MUTEC MC-6 - Manual (Page 17)

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Unidirectional Format and Sampling Rate Conversions
17
External Clock
References
Internal
Clock
Reference
X-SRC
BI-DIR
UNI-DIR AES3
S/P-DIF op SRC
REFERENCE
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
AES3id
S/P-DIF co
AUDIO IN
AES11
WCLK AES3
S/P-DIF op
AES3id
S/P-DIF co
Locking so-called
»Super Clocks«
Your MC-6 is able to lock to so-
called »Super Clock« (SCLK) reference
signals. These clock signals are used
preferably for older digidesign ProTools™
MX systems. Specified are only two clock
rates, 11.2896MHz + 12.288MHz which are
the x256 multiple of the Word Clock rates
44.1kHz and 48.0kHz.
When locking to one of these Super Clocks,
the rate will be inverted displayed in the
»REF CLOCK
IN « menu. Due to this, the LED
in front of the corresponding base clock
rate, that means Word Clock rate, does not
light while all other LEDs light (see exam-
ples below).
!
REF CLOCK IN
88.2
48.0
44.1
32.0
192.0
96.0
176.4
1 2
REF CLOCK IN
88.2
48.0
44.1
32.0
192.0
96.0
176.4
1 2
Super Clock of
44.1kHz Word
Clock Super Clock of
48.0kHz Word
Clock
This setting allows for unidirectional format and sampling rate conversion
(see »MODE«, »UNI-DIR« + »SRC«) of an AES3 source signal (see »AUDIO
IN «,
»AES3«) simultaneously to all available output formats. The sampling rate
of all outputs now depends on the clock rate of the reference clock signal,
which is selected in the »REFERENCE« menu. The above example shows
Word Clock (»WCLK«) selected as clock reference, which is the default set-
ting. The following clock references are available for synchronization:
WCLK, 25.0kHz – 200.0kHz, SCLK 11.2896MHz + 12.288MHz
AES11, 25.0kHz – 200.0kHz (through separate input at the rear)
Inputs of AES3, AES3id, S/P-DIF op, S/P-DIF co, each 25.0kHz – 200.0kHz
32.0kHz –192.0kHz, internal clock oscillator
To activate a clock source enter the »REFERENCE« menu and press the »SE-
LECT« button repeatedly. When the external reference clock signal is locked
by the internal PLL circuit, the first blue LED »LOCK« in the »STATUS« menu
lights constantly. The clock rate of the selected clock source is then display-
ed in the first LED row, marked with »1«, of the »REF CLOCK
IN « menu.
Further Setting Examples
X-SRC
BI-DIR
UNI-DIR AES3
S/P-DIF op SRC
REFERENCE
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
AES3id
S/P-DIF co
AUDIO IN
AES11
WCLK AES3
S/P-DIF op
AES3id
S/P-DIF co
Unidirectional format and sampling rate conversion from AES3id to AES3, AES3id, S/P-
DIF coaxial + optical, referenced by an externally applied AES11 clock signal.
X-SRC
BI-DIR
UNI-DIR AES3
S/P-DIF op SRC
REFERENCE
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
AES3id
S/P-DIF co
AUDIO IN
AES11
WCLK AES3
S/P-DIF op
AES3id
S/P-DIF co
Unidirectional format and sampling rate conversion from S/P-DIF optical to AES3,
AES3id, S/P-DIF coaxial + optical, referenced by an externally applied AES3 signal.
X-SRC
BI-DIR
UNI-DIR AES3
S/P-DIF op SRC
REFERENCE
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
AES3id
S/P-DIF co
AUDIO IN
AES11
WCLK AES3
S/P-DIF op
AES3id
S/P-DIF co
Unidirectional format and sampling rate conversion from S/P-DIF coaxial to AES3,
AES3id, S/P-DIF coaxial + optical, referenced by the internal clock base with 192.0kHz.