General instructions
To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture, direct
sunlight or excessive heat from sources such as radiators or spotlights. No user serviceable parts are inside. Repair and maintenance must be carried out by qualified personnel authorized by MUTEC GmbH!
The unit has been designed for operation in a standard domestic environment. Do NOT expose the unit
and its accessories to rain, moisture, direct sunlight or excessive heat produced by such heat sources as
radiators or spotlights! The free flow of air inside and around the unit must always be ensured.
CAUTION
RISK OF
ELECTRICAL SHOCK!
Initial operation
Prior to the init ial operation of the unit , the ap plianc e, its a ccessorie s and pac kaging m ust be
inspecte d for any si gns of ph ysical damag e that may h ave occurred du ring tra nsit . If the un it has
been da maged mechanicall y or if liquids have been spilled i nside t he encl osure , the app liance m ay
not be co nnec ted to the mains or m ust be disconnec ted fro m the mains imme diatel y! If the unit is
damag ed, please do N OT return it to MUTEC Gmb H, but no tify your deal er and th e shipp ing com pany immediat ely, oth erwise clai ms for damage or replac ement m ay not be granted .
If the device is left in a low-temperature environment for a long time and then is moved to a roomtemperature environment, condensation may occur on the inside and the exterior. To avoid shortcircuits and flashovers, be sure to wait one or two hours before putting the device into operation.
Power supply
The device contains a self-adapting wide-range power supply supporting the majority of global standard line voltages within a range of 90…250 V, with no need for making adjustments. Make sure that
your line-voltage source provides a supply voltage within the specified range. In addition, make sure
that the device is properly grounded via the local electric installation.
Pleas e use th e enclo sed po wer cord ( see packaging) to connect th e unit to th e mains . Switch the
unit of f before you at tempt t o connect it to the mains . Connect th e power cord to the u nit, then
to a standard 3 -pin mains outlet. To dra w the power cord , never p ull on the c able but on the mains
plug!
The uni t must b e grounded during operation!
For information on the power-inlet wiring, refer to the »Wirin g of connectors« section in the
appendix. Disconnect the device from the mains when not using it for an extended period!
Declaration of Conformity
We herewith confirm that the product complies with the European
Commission’s standards on electromagnetic compatibility.
Interference emission: EN 50081-1, 1992
Resistance to interference: EN 50082-1, 1992
Presupposed as operation condition is that all clock outputs are connected with high-quality and good shielded BNC 75 ohms cable.
This symbol, a flash of lightning inside a triangle, alerts
you to the presence of uninsulated dangerous voltage
inside the enclosure - voltage that may be sufficient to
constitute a risk of shock.
This symbol, an exclamation mark inside a triangle,
alerts you to important operating or safety instructions
in this manual.
WARRANTY REGULATIONS
§1 Warranty
MUTEC GmbH warrants the flawless performance of this product to the original buyer for a period of two (2) years from the date of purchase. If any failure occurs within
the specified warranty period that is caused by defects in material and/or workmanship, MUTEC GmbH shall either repair or replace the product free of charge within 90
days. The purchaser is not entitled to claim an inspection of the device free of charge during the warranty period. If the warranty claim proves to be justified, the product
will be returned freight prepaid by MUTEC GmbH within Germany. Outside Germany, the product will be returned with the additional international freight charges payable
by the customer. Warranty claims other than those indicated above are expressly excluded.
§2 Warranty transferability
This warranty is extended exclusively to the original buyer who bought the product from a MUTEC GmbH specialized dealer or distributor, and is not transferable to anyone
who may subsequently purchase this product. No other person (retail dealer, distributor, etc.) shall be entitled to give any warranty promise on behalf of MUTEC GmbH.
§3 Waranty regulations
The return of the completed registration card, or online registration on one of the websites specified below, is a condition of warranty. Failing to register the device before
returning it for repair will void the extended warranty.
The serial number on the returned device must match the one stated on the registration card or entered during online registration. Otherwise, the device will be
returned to the sender at the sender’s expense.
Any returned device must be accompanied by a detailed error description and a copy of the original sales receipt issued by a MUTEC dealer or distributor.
The device must be returned free of shipping expenses and in the original package, if possible; otherwise, the sender has to provide comparably protective packaging.
The sender is fully responsible for any damage or loss of the product when shipping it to MUTEC GmbH.
§4 Limitation of warrant y
Damages caused by the follow ing condition s are not covered b y this war ranty:
Damages caused by every kind of norm al wear an d tear (e.g. displays, L EDs, potentiometers , fader s, switche s, buttons, conn ecti ng elem ents , print ed labe ls, co ver
glasses, cover prints, and similar parts).
Functional failure of t he prod uct caused b y improper ins tallation (pleas e observe CM OS comp onent s handling ins truc tions!), negle ct or misuse of
the pro duct , e.g. fa ilure to o perate the unit i n compliance wi th the in stru ctions given in the us er or servic e manual s.
Damage caused by any form of ex ternal m echan ical im pact o r modif icati on.
Damage caused by the user’s f ailure to connect and operate t he unit in compli ance with loca l safet y regu lation s.
Damage caused by forc e majeur e (fire , explo sion, flood , lightning, war, vandalism, etc.).
Consequential damages or d efec ts in produc ts fro m other manufac turers as well as any costs re sulting from a loss of pr oduc tion.
Repair s carr ied out b y pers onnel w hich is n ot authorized f rom MUT EC GmbH w ill void the warranty. Adaptations and modifications to the device made with regard to
national, technical, or safety regulations in a country or of the customer do not constitute a warranty claim and should be set with MUTEC GmbH in advance.
§5 Repairs
To obtain warranty service, the buyer must call or write to MUTEC GmbH before returning the unit. All inquiries must be accompanied by a description of the problem and
the original buyer’s invoice. Devices shipped to MUTEC GmbH for repair without prior notice will be returned to the sender at the sender’s expense. In case of a functional
failure please contact:
MUTEC Gesellschaft fuer Systementwicklung und Komponentenvertrieb mbH
Siekeweg 6/8 • 123 09 Berlin • Germany • Fo n 030 -7468 80- 0 • Fax 030-746 880-9 9 • Tecsupp ort @MUTEC-net.de • www.MUTEC-net.de
Thank you for purchasing a MC-3.2 SMART CLOCK HD,
Video Sync Master Clock Generator from MUTEC GmbH.
Please keep this manual for future reference!
Digital Audio & SD/HD
General Function Description
MC-3.2 SMART CLOCK HD is a unique, extremely high-flexible audio and
video sync reference clock generator.
The unit offers three simultaneously useable reference signal generators
in one box which generate standard definition (SD) bi-level video, high
definition (HD) tri-level video and the most common audio clock signals
like Word Clock, so-called Super Clock, AES/EBU and S/PDIF blank frames for
synchronization of digital audio and SD/HD video devices such as hard-disk
recorders, A/V workstations, video recorders, digital mixing consoles, AD/DA
converters, musical instruments. Simultaneous use of all available clock signals enables each device in the recording studio to be individually synchronized. In addition, different clock rates of all audio-related clock signals can
be simultaneously output. Thus, new devices with higher clock rates may be
integrated into an existing studio set-up without difficulty.
The SD bi-level video sync reference generator of MC-3.2 SMART CLOCK HD
supports PAL 24fps, PAL 25fps, NTSC 29.97fps and NTSC 30fps as Black + Burst,
composite sync and color bar. Especially for the PAL 24fps standard a pull
down factor of 0.1% can be set additionally to output PAL 23.98fps.
The MC-3.2’s HD tri-level video sync reference generator offers 720p, 1080i
and 1080p formats with frame rates at 24Hz, 25Hz, 30Hz, 50Hz, 60Hz and
the respective pull down factors of 0.1%.
The audio clock generator of SMART CLOCK HD offers 7 basis Ultra
low-jitter Word Clocks from 32.0kHz up to 192.0kHz, which are then
independently distributed to four clock output pairs with multipliers of x1,
x2 and x4 for a maximum clock rate of 768.0kHz. For the synchronization of
older digidesign ProTools™ systems, the respective Word Clock frequencies
can be transferred as Word Clock x 256 (also called Super Clock). AES/EBU
and S/PDIF (optical + coaxial) blank frame sync signals are available from
32.0kHz up to 192.0kHz. Additionally all common pull up and down factors
can be adjusted freely for film/video and audio transfers.
All reference signal generators can be set independently. Phase relations
between the individual generators are recognized and adjusted
automatically by the system.
The design advantage of the MC-3.2 SMART CLOCK HD is its high-precision
clock frequency basis, from which all reference signals are simultaneously
derived. As a result, the individual clock signals generated feature the same
frequency accuracy and time base! The frequency generation is accurate
to < ± 0.5ppm and thus complies with AES 11, Grade 1, as well as broadcast
specifications.
This all makes MC-3.2 SMART CLOCK HD without doubt the most flexible
A/V clock generator in a ½ 19“ case currently available in the industry!
The grey boxes contain supplementary
informationen for the corresponding
sections in the text columns. The content of
the individual box refers to the description
in the text column beside the box.
Boxes which contain a triangle with
an exclamation mark inside should
be read carefully! These include
additional information which are of major
importance for the functional descriptions
in the text column.
Three independent reference clock generators in one box.
Generation of SD bi-level video sync and HD tri-level video reference sync
signals with different frames rates simultaneously.
Audio and video signals coupled to one common AES11, Grade 1,
basis clock.
Generation of 7 Ultra low-jitter basis Word Clock rates up to 192.0kHz.
Word Clock outputs can be multiplied with factors x1, x2, x4 and x256
for a total of 16 different Word Clock rates.
Simultaneous output of different audio clock rates.
Phase-synchronized generation of S/PDIF and AES/EBU blank frames.
All adjustments are retained after power-down.
Simple, new user interface.
Built-in international power supply.
Applications
A / V synchronization
Ultra low-jitter clock supply for entire studio
Acoustical improvement of AD/DA converters
Elimination of »clicks and pops« in audio recordings
Stellate clock signal supply
Multiple clock rate synchronization
Film, video and audio transfers
Peripheral Products
MC-2
For larger equipment set-ups, which require more AES/EBU clock outputs
than are provided by the MC-3.2 SMART CLOCK HD, MUTEC offers a
complementary 6-channel AES/EBU signal distribution amplifier and
converter which is called: MC-2.
MC-5
For set-ups, which require more SD/HD video sync outputs than are provided by the MC-3.2 SMART CLOCK HD, MUTEC offers a complementary
12-channel SD/HD video routing matrix and signal distribution amplifier
which is called: MC-5.
MC-7
The MC-7 is a flexible, high-performance 8-channel Word Clock distribution amplifier and audio clock converter.
For all peripheral products please have a look on our website:
www.MUTEC-NET.de !
This red LED lights up when the unit is switched on with the rear panel
POWER switch (on condition that the adjusted voltage matches your local
voltage).
2 MENU
Use this key to access the different functional menus.
3 SELECT
Use this key to select a function from a specific functional menu.
VIDEO
4 SD
This functional menu lets you choose between different SD video standards,
output formats and frame rates.
VIDEO + HD FPS
5 HD
These two functional menus are working simultaneously together and let
you choose between different HD tri-level video standards (HD VIDEO)in
combination with different and frame rates (HD FPS).
BASIS
6 CLK
This functional menu enables the setting of the basis audio clock rate
between 32.0kHz and 192.0kHz which applies to all Word Clock, AES/EBU
and S/PDIF outputs.
S
7 PULL
This functional menu allows for adding the common pull up and pull down
frequency factors to the basis audio clock rate setting for film/video and
audio transfers.
MULTIPLIERS
8 CLK
This functional menu lets you determine the factor by which the basis audio
clock rate is multiplied additionally. This setting can be made individually
for every Word Clock pair of outputs as well as for the AES/EBU and S/PDIF
outputs.
9 WCLK OUT 4
This pair of Word Clock outputs transfers either all standard Word Clock
rates as well as Word Clock x 256 for older digidesign ProTools™ systems.
Their numbering is aligned to the corresponding functional menu on the
front panel. For adjusting these outputs see chapter OPERATION.
9432515 67
Refer to the OPERATIONS chapter for more
information.
For detailed specifications on all terminals,
refer to the »Pin Assignment of the
Connectors« and »Technical Data« in the
chapter APPENDIX.
Refer to the »Technical Data« section in the
APPENDIX for a full list of all available SD
and HD video format and frame rate combinations.
Refer to the »Generatable Word Clock Frequencies« and »Generatable AES/EBU and
S/PDIF Frequencies« sections in the APPENDIX
for a full list of all Word Clock, AES/EBU and
S/PDIF clock rates that can be generated.
This pair of outputs transfers HD tri-level video sync reference clock signals.
The individual BNC connectors of the output pair are marked as A and B; this
allows, for example, for a simple documentation of the connected devices.
For adjusting these outputs see chapter OPERATION.
2 SD VIDEO OUT
This pair of outputs transfers SD video sync reference clock signals. The
individual BNC connectors of the output pair are marked as A and B; this
allows, for example, for a simple documentation of the connected devices.
For adjusting these outputs see chapter OPERATION.
3 WC LK OUT 1 – 3
These 3 pairs of Word Clock outputs transfers either all standard Word
Clock rates as well as Word Clock x 256 for older digidesign ProTools™ systems. Their numbering is aligned to the corresponding functional menus on
the front panel. The individual BNC connectors of an output pair are marked
as A and B; this allows, for example, for a simple documentation of the connected devices. For adjusting these outputs see chapter OPERATION.
4 AES/EBU OUT 5
These 2 AES/EBU outputs transmit a transformer-balanced electrical
blank-frame clock signal. Their numbering is aligned to the corresponding
functional menu on the front panel. The individual XLR connectors of this
output pair are marked as A and B; this allows, for example, for a simple
documentation of the connected devices.For adjusting these outputs see
chapter OPERATION.
5 S/PDIF OUT 6
This 2 S/PDIF outputs, available as optical and coaxial interfaces, transmit an
optical S/PDIF blank frame signal and an unbalanced electrical S/PDIF blank
frame signal. Their numbering is aligned to the corresponding functional
menu on the front panel. For adjusting these outputs see chapter OPERATION.
6 MAINS IN, Power Switch + Mains connector (IEC)
This is the main switch for switching the device on and off. Connect the
supplied IEC power cable to the device‘s mains connector. Make sure that
the power switch is turned off before connecting the device to your power
source finally. Line voltages within the range of 90…260 V with a frequency
of 50 or 60 Hz can be applied. The internal power supply will automatically
make all necessary adjustments.
Heed the SAFETY INSTRUCTIONS at the beginning of this manual!
The unit was packed carefully. Nevertheless we recommend to check the
content directly after opening the package:
1 x MC-3.2 SMART CLOCK HD
1 x Power cable
1 x Manual
4 x Rubber feets
1 x Registration card
Placing the Device
The unit should be set up as closely as possible to the devices to which it
will be connected, so as to avoid excessive cable lengths. Use the 4 rubber
feets enclosed with the appliance and stick them symmetrically on the
bottom side of the unit to protect the enclosure and supporting surface
from being damaged. When the unit is installed in a rack, the rubber feets
cannot be attached to save space.
The device can be mounted into a standard 19“ rack and will require one
unit. For this installation MUTEC offers an optional set of rack ears (MW05/19, order no. 8020-035). The mounting depth including the terminals is
175mm/6.9“. Another 150mm/5.9“ should be added for the required cables.
Additional slide-in rails on the rack inside are recommended for safe installation. This will also avoid long-term mechanical deformation of the housing.
If there are any damages please refer to
SAFETY INSTRUCTIONS, Initial Operation,
and WARRANTY REGULATIONS.
should be read carefully.
produced by radiators, heaters, or spot
lights! Sufficient air circulation in the
environment of the device must be ensured!
The condition of the packaging
material and the device should
be checked carefully additionally.
Before installing the unit the section
SAFETY INSTRUCTIONS located
at the beginning of this manual
Never expose the device and
accessories to rain, moisture,
direct sunlight, or excessive heat
Wiring the Word Clock and Video Interfaces
To allow for the synchronization of signals, the interfaces of all devices
involved must be properly connected to each other, so as to ensure a logical
signal flow. Always be sure to connect the Word Clock outputs of the MC-
3.2 SMART CLOCK HD to the corresponding input of the devices you wish to
synchronize. Cable lengths should be kept as short as possible to minimize
signal losses and/or interferences!
For the transmission of Word Clock or video signals electrical, unsymmetrical cables with a resistance of 75 Ω and BNC connectors on both ends are
used. Typically, such cables are marked »RG-59U, RG59B/U«.
Additionally, you should make sure that the Word Clock or video inputs
to be connected to the MC-3.2 SMART CLOCK HD’s outputs have a 75 Ω
terminating resistor! Most Word Clock or video inputs allow for enabling/
disabling the termination with a so-called »termination-switch«, which may
be located on the outside or inside of the device.
For devices which have no termination of the Word Clock input, e.g. RME
Hammerfall with Word Clock i/o, Alesis BRC or M-Audio ProFire Lightbridge,
you can use an additional BNC-T piece to terminate the input. Plug the T
piece with its center connector into the input of the receiving device. Then,
connect the cable coming from the MC-3.2 SMART CLOCK HD to one of the
lateral connectors, and the other connector of the BNC-T piece to a 75 Ω
resistor forming the BNC termination.
Basically, you should avoid »looping through« Word Clock leads by means
of passive BNC-T pieces to preserve the signal quality, as level drops will be
the result. If there is no other way to wire your set-up, please make sure
that all Word Clock inputs (except for the last device in the chain) have
their terminations disabled! In a serial Word Clock chain only the last clock
input should have a termination! Never connect more than three devices in
series to one output!
It is imperative that the lengths
of all cables connected are largely
the same, as this is the only way to
ensure that all devices will be synchronized
in phase (exception: cable tolerances).
Please make sure that the cable used has a
resistance of 75 Ω, in compliance with the
specifications! If a cable with a different
resistance is used, a dramatic deterioration
of the signal quality can be the result! In
this case, the perfect synchronization of all
devices involved could be impaired.
We recommend using high-grade cables
with a good shielding for your clock signal
leads, in particular, if you need to transmit
Word Clock x 256 (so-called Super Clock)
signals over greater distances. In any case, a
length of max. 10 meters (approx. 30 feets)
should never be exceeded!
Since some manufacturers offer optimized
cables for the transmission of digital S/PDIF
and AES/EBU audio signals, it will be a good
idea to ask your retailer for specific cables.
Especially when working with high
AES/EBU clock rates well shielded
clock lines are imperative to avoid
increased radiation! Standard cables are normally useable for clock rates up to 50.0kHz.
Special shielded cable material should be
used for transfer of higher clock rates.
MUTEC offers optical cables of various
lengths that have been specifically tested
for the transmission of S/PDIF and ADAT™
signals (retailers and distributors only)!
Connect the AES/EBU interfaces with the help of balanced electrical cables
equipped with XLR connectors on both ends. The specifications stipulate a
specific cable resistance of 110 Ω (ask your retailer for a confirmation of this
value when purchasing the cables).
Connect the coaxial S/PDIF interface with the help of unbalanced electrical cables equipped with cinch connectors on both ends. The specifications
stipulate a specific cable resistance of 75 Ω (ask your retailer for a confirmation of this value when purchasing the cables).
Connect the optical S/PDIF interface with the help of Toshiba TOSLINK™
compliant optical fiber cables. Here, you can use both plastic and glass
fiber-based cables. When using plastic fiber cables, lengths of 10 meters
should not be exceeded, so as to ensure the reliable transmission of signals.
Glass fiber cables can transfer data reliably even over greater distances.
Operating the MC-3.2 SMART CLOCK HD is very simple! The device is fully
operated using the 2 keys at the front panel.
1 Switching the MENU key toggles between different basic function menus.
2 Switching the SELECT key activtes individual functions within one
function menu.
2. SELECT
selects individual
1. MENU
function menus.
MENU + SELECT operation
selects individual
functions within
one function
area.
Menus
Menus
Functions
Functions
Steps of Operation
1 First press on MENU or SELECT key enables the last selected function
within the last selected function menu. The corresponding LED is
beginning to flash.
2 Every press on SELECT key will select a new function. The LED of every
selected function will flash accordingly and the corresponding function is
available at once.
3 When the needed function is selected, do not press the switches again!
After a period of approx. 4 seconds the LED in front of the selected
function will stop flashing.
All user-specific function settings
are available furthermore when
power is restored.
This menu enables you to set the internal standard definition (SD) video
sync reference generator to different standards. It is a multifunctional
menu which means, the two LED rows indicate together the different
possible settings. The adjusted video standard is transfered to both SD
video sync outputs at the rear.
The names of the LEDs in this menu:
PAL: 25fps, 625 lines
SL: 24fps, 625 lines
PAL
NTSC: 29.97fps, 525 lines
– 0.1%: Pull down for PAL SL with 0.1%, 23.98fps, 625 lines
C: Composite Sync, this function outputs a SD video composite
SD VIDEO
sync signal without color bust.
B: Black + Burst, this function outputs a SD video composite sync
signal with inserted color bust.
C + B: Color Bar, this function outputs a SD video color bar signal.
Both LEDs in front of a video standard light simultaneously.
You can choose the different functions within this menu by pressing the
SELECT button repeatedly.
This menu enables you to set the internal HD tri-level (HD) video sync
reference generator to different standards. It is a multifunctional menu
which means, the two LED rows ‘HD VIDEO’ and ‘HD FPS’ indicate together
the different possible settings. The selected video standard is transfered to
both HD video sync outputs at the rear.
The names of the LEDs in this menu:
720p: 720 lines, progressive
1080i: 1080 lines, interlaced + progressive segmented frame
1080p: 1080 lines, progressive
– 0.1%: Pull down for all HD tri-level standards with 0.1%
24: 24fps rate
25: 25fps rate
30: 30fps rate
x
2: Doubling of the previously mentioned frame rates
You can choose the different functions within this menu by pressing the
SELECT key repeatedly.
HD VIDEO + HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 23.98fps.
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 24fps.
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 25fps.
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 29.97fps.
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 30fps.
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 50fps
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 59.94fps.
x
2
This setting outputs a
24
720 lines progressive
25
HD tri-level reference
30
signal with 60fps.
x
2
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
720 p
1080 i
1080 p
– 0.1%
HD
VIDEO HD FPS
This setting outputs
24
a 1080 lines progres-
25
sive segmented frame
30
(PsF) HD tri-level
x
2
reference signal with
23.98fps.
This setting outputs
24
a 1080 lines progres-
25
sive segmented frame
30
(PsF) HD tri-level
x
2
reference signal with
24fps.
This setting outputs
24
a 1080 lines interlace
25
HD tri-level reference
30
signal with 50fps.
x
2
This setting outputs
24
a 1080 lines interlace
25
HD tri-level reference
30
signal with 59.94fps.
x
2
This setting outputs
24
a 1080 lines interlace
25
HD tri-level reference
30
signal with 60fps.
x
2
This setting outputs a
24
1080 lines progressive
25
HD tri-level reference
30
signal with 23.98fps.
x
2
This setting outputs a
24
1080 lines progressive
25
HD tri-level reference
30
signal with 24fps.
x
2
This setting outputs a
24
1080 lines progressive
25
HD tri-level reference
30
signal with 25fps.
x
2
Generally, there is no difference
between the standards 1080i and
1080PsF when using them for
sync signals only. The progressive frame is
devided into two segments. These segments
are comparable to interlaced fields, but
there is no motion between the two fields
which make the video frame.
MC-3.2 SMART CLOCK HD let’s you set the SD and HD video sync reference generators independently from each other. But both video generators are always frequency-locked to one common AES11, Grade 1, clock
basis, even when their frame rates are different.
When adjusting video frame rates of equal basis rates, the system automatically phase-locks both video generators. Due to this, the vertical sync
patterns of the SD and HD video sync reference signal start exactly at the
same position.
Furthermore, MC-3.2 auto-detects integer relationsships between the
adjusted video standards and the basis audio clock rate (CLK
applies especially when 24fps or 25fps based video standards are selected
and the basis audio clock rate is set to 48.0kHz, 96.0kHz or 192.0kHz.
In that case, the AES/EBU and S/PDIF generators use the video frame to
lock the Z-preamble of the AES channel block start, aligned to AES111997/2003 and EBU R83-1996.
Within this function menu you may select the required basis clock
frequency for your studio set-up. This selection serves as the basic setting
for all WCLK output pairs as well as the AES/EBU and S/PDIF outputs. There
are 7 different basis clock rates adjustable by pressing the SELECT key for
different times. The LEDs display the selected clock rate as follows:
32.0kHz
176.4kHz
The factory default is set at 44.1kHz.
44.1kHz48.0kHz88.2kHz96.0kHz
192.0kHz
PULLS
This function menu enables you to set different so-called ‘pull factors’.
These correction factors are used in post production environments where
frame rate differences between film and video standards need to be
compensated. The pull factors influence the adjusted clock rates of all Word
Clock, AES/EBU and S/PDIF outputs. The frequencies of the video reference
generators are, however, unaffected.
Select the percentage by which the output clock rates are to be corrected
by repeatedly pressing the SELECT key. No correction factors are generated
when no LED lights! The individual values result from the below mentioned
mathematical relationships (put into brackets).
The names of the LEDs in this menu:
+ 0.1%: Pull up with 0.1% (1001/1000)
- 0.1%: Pull down with 0.1% (1000/1001)
+ 4.1666%: Pull up with 4.1666% (25/24)
- 4.0%: Pull down with 4.0% (24/25)
CLK
PULLS
BASIS
During normal operation of MC-3.2
SMART CLOCK HD, all LEDs must
be off !
CLK MULTIPLIERS
These multiply functions are separately available for all 4 Word Clock
output pairs as well as for the AES/EBU and S/PDIF outputs. Their
numberings are aligned to the output numbers. Select the prefered output
with the MENU key and choose the needed multiply factor by pressing the
SELECT key accordingly. The factory default is set to x 1.
WCLK multipliers 1 – 4
For every of these Word Clock output pairs are 4 multipliers available:
x 1, x 2, x 4, x 256
The multiply functions »x 1, x 2, x 4« multiply all available basis clocks up to
the highest possible Word Clock rate of 768.0kHz (192.0kHz basis clock x 4).
The function »x 256« multiplies only the basis clocks 44.1kHz and 48.0kHz
to output the so-called Super Clock rates necessary for older digidesign
ProTools™ MX systems. If a different basis clock is selected, the »x 256«
function is not accessible.
WCLK multiplier 5
For the AES/EBU output pair are 3 multiply functions available:
x 1, x 2, x 4
Due to the maximum possible AES/EBU clock frequency of 192.0kHz, the
functions of these multipliers are dependent on the adjusted basis clock.
Example 1
The basis clock runs at 32.0kHz, 44.1kHz or 48.0kHz:
x 1: AES/EBU outputs run at 32.0kHz, 44.1kHz or 48.0kHz
x 2: AES/EBU outputs run at 64.0kHz, 88.2kHz or 96.0kHz
x 4: AES/EBU outputs run at 128.0kHz, 176.4kHz or 192.0kHz
Example 2
The basis clock runs at 88.2kHz or 96.0kHz:
x 1: AES/EBU outputs run at 88.2kHz or 96.0kHz
x 2: AES/EBU outputs run at 176.4kHz or 192.0kHz
x 4: AES/EBU outputs run at 176.4kHz or 192.0kHz
Example 3
The basis clock runs at 176.4kHz or 192.0kHz:
x 1: AES/EBU outputs run at 176.4kHz or 192.0kHz
x 2: AES/EBU outputs run at 176.4kHz or 192.0kHz
x 4: AES/EBU outputs run at 176.4kHz or 192.0kHz
The factory default is set at x 1.
WCLK multiplier 6
Both S/PDIF outputs, optical and coaxial, receive same clock rate settings.
For the S/PDIF output pair are 3 multiply functions available:
x 1, x 2, x 4
Due to the maximum possible S/PDIF clock frequency of 192.0kHz, the
functions of these multipliers are dependent on the adjusted basis clock.
Example 1
The basis clock runs at 32.0kHz, 44.1kHz or 48.0kHz:
x 1: S/PDIF outputs run at 32.0kHz, 44.1kHz or 48.0kHz
x 2: S/PDIF outputs run at 64.0kHz, 88.2kHz or 96.0kHz
x 4: S/PDIF outputs run at 128.0kHz, 176.4kHz or 192.0kHz
Example 2
The basis clock runs at 88.2kHz or 96.0kHz:
x 1: S/PDIF outputs run at 88.2kHz or 96.0kHz
x 2: S/PDIF outputs run at 176.4kHz or 192.0kHz
x 4: S/PDIF outputs run at 176.4kHz or 192.0kHz
Example 3
The basis clock runs at 176.4kHz or 192.0kHz:
x 1: S/PDIF outputs run at 176.4kHz or 192.0kHz
x 2: S/PDIF outputs run at 176.4kHz or 192.0kHz
x 4: S/PDIF outputs run at 176.4kHz or 192.0kHz