital in’. If the receiving device does not automatically switch its sync source to digital in, man-
ually select the S/PDIF input as its sync source.
For best sonic results, use a 75Ω coaxial cable created especially for digital audio such as Apogee’s WydeEye
AD 75Ω (part # WE-RR).
SPDIF/ADAT [Optical Output]
Outputs either ADAT Optical format or S/PDIF Optical (“TOSLink”) format according to the selection on the
front panel. See front panel description.
When configured for ‘double-wire’ 88.2/96 kHz operation (see page 12 for more information) and
88.2 or 96 kHz is selected as the sampling frequency, the S/PDIF output of the Rosetta 96 out-
puts every other sample. This signal can be recorded to a normal DAT recorder, for example, or
can be used as a quick reference output. However, it is not recommended that this signal be used
as your main output signal (see page 12 for important precautions).
When configured for ‘single-wire’ 88.2/96 kHz operation and 88.2 or 96 kHz is selected as the sampling
frequency, the S/PDIF output of the Rosetta 96 outputs a full 88.2 or 96 kHz signal. Be sure that the receiv-
ing device can accept a full high-density S/PDIF signal.
WC OUT
Word Clock output. Word Clock is used to synchronize a number of digital devices together. To use the Word
Clock output, connect a high-quality 75 ohm cable from the WC OUT of the Rosetta to the Word Clock input
of the receiving device. Set the receiving device to sync from its Word Clock input. The Word Clock output of
the Rosetta is a really clean clock that can be used to synchronize your entire studio (at least all the devices with
a WC input). A word clock signal can be ‘chained’ through successive devices using BNC ‘T’ splitters on the WC
input of each device, with a 75 ohm terminator applied to the last device in the chain.
DIP SWITCHES 1-8:
1. DOWN (OFF) selects +4 dBu operation. UP (ON) selects –10dBv operation for the analog inputs (roughly
equivalent to 11.5 dB difference in level).
2. DOWN (OFF) selects PIN 2 HOT operation for analog inputs. UP (ON) selects PIN 3 HOT operation.
DIP switches number 3 and 4 work together to determine the number of consecutive full scale samples (0dBFS)
required to illuminate the ‘over’ LEDs on the meters (the default setting is both DIPs to DOWN).
SW 3 SW 4 Threshold
UP UP 1
UP DOWN 2
DOWN UP 3
DOWN DOWN 4
Rosetta AD User’s Guide
Page 16