Technical data

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88
Manual SDs-01 E 6.2.2003 18:18 Uhr Seite 13
This setting allows to receive an 8-channel (as maximum) AES3 source signal
with sampling rates between 25.0kHz and 200.0kHz. The signal‘s audio
format will be converted into ADAT
TM
, ADAT
TM
/ SMUX2, ADAT
TM
/ SMUX4,
S/PDIF and AES3 simultaneously, whereas the ADAT
TM
output format
depends on the clock rate of the incoming AES3 source signal (see grey
box on the right hand side). It is not necessary that all four stereo input
channels are carrying a valid AES3 signal. Also a single stereo signal can be
converted. It will be transfered to the outputs of the other audio formats
correspondingly to its input channel number (1– 4).
Under »REFERENCE« the »AES3 + IN1« option is selected initially. By inpu-
ting an 8-channel AES3 signal, there is no need to select a different refe
-
rence option (IN2 – IN4). When your input signal contains valid AES3 streams
only on e.g. channels 5/6 and 7/8, you need to select either »IN3« for input
channels 5/6, or »IN4« for input channels 7/8 as reference signal source. The
MC-4 needs to derive a valid clock signal from one of the incoming AES3
channel pairs. So, it is imperative to select one of the reference options
»IN1 – IN4« as converting reference correspondingly to the input channel
pair which carries a valid AES3 digital audio signal.
Unidirectional Format Conversion from:
S/PDIF to ADAT
TM
or ADAT
TM
/ SMUX2 + 4, AES3
If a 2-channel stereo AES3 or
S/PDIF signal is input for format
conversion only, without SRC, it is
imperative to select under »REFERENCE«
the corresponding input number »IN1– IN4«
as converting reference!
The sampling rate of the incoming AES3 or
S/PDIF
signal will be displayed in the
»REF CLOCK IN« menu.
!
Unidirectional Format Conversion from:
AES3 to ADAT
TM
or ADAT
TM
/ SMUX2 + 4, S/PDIF and AES3
17
The MC-4’s AES/EBU inputs generally accept
AES3, AES11 and S/PDIF signal formats for
conversion to the available output signal
formats.
When the sampling rate of the inco-
ming AES3 or S/PDIF signal is lower
as 50.0kHz, both ADAT
TM
outputs
transmit the same signal and function as
ADAT
TM
signal splitter.
Is the sampling rate of the incoming AES3 or
S/PDIF signal between 50.0kHz to 100.0kHz,
the ADAT
TM
output format will be automati-
cally switched over to ADAT
TM
/ SMUX2.
When the sampling rate of the incoming
AES3 or S/PDIF signal is between 100.0kHz
to 200.0kHz, the ADAT
TM
output format
will be automatically switched over to
ADAT
TM
/ SMUX4.
The corresponding SMUX format of the
ADAT
TM
outputs will be displayed in the
»STATUS« menu.
!
X-SRC
12
BI-DIR
UNI-DIR ADAT
1
SMUX4
1
SRC
REFERENCE
IN 3
IN 2
IN 1
IN 4
SMUX4
SMUX2
ADAT
AES3
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
SMUX2
1
AES3
2
AUDIO IN
S/PDIF
S/PDIF
AES11
WCLK
Due to the fact, that the function
modes described on this page are
format conversion modes only, it
is imperative that the AES3 or S/PDIF input
channels are of same sampling rates!
!
This setting allows to receive an 8-channel (as maximum) S/PDIF source sig-
nal with sampling rates between 25.0kHz and 200.0kHz. The signal‘s audio
format will be converted into ADAT
TM
, ADAT
TM
/ SMUX2, ADAT
TM
/ SMUX4
and AES3 simultaneously, whereas the ADAT
TM
output format depends
on the clock rate of the incoming S/PDIF source signal (see grey box on
the right hand side above). It is not necessary that all four stereo input
channels are carrying a valid S/PDIF signal. Also a single stereo signal can be
converted. It will be transfered to the outputs of the other audio formats
correspondingly to its input channel number (1– 4).
Under »REFERENCE« the »S/PDIF + IN1« option is selected initially. By
inputing an 8-channel S/PDIF signal, there is no need to select a different
reference option (»IN2 – IN4«). When your input signal contains valid S/PDIF
streams only on e.g. channels 5/6 and 7/8, you need to select either »IN3«
for input channels 5/6, or »IN4« for input channels 7/8 as reference signal
source. The MC-4 needs to derive a valid clock signal from one of the inco-
ming S/PDIF channel pairs. So, it is imperative to select one of the reference
options »IN1 – IN4« as converting reference correspondingly to the input
channel pair which carries a valid S/PDIF digital audio signal.
X-SRC
12
BI-DIR
UNI-DIR ADAT
1
SMUX4
1
SRC
REFERENCE
IN 3
IN 2
IN 1
IN 4
SMUX4
SMUX2
ADAT
AES3
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
SMUX2
1
AES3
2
AUDIO IN
S/PDIF
S/PDIF
AES11
WCLK
This is the only mode, in which
the S/PDIF interfaces function as
inputs, due to the limited number
of four interfaces available at the rear for
S/PDIF transfers!
!