RME Audio Multiface Instruction Manual
™
®
User's Guide
Hammerfall® DSP System
The most compact professional multitrack recording system ever!
24 Bit / 96 kHz üü
SyncAlign
8 + 8 + 2 Channels Analog / ADAT / Stereo Interface
24 Bit / 96 kHz Analog Stereo Monitor
Multiface
TotalMix
ZLM® SyncCheck®
PCI Busmaster Digital I/O System
PCI and CardBus Interface
ADAT Sync In
General
1 Introduction............................................................ 6
2 Package Contents.................................................. 6
3 System Requirements ............................................ 6
4 Brief Description and Characteristics................... 7
5 Hardware Installation
5.1 PCI Interface........................................................ 7
5.2 CardBus Card....................................................... 7
5.3 Notes on Power Supply........................................ 8
6 First Usage – Quick Start
6.1 Connectors and Front Panel................................ 8
6.2 Quick Start.......................................................... 9
6.3 Notes on Laptops and CardBus..........................10
7 Accessories...........................................................11
8 Warranty ................................................................12
9 Appendix ...............................................................12
Driver Installation and Operation - Windows
10 Driver and Firmware
10.1 Driver Installation...............................................16
10.2 Driver Update.....................................................16
10.3 Deinstalling the Drivers ......................................16
10.4 Firmware Update ................................................17
11 Configuring the Multiface
11.1 Settings Dialog...................................................18
11.2 Clock Modes – Synchronization..........................20
12 Operation and Usage
12.1 Playback ............................................................22
12.2 DVD Playback (AC-3 / DTS) under MME............23
12.3 Low Latency under MME ....................................24
12.4 Multi-client Operation .........................................24
12.5 Digital Recording................................................25
12.6 Analog Recording...............................................26
13 Operation under ASIO 2.0
13.1 General..............................................................26
13.2 Known Problems................................................26
14 Operation under GSIF ...........................................27
15 Using more than one Hammerfall DSP ................28
16 DIGICheck..............................................................28
17 Hotline – Troubleshooting
17.1 General..............................................................29
17.2 Installation..........................................................30
18 Diagrams
18.1 Channel Routing ASIO 96 kHz ...........................29
18.2 Channel Routing MME 96 kHz............................30
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Driver Installation and Operation - Mac OS X
19 Driver and Flash Update
19.1 Driver Installation .............................................. 32
19.2 Driver Update.................................................... 32
19.3 Flash Update..................................................... 32
20 Configuring the Multiface
20.1 Settings Dialog.................................................. 33
20.2 Clock Modes – Synchronization......................... 35
21 Mac OS X FAQ
21.1 Round about Driver Installation ......................... 37
21.2 MIDI doesn't work.............................................. 37
21.3 Supported Sample Rates................................... 38
21.4 Repairing Disk Permissions............................... 38
21.5 PCI Compatibility .............................................. 38
21.6 Various Information........................................... 38
22 Hotline – Troubleshooting................................... 39
23 Diagram: Channel Routing at 96 kHz..................... 40
Disconnect Mode, Connections and TotalMix
24 Disconnect Mode ................................................. 42
25 Analog Connections
25.1 Line Inputs......................................................... 42
25.2 Line Outputs ...................................................... 43
25.3 Headphones...................................................... 43
26 Digital Connections
26.1 ADAT................................................................ 44
26.2 SPDIF ............................................................... 44
26.3 Word Clock........................................................ 45
26.4 MIDI .................................................................. 45
27 Word Clock
27.1 Technical Description and Background.............. 46
27.2 Cables and Termination .................................... 46
27.3 General Operation............................................. 47
28 TotalMix: Routing and Monitoring
28.1 Overview........................................................... 48
28.2 The User Interface............................................. 50
28.3 Elements of a Channel...................................... 51
28.4 Tour de TotalMix ............................................... 51
28.5 Submix View ..................................................... 53
28.6 Mute and Solo ................................................... 53
28.7 Quick Access Panel ........................................... 54
28.8 Presets.............................................................. 54
28.9 Monitor Panel.................................................... 56
28.10 Preferences..................................................... 56
28.11 Editing the Names ........................................... 57
28.12 Hotkeys ........................................................... 58
28.13 Menu Options.................................................. 59
28.14 Level Meter ..................................................... 60
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29 TotalMix: The Matrix
29.1 Overview............................................................61
29.2 Elements of the Matrix View...............................61
29.3 Usage.................................................................61
29.4 Advantages of the Matrix....................................62
30 TotalMix Super-Features
30.1 ASIO Direct Monitoring (Windows only)..............62
30.2 Selection and Group based Operation................63
30.3 Copy Routings to other Channels .......................63
30.4 Delete Routings..................................................63
30.5 Recording a Subgroup (Loopback) .....................64
30.6 Using external Effects Devices ...........................65
31 TotalMix MIDI Remote Control
31.1 Overview............................................................66
31.2 Setup .................................................................66
31.3 Operation...........................................................66
31.4 Mapping.............................................................67
31.5 Simple MIDI Control...........................................68
31.6 Loopback Detection............................................68
Technical Reference
32 Tech Info................................................................70
33 Technical Specifications
33.1 Analog................................................................71
33.2 Digital.................................................................71
33.3 Digital Inputs......................................................72
33.4 Digital Outputs ...................................................72
33.5 MIDI...................................................................72
33.6 Transfer Modes: Resolution/Bits per Sample......73
33.7 General..............................................................73
34 Technical Background
34.1 Lock and SyncCheck ..........................................74
34.2 Latency and Monitoring......................................75
34.3 DS – Double Speed............................................76
34.4 AES/EBU – SPDIF.............................................77
35 Changing the Jumper Settings ............................78
36 Diagrams
36.1 Block Diagram Multiface ....................................80
36.2 Connector Pinouts..............................................81
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User's Guide HDSP System Multiface © RME
User's Guide
Multiface
General
User's Guide HDSP System Multiface © RME
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1. Introduction
Thank you for choosing the RME Hammerfall DSP system. This unique audio system is capable of transferring analog and digital audio data directly to a computer from practically any device. The latest Plug and Play technology guarantees a simple installation, even for the inexperienced user. The numerous unique features and well thought-out configuration dialog puts the
Hammerfall DSP at the very top of the range of computer-based audio interfaces.
The package contains drivers for Windows 2000 SP4, Windows XP, and Mac OS X.
Our high-performance philosophy guarantees maximum system performance by executing as
many functions as possible not in the driver (i.e. the CPU), but directly within the audio hardware.
2. Package Contents
Please check your Hammerfall DSP component's package to include each of the following:
PCI Interface
• PCI card HDSP
• Quick Info guide
• RME Driver CD
• Cable IEEE1394, 4.5 m (15 ft)
CardBus Interface
• CardBus card
• Quick Info guide
• RME Driver CD
• Cable IEEE1394, 4.5 m (15 ft)
• 12 V car cable
• Battery cable
• Power supply 12 V / 1.25 A and power cord
Multiface
• I/O-box Multiface
• Quick Info guide
• RME Driver CD
• 1 optical cable (TOSLINK), 2 m (6.6 ft)
3. System Requirements
• Windows 2000 SP4, Windows XP, Mac OS X (10.28 or higher)
• PCI Interface: a free PCI rev. 2.1 Busmaster slot
• CardBus Interface: a free PCMCIA Slot type II, CardBus-compatible
Note: Examples and detailed descriptions of suitable audio desktop systems can be found in
the Tech Info RME Reference PCs: Hardware recommendations. Information on compatibility
and performance of notebooks/laptops is included in RMEs Tech Infos about notebooks, HDSP
System – Notebook Basics and Tests.
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4. Brief Description and Characteristics
• Hammerfall design: 0% (zero!) CPU load, even using all 36 ASIO channels
• All settings can be changed in real-time
• Analog, ADAT and SPDIF I/Os can be used simultaneously
• 8 buffer sizes/latencies available: 1.5 / 3 / 6 / 12 / 23 / 46 / 93 / 186 ms
• 4 channels 96 kHz/24 bit record/playback via ADAT optical (S/MUX)
• Clock modes slave and master
• Automatic and intelligent master/slave clock control
• Unsurpassed Bitclock PLL (audio synchronization) in ADAT mode
• Word clock input and output
• ADAT Sync In (9-pin D-sub) for sample-accurate transfers
• Zero Latency Monitoring for latency-free submixes and perfect ASIO Direct Monitoring
• SyncAlign guarantees sample aligned and never swapping channels
• SyncCheck tests and reports the synchronization status of input signals
• 1 x MIDI I/O, 16 channels high-speed MIDI
• 1 x Analog/Line headphone output, separate output for independent submix
• DIGICheck DSP: Level meter in hardware, peak- and RMS calculation
• TotalMix: 720 channel mixer with 40 bit internal resolution
5. Hardware Installation
5.1 PCI Interface
Before installing the PCI card, please make sure the computer is switched off and the
power cable is disconnected from the mains supply. Inserting or removing a PCI card while
the computer is in operation can cause irreparable damage to both motherboard and card!
1. Disconnect the power cord and all other cables from the computer.
2. Remove the computer's housing. Further information on how to do this can be obtained
from your computer´s instruction manual.
3. Important: Before removing the card from its protective bag, discharge any static in your
body by touching the metal chassis of the PC.
4. Insert the PCI card firmly into a free PCI slot, press and fasten the screw.
5. Replace the computer's housing.
6. Reconnect all cables including the power cord.
7. Connect PCI interface and Multiface using the supplied cable (IEEE1394). This is a standard FireWire cable (6-pin).
5.2 CardBus Card
Before inserting the CardBus card make sure the complete HDSP system is ready for operation!
1. Connect the CardBus card with the Multiface using the supplied cable.
2. Insert the CardBus card with the Hammer logo up into a PCMCIA slot.
3. Plug the power jack of the supplied switching power supply into the connector labeled AUX,
on the rear of the Multiface.
4. Connect power cord to power supply, plug into AC outlet. The green LED of the power supply and the red LED of the Multiface will light up.
5. Switch on the notebook and boot the operating system.
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5.3 Notes on Power Supply
• The CardBus card delivers no power to the Multiface. Therefore a hi-tech switching power
supply is included.
• The PCI card operates as power supply for the attached Multiface via the FireWire cable.
An external power supply is not required.
The Multiface draws a high startup current of more than 2.5 A during initialisation. Current at 12
Volt operating voltage: unloaded 500 mA (6 Watts), loaded 760 mA (9 Watts). Supply voltage
range DC 8 V – 28 V, AC 8 V – 20 V.
6. First Usage – Quick Start
6.1 Connectors and Front Panel
The front of the Multiface features a MIDI input and output, a stereo headphone output and
several status LEDs.
MIDI IN and OUT represent the MIDI input and output, realized as 5-pin DIN jacks.
The LEDs MIDI IN and OUT indicate sent or received data for the MIDI ports.
The INPUT STATE LEDs (WC, SPDIF, ADAT) indicate a valid input signal separately for each
digital input. Additionally, RME's exclusive SyncCheck indicates if one of these inputs is
locked, but not synchronous to the others, in which case the LED will flash. See also chapter
11.2 / 20.2, Clock Modes - Synchronization.
The red HOST LED lights up when the power supply or the computer is switched on, thus signalling the presence of operating voltage. At the same time it operates as Error LED, in case
the I/O-box wasn’t initialised, or the connection to the interface has been interrupted (Error,
cable not connected etc.). It flashes then. After the firmware had been loaded the LED turns
off, signalling a proper operation.
The rear panel of the Multiface has eight analog inputs and outputs, the power socket AUX
(only necessary with CardBus operation), ADAT Sync, Word Clock I/O and both digital inputs
and outputs ADAT and SPDIF.
ADAT I/O (TOSLINK): Can also be used as optical SPDIF input and output, if set up accordingly in the Settings dialog. The Settings dialog is started by clicking on the hammer symbol in
the Task Bar's system tray.
SPDIF I/O coaxial (RCA): Fully AES/EBU compatible by transformer-coupling and level adjustment. The Multiface accepts the commonly used digital audio formats, SPDIF as well as
AES/EBU.
Word Clock I/O (BNC). The word clock input is not terminated.
ADAT Sync In for connection to ADAT Sync of an ADAT recorder. Allows for sample-accurate
synchronization with ASIO 2.0.
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6.2 Quick Start
After the driver installation (see chapter 10 / 19) connect the TRS-jacks with the analog signal
source. Try to achieve an optimum input level by adjusting the source itself. Raise the source’s
output level until the peak level meters in TotalMix reach about –3 dB. In case the levels do not
match at all, the input sensitivity can also be changed via internal jumpers (see chapter 35).
The analog line inputs of the Multiface can be used with +4 dBu and -10 dBV signals. The electronic input stage can handle balanced (TRS jacks) and unbalanced (TS jacks) input signals
correctly.
The Multiface's digital outputs provide SPDIF (AES/EBU compatible) and ADAT optical signals
at the corresponding ports.
An additional stereo output is available on the front. This output is a very low impedance type,
which can also be used to connect headphones.
6.3 Notes on Laptops and CardBus
The HDSP system uses the notebook’s PCMCIA type II port as CardBus interface. Compared
to a PC-Card, which only has access to the outdated ISA-bus, CardBus is a 32 bit PCI interface. Like with a desktop system it’s not possible to remove a PCI device while in operation.
First the operating system has to receive a ‚removal request’, then the device has to be
stopped. Finally the card can be pulled out of the PCMCIA slot.
Windows
When inserting the CardBus card it usually will be detected automatically by the notebook
hardware and then the operating system. A beep signals the detection. In rare cases detection
will fail. If so, simply remove the card and insert it again.
To remove the hardware click on the green arrow symbol in the
systray. It is possible to stop the HDSP directly, or to first call up the
info dialog by double clicking the symbol, and then stopping it.
Mac OS X
When inserting the CardBus card it usually is detected automatically by the notebook hardware
and then by the Mac OS. A CardBus icon will appear on the top menu. A mouse click on the
icon opens a drop-down menu, showing the card's name (Hammerfall DSP) and an option to
switch it off.
To remove the CardBus card click on the menu entry
'Power off card'. The Mac OS internally de-installs the
CardBus card and switches off power (the red Host LED
begins to blink). The card can now be pulled out of the
PCMCIA slot.
Tech Infos
The Hammerfall DSP System was tested thoroughly on several notebooks by RME. Basically
the CardBus card operates with any tested device. Our website hosts several interesting Tech
Infos with background information:
HDSP-System: Notebook Tests – Compatibility and Performance
HDSP System: Notebook Basics - Notebook Hardware
HDSP System: Notebook Basics - Background Knowledge and Tuning
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The mobile operation of the HDSP system can cause problems. Explanations and solutions on
digital noise, ground loops, headphone operation and Line Out wiring, power supplies and the
mobile operation with battery can be found in the Tech Info:
HDSP System: Notebook Basics - The Audio Notebook in Practise.
7. Accessories
RME offers several optional accessories. Additionally parts of the HDSP system are available
separately.
Part Number Description
36000 19“, 1UH Universal rack holder
This 19" rack holder has holes for Digiface and Multiface. Two units can be installed side by
side in any combination. The rack holder also includes holes for nearly all 19" half-rack units
from other manufacturers.
36001 Firewire cable IEEE1394 6M/6M, 1 m (3.3 ft)
36002 Firewire cable IEEE1394 6M/6M, 3 m (9.9 ft)
36005 Firewire cable IEEE1394 6M/6M, 5 m (16.4 ft)
36010 Firewire cable IEEE1394 6M/6M, 10 m (32.8 ft)
Firewire cable for the HDSP system, both sides 6-pin male. Cable longer than 16 ft is not allowed for FireWire, therefore hard to get in computer shops. However the HDSP system does
not use FireWire protocol, therefore can operate flawlessly even with a cable length of up to
50ft (15 m).
36003 Optical cable, TOSLINK, 0.5 m (1.6 ft)
36004 Optical cable, TOSLINK, 1 m (3.3 ft)
36006 Optical cable, TOSLINK, 2 m (6.6 ft)
36007 Optical cable, TOSLINK, 3 m (9.9 ft)
36008 Optical cable, TOSLINK, 5 m (16.4 ft)
36009 Optical cable, TOSLINK, 10 m (33 ft)
Standard lightpipe with TOSLINK connectors, RME approved quality.
37011 Power supply for HDSP CardBus card
Robust and light weigth switching power supply, 100V-240V AC, 12V 1.25 A DC.
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User's Guide HDSP System Multiface © RME
8. Warranty
Each individual Hammerfall DSP undergoes comprehensive quality control and a complete test
at RME before shipping. The usage of high grade components allow us to offer a full two year
warranty. We accept a copy of the sales receipt as valid warranty legitimation.
If you suspect that your product is faulty, please contact your local retailer. The warranty does
not cover damage caused by improper installation or maltreatment - replacement or repair in
such cases can only be carried out at the owner’s expense.
RME does not accept claims for damages of any kind, especially consequential damage. Liability is limited to the value of the Hammerfall DSP. The general terms of business drawn up by
Synthax Audio AG apply at all times.
9. Appendix
RME news, driver updates and further product information are available on our website:
http://www.rme-audio.com
If you prefer to read the information off-line, you can browse through a complete copy of the
RME website, found on the RME Driver CD (in the \rmeaudio.web directory).
Manufacturer:
IMM Elektronik GmbH, Leipziger Strasse 32, D-09648 Mittweida
Trademarks
All trademarks, registered or otherwise, are the property of their respective owners. RME,
DIGI96, SyncAlign, ZLM, SyncCheck, DIGICheck and Hammerfall are registered trademarks of
RME Intelligent Audio Solutions. TMS and TotalMix are trademarks of RME Intelligent Audio
Solutions. Alesis and ADAT are registered trademarks of Alesis Corp. ADAT optical is a trademark of Alesis Corp. Microsoft, Windows 2000 and Windows XP are registered trademarks or
trademarks of Microsoft Corp. Steinberg, Cubase and VST are registered trademarks of
Steinberg Media Technologies GmbH. ASIO is a trademark of Steinberg Media Technologies
GmbH.
Copyright Matthias Carstens, 8/2005. Version 1.6
Current driver version: W2k/XP: 2.94, Mac OS X: 1.6
Although the contents of this User’s Guide have been thoroughly checked for errors, RME can not guarantee that it is correct
throughout. RME does not accept responsibility for any misleading or incorrect information within this guide. Lending or
copying any part of the guide or the RME Driver CD, or any commercial exploitation of these media without express written
permission from RME Intelligent Audio Solutions is prohibited. RME reserves the right to change specifications at any time
without notice.
User's Guide HDSP System Multiface © RME
11
CE / FCC Compliance Statements
CE
This device has been tested and found to comply with the EN55022 class B and EN50082-1
norms for digital devices, according to the European Council directive on counterpart laws in
the member states relating to electromagnetic compatibility (EMVG).
FCC
This device has been tested and found to comply with the requirements listed in FCC Regulations, part 15 for Class ‘B’ digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not
result in harmful interference with other electronic devices.
This equipment generates radio frequencies and, if not installed and used according to the
instructions in the User’s Guide may cause interference harmful to the operation of other electronic devices.
Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by
turning the unit off and on again, please try to eliminate the problem by using one of the following measures:
• Relocate either this product or the device that is being affected by the interference
• Use power outlets on different branch circuits, or install AC line filters
• Contact your local retailer or any qualified radio and television engineer
FCC compliance statement: Tested to comply with FCC standards for home or office use.
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User's Guide
Multiface
Driver Installation and Operation - Windows
User's Guide HDSP System Multiface © RME
13
10. Driver and Firmware
10.1 Driver Installation
After the interface has been installed correctly, connected to the Multiface (see 5. Hardware
Installation), and the computer has been switched on, Windows will recognize the new hardware component and start its ‘Hardware Wizard’. Insert the RME Driver CD into your CD-ROM
drive, and follow further instructions which appear on your computer screen. The driver files are
located in the directory \HDSP_w2k on the RME Driver CD.
Windows will install the Hammerfall DSP System driver, and will register the card in the system
as a new audio device. After a reboot the Multiface is ready for use.
In case the warning messages 'Digital signature not found', 'Do not install driver', 'not certified
driver' or similar come up: Don't listen to Microsoft, listen to us and continue with the installation.
In case the Hardware Wizard does not show up automatically after installation of the card,
do not attempt to install the drivers manually! An installation of drivers for non-recognized
hardware will cause a blue screen when booting Windows!
10.2 Driver Update
RME's driver updates often include a new hdsp32.inf file. Also the revision number of the
hardware might change (after a flash update). To prevent Windows 2000/XP from using an old
hdsp32.inf, or to copy some of the old driver files, be sure NOT to let Windows search for the
driver! Instead tell Windows what to do.
Under >Control Panel /System /Device Manager /Sound, Video and Game Controllers /RME
Hammerfall DSP /Properties /Driver< you'll find the 'Update Driver' button. Select 'Install from
a list or specific location (advanced)', click 'Next', select 'Don't search I will choose the
driver to install', click 'Next', then 'Have Disk'. Now point to the driver update's directory.
10.3 Deinstalling the Drivers
A deinstallation of the HDSP's driver files is not necessary – and not supported by Windows
anyway. Thanks to full Plug & Play support, the driver files will not be loaded after the hardware
has been removed. If desired these files can then be deleted manually.
Unfortunately Windows Plug & Play methods do not cover the additional autorun entries of
TotalMix, the Settings dialog, and the registration of the ASIO driver. Those entries can be
removed from the registry through a software deinstallation request. This request can be found
(like all deinstallation entries) in Control Panel, Software. Click on the entry 'RME Hammerfall
DSP'.
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10.4 Firmware Update
The Flash Update Tool updates HDSP PCI cards or CardBus cards to the latest version. It requires an already installed driver.
Start the program hdsp_fut.exe. The Flash Update Tool displays the current revision of the
HDSP interface, and whether it needs an update or not. If so, then please manually select if a
PCI card (desktop computer) or a CardBus card (laptop) shall be flashed. Next simply press the
'Update' button. A progress bar will indicate when the flash process is finished. The bar moves
slowly first (program), then faster (verify).
If more than one interface card is installed, all cards can be flashed by changing to the next tab
and repeating the process.
After the update the PCI/CardBus cards need to be resettet. This is done by powering down
and shutting off the PC. A warm boot is not enough!
PCI card revision 1.8 or up (black PCB), CardBus with 6-pin FireWire connector
When the update fails (status: failure), the card's second BIOS will be used from the next cold
boot on (Secure BIOS Technology). Therefore the card stays fully functional. The flash process
should then be tried again on a different computer.
All other PCI cards, and CardBus with 15-pin flat connector
When the update fails (status: failure) the flash process should be repeated several times, until
no error message occurs anymore. If the failure message is displayed nonetheless, the interface will most propably no longer work when the computer is switched off and on again. The
interface then has to be re-programmed at the factory. We have invested a lot of work to prevent the system from getting in this state. If it happens despite our efforts, the best advice we
can give is to not switch off the computer! As long as it is not switched off the old programming
of the PCI/CardBus interface will stay active, and you can continue to work with the system
using the old drivers
Note: Because of the changed hardware revision, Windows 2000/XP will start the hardware
assistant and wants to install new drivers. Do NOT let Windows search for new drivers, but
follow the instructions given in chapter 10.2.
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11. Configuring the Multiface
11.1 Settings Dialog
Configuration of the HDSP system Multiface is done via its own settings dialog. The panel 'Settings' can be opened:
• by clicking on the hammer symbol in the Task Bar's system tray
The mixer of the Hammerfall DSP system (TotalMix) can be opened:
• by clicking on the mixer icon in the Task Bar's system tray
The hardware of the HDSP system offers a number of helpful, well thought-of practical functions and options which affect how the card operates - it can be configured to suit many different requirements. The following is available in the 'Settings' dialog:
• Input selection
• Level of analog I/Os
• Configuration of digital I/Os
• Synchronization behaviour
• State of input and output
Any changes made in the Settings
dialog are applied immediately confirmation (e.g. by clicking on OK
or exiting the dialog) is not required.
However, settings should not be
changed during playback or record if
it can be avoided, as this can cause
unwanted noises. Also, please note
that even in 'Stop' mode, several
programs keep the recording and
playback devices open, which means
that any new settings might not be
applied immediately.
The status displays at the bottom of
the dialog box give the user precise
information about the current status
of the system, and the status of all
digital signals.
SyncCheck indicates whether there is a valid signal (Lock, No Lock) for each input (Word
Clock, ADAT, SPDIF, ADAT Sync), or if there is a valid and synchronous signal (Sync). The
AutoSync Ref(erence) display shows the input and frequency of the current sync source.
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MME
Check Input verifies the current digital input signal against the settings in the record program.
When de-activated a recording will always be allowed, even with non-valid input signals. Check
Input is valid for MME only.
SyncAlign guarantees synchronous channels when using MME multitrack software. This option
should only be switched off in case the used software does not work correctly with SyncAlign
activated.
Buffer Size
The setting Buffer Size determines the latency between incoming and outgoing ASIO and GSIF
data, as well as affecting system stability (see chapter 13/14). Under Windows MME this setting
determines the DMA buffer size (see chapter 12.3).
SyncCheck
SyncCheck indicates whether there is
a valid signal (Lock, No Lock) for
each input (Word Clock, ADAT,
SPDIF, ADAT Sync), or if there is a
valid and synchronous signal (Sync).
The AutoSync Reference display
shows the input and frequency of the
current sync source.
Options
TMS activates the transmission of
Channel Status data and Track
Marker information of the SPDIF
input.
Disconnect interrupts the communication between I/O-box and PCI or
CardBus card. In case the Multiface
has been configured using the Settings dialog and TotalMix, Disconnect
allows to use it Stand-Alone (without
a connected computer), after a power
supply has been attached.
SPDIF In
Defines the input for the SPDIF signal. 'Coaxial' relates to the RCA socket, 'Optical' to the optical TOSLINK input.
SPDIF Out
The SPDIF output signal is constantly available at the phono plug. After selecting 'Optical' it is
also routed to the optical TOSLINK output. For further details about the settings ‘Professional’,
‘Emphasis’ and ‘Non-Audio’, please refer to chapter 26.2.
SPDIF Freq.
Displays the sample rate of the signal at the SPDIF input.
Time Code
Time Code from the input ADAT Sync.
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I/O Box State
This field displays the current state of the I/O-box.
Error: I/O-box not connected or missing power
Detected: The interface has found an I/O-box and tries to load the firmware
Connected: Communication between interface and I/O-box operates correctly
Disconnected: Communication between interface and I/O-box has been interrupted, I/O-
box continues operation
Word Clock Out
The word clock output signal usually equals the current sample rate. Selecting Single Speed
causes the output signal to always stay within the range of 32 kHz to 48 kHz. So at 96 kHz
sample rate, the output word clock is 48 kHz.
Clock Mode
The unit can be configured to use its internal clock source (Master), or the clock source predefined via Pref. Sync Ref (AutoSync).
Pref. Sync Ref.
Used to pre-select the desired clock source. If the selected source isn't available, the unit will
change to the next available one. The current clock source and sample rate is displayed in the
AutoSync Ref display.
The automatic clock selection checks and changes between the clock sources Word Clock,
ADAT, ADAT Sync and SPDIF.
System Clock
Shows the current clock state of the HDSP system. The system is either Master (using its own
clock) or Slave (see AutoSync Ref).
11.2 Clock Modes - Synchronisation
In the digital world, all devices are either the ‘Master’ (clock source) or a ‘Slave’ synchronized
to the master. Whenever several devices are linked within a system, there must always be a
single master clock. The Hammerfall DSP’s intelligent clock control is very user-friendly, being
able to switch between clock modes automatically. Selecting AutoSync will activate this mode.
In AutoSync mode, the system constantly scans all digital inputs for a valid signal. If this signal
corresponds with the current playback sample rate, the card switches from the internal quartz
(AutoSync Ref displays 'Master') to a clock generated from the input signal (AutoSync Ref displays 'Slave'). This allows on-the-fly recording, even during playback, without having to synchronize the card to the input signal first. It also allows immediate playback at any sample rate
without having to reconfigure the card.
AutoSync guarantees that normal record and record-while-play will always work correctly. In
certain cases however, e.g. when the inputs and outputs of a DAT machine are connected directly to the Hammerfall DSP, AutoSync may cause feedback in the digital carrier, so synchronization breaks down. To remedy this, switch the HDSP’s clock mode over to 'Master'.
Remember that a digital system can only have one master! If the HDSP’s clock mode is
set to 'Master', all other devices must be set to ‘Slave’.
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The Hammerfall DSP's ADAT optical input and the SPDIF input operate simultaneously. Because there is no input selector however, the HDSP has to be told which of the signals is the
sync reference (a digital device can only be clocked from a single source). This is why the system has been equipped with automatic clock source selection, which adopts the first available
input with a valid digital signal as the clock reference input. The input currently used as sync
reference is shown in the AutoSync Ref status field, together with its sample frequency.
Via Pref. Sync Ref (preferred synchronization reference) a preferred input can be defined. As
long as the card sees a valid signal there, this input will be designated as the sync source, otherwise the other inputs will be scanned in turn. If none of the inputs are receiving a valid signal,
the card automatically switches clock mode to ‘Master’.
To cope with some situations which may arise in studio practice, setting ‘Pref Sync Ref’ is essential. One example: An ADAT recorder is connected to the ADAT1 input (ADAT1 immediately becomes the sync source) and a CD player is connected to the SPDIF input. Try recording a few samples from the CD and you will be disappointed. Few CD players can be synchronized. The samples will inevitably be corrupted, because the signal from the CD player is
read with the (wrong) clock from the ADAT i.e. out of sync. In this case, 'Pref Sync Ref' should
be temporarily set to SPDIF.
If several digital devices are to be
used simultaneously in a system, they
not only have to operate with the same
sample frequency but also be synchronous with each other. This is why digital systems always need a single device defined as ‘master’, which sends
the same clock signal to all the other
(‘slave’) devices. RME’s exclusive
SyncCheck technology (first implemented in the Hammerfall) enables an
easy to use check and display of the
current clock status. The ‘SyncCheck’
field indicates whether no signal (‘No
Lock’), a valid signal (‘Lock’) or a valid
and synchronous signal (‘Sync’) is
present at each of the digital clock
source inputs. The ‘AutoSync Ref’
display shows the current sync source
and the measured frequency.
In practice, SyncCheck provides the
user with an easy way of checking
whether all digital devices connected
to the system are properly configured.
With SyncCheck, finally anyone can master this common source of error, previously one of the
most complex issues in the digital studio world.
Thanks to its AutoSync technique and lightning fast PLLs, the HDSP is not only capable of
handling standard frequencies, but also any sample rate between 28 and 103 kHz. Even the
word clock input, which most users will use in varispeed operation, allows any frequency between 28 kHz and 105 kHz.
At 88.2 or 96 kHz: If one of the ADAT inputs has been selected in ‘Pref Sync Ref’, the sample
frequency shown in the field SPDIF Freq. differs from the one shown in ‘AutoSync Ref’. The
card automatically switches to S/MUX mode here, because ADAT optical inputs and outputs
are only specified up to 48 kHz. Data from/to a single input/output is spread over two channels,
the internal frequency stays at 44.1 or 48 kHz. In such cases, the ADAT sample frequency is
only half the SPDIF frequency.
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12. Operation and Usage
12.1 Playback
The HDSP system can play back audio data only in supported modes (channels, PCM) and
formats (sample rate, bit resolution). Otherwise an error message appears (for example at 22
kHz and 8 bit).
In the audio application being used, HDSP must be selected as output device. This can often
be found in the Options, Preferences or Settings menus under Playback Device, Audio Devices,
Audio etc.
We strongly recommend switching off all system sounds (via >Control Panel /Sounds<). Also
HDSP should not be the Preferred Device for playback, as this could cause loss of synchronization and unwanted noises. If you feel you cannot do without system sounds, you should consider buying a cheap Blaster clone and select this as Preferred Device in >Control Panel
/Multimedia /Audio<.
The screenshot shows a
typical configuration dialog of a (stereo) wave
editor. After selecting a
device, audio data is sent
to an analog or digital
(ADAT / SPDIF) port,
depending on which has
been selected as playback
device.
Increasing the number
and/or size of audio buffers may prevent the audio
signal from breaking up,
but also increases latency
i.e. output is delayed. For
synchronized playback of
audio and MIDI (or similar), be sure to activate
the checkbox ‘Get position from audio driver’.
The HDSP system’s ADAT optical interface allows sample rates of up to 96 kHz using a standard ADAT recorder. Single-channel data at this frequency requires two ADAT channels,
achieved using the Sample Multiplexing technique. This reduces the number of available ADAT
channels from 8 to 4. Under Windows MME, channels are routed to ADAT devices in doublespeed mode as follows:
• Only stereo pairs (1+2) and (3+4) of the ADAT port are available
This kind of implementation allows a problem-free usage of the ADAT port in both Single and
Double Speed, as the routing doesn't change. However, the hardware spreads the data differently: Channel 1 is transmitted via channels 1 and 2, channel 2 via 3 and 4 etc.
Please refer to the diagram in chapter 18.2. Routing for record and playback is identical.
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12.2 DVD-Playback (AC-3/DTS) under MME
AC-3 / DTS
When using popular DVD software player like WinDVD and PowerDVD, their audio data stream
can be sent to any AC-3/DTS capable receiver, using the Hammerfall DSP's SPDIF output. For
this to work the SPDIF output wave device has to be selected in >Control Panel/ Sounds and
Multimedia/ Audio<. Also check 'use preferred device only'.
You will notice that the DVD software's audio properties now allow to use 'SPDIF Out', 'Use
SPDIF' or to 'activate SPDIF output'. When selecting these, the software will transfer the nondecoded digital multichannel data stream to the Hammerfall DSP.
This 'SPDIF' signal sounds like chopped noise at highest level. Therefore the Multiface automatically activates the non-audio bit within the digital data stream, to prevent most SPDIF receivers from accepting the signal, and to prevent any attached equipment from being damaged.
Multichannel
PowerDVD can also operate as software decoder, sending a DVD's multichannel data stream
directly to the analog outputs of the Multiface. Supported are all modes, from 2 to 8 channels,
at 16 bit resolution and 48 kHz sample rate. Playback via the ADAT output of the Multiface is
also supported.
For this to work an output wave device of the HDSP has to be selected in >Control Panel/
Sounds and Multimedia/ Audio<. Also check 'use preferred device only'. PowerDVD's audio
properties now lists several multichannel modes. If one of these is selected, PowerDVD sends
the decoded analog multichannel data to the HDSP.
The device selected as Preferred Playback Device defines the first playback channel. Choosing
ADAT 3/4 and 6-channel mode, playback will happen on channels 11 to 16. Choosing ADAT
5/6 and 6-channel mode, even the SPDIF output will be used for the last (highest) channels.
The available modes depend on the number of channels available above the chosen device! When selecting ADAT 7/8, the 6-channel mode will not be available.
The channel assignment using PowerDVD is:
1 (first chosen playback channel) - Left
2 - Right
3 - Center
4 - LFE (Low Frequency Effects)
5 - SR (Surround Right)
6 - SL (Surround Left)
Note 1: Setting the card to be used as system playback device is against common sense, as
professional cards are not specialized to play back system sounds, and shouldn't be disturbed
by system events. To prevent this, be sure to re-assign this setting after usage, or to disable
any system sounds (tab Sounds, scheme 'No audio').
Note 2: The DVD player will be synced backwards from the HDSP card. This means when using AutoSync and/or word clock, the playback speed and pitch follows the incoming clock signal.
Note 3: PowerDVD 5 no longer supports a starting channel other than channel 1. Use TotalMix
to send audio to the ADAT port if necessary.
Note 4: In WinDVD 5 and 6, a channel-separated 5.1 playback using the HDSP requires a
change in the registry. Start regedit, go to >HKEY_CURRENT_USER / Software / InterVideo /
DVD5 / AUDIOCHAN<, and set its value to 4 (hexadecimal). Additionally select 'Waveout' as
Audio Renderer in the Audio configuration dialog. Warning: Changes to the registry are
done at your own risk. Danger of complete data loss!
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12.3 Low Latency under MME (Buffer Size Adjustment)
Using Windows 95 or 98 the MME buffer size was nothing to worry about. Latencies below 46
ms were not possible. Meanwhile both computers and operating system have become much
more powerful, and since Windows ME/2000/XP latencies far lower can be used. SAWStudio
and Sonar allowed to use such low settings from the start. Sequoia was updated in version
5.91, WaveLab in version 3.04.
In the HDSP's Settings dialog the MME buffersize (in fact the DMA buffer size) is set with the
same buttons as the ASIO buffer size. Our test computers allow to use settings down to 64
samples without clicks. Please note that this setting only defines the buffer size of the hardware. The true and effective latency is configured within the MME application!
Attention: the DMA buffers must not be larger than the application's buffers. Playback will be
stuttering and audio will be distorted.
This case can happen unnoticed when using ASIO and MME at the same time (multi-client)
and setting ASIO to 186 ms, while the buffers in the MME application are still set for a lower
latency.
Example: when you set the Hammerfall to 512 you can't use 128 in any program. But setting
the buffer size to 128 allows to use 128 and all higher values within the software.
Please also note that this is a you're-welcome-to-try feature. We can't guarantee that you will
be able to use 3 or 6 ms with MME. Simply check out by yourself which lowest setting your
system and software allows. Some motherboards with insufficient PCI bandwidth (like older VIA
boards) suffer from crackling at settings below 512. Be sure to set the buffer size to 512 or
higher in such a case (or get a new motherboard).
12.4 Multi-client Operation
RME audio interfaces support multi-client operation. This means several programs can be used
at the same time. Also all formats, like ASIO, MME and GSIF can be used simultaneously. The
use of multi-client operation requires to follow two simple rules:
• Multi-client operation requires identical sample rates!
I.e. it is not possible to use one software with 44.1 kHz and the other with 48 kHz.
• Different software can not use the same channels at the same time.
If for example Cubase uses channels 1/2, this playback pair can't be used in Gigasampler/Studio (GSIF) nor under MME (WaveLab etc.) anymore. This is no limitation at all, because TotalMix allows any output routing, and with this a playback of multiple software on the
same hardware outputs. Note that the inputs can be used at the same time, as the driver sends
the data to all applications simultaneously.
ASIO-Multiclient
RME audio interfaces support ASIO multi-client operation. It is possible to use more than one
ASIO software at the same time. Again the sample rate has to be identical, and each software
has to use its own playback channels. Once again the same inputs can be used simultaneously.
RME's sophisticated tool DIGICheck is an exception to this rule. It operates like an ASIO host,
using a special technique to access playback channels already occupied. Therefore DIGICheck
is able to analyse and display playback data from any software, no matter which format the
software uses.
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12.5 Digital Recording
Unlike analog soundcards which produce empty wave files (or noise) when no input signal is
present, digital I/O cards always need a valid input signal to start recording.
To take this into account, RME has included three unique features in the Hammerfall DSP system: a comprehensive I/O signal status display (showing sample frequency, lock and sync
status) in the Settings dialog, status LEDs for each input, and the protective Check Input function.
If a 48 kHz signal is fed to the input and the application is set to 44.1 kHz, Check Input stops
the system from recording. This prevents faulty takes, which often go unnoticed until later on in
the production. Such tracks appear to have the wrong playback rate - the audio quality as such
is not affected.
The sample frequency shown in the Settings dialog (see chapter 11, screenshot Settings) is
useful as a quick display of the current configuration (the box itself and all connected external
equipment). If no sample frequency is recognized, it will read ‘No Lock’.
This way, configuring any suitable audio application for digital recording is simple. After selecting the required input, Hammerfall DSP displays the current sample frequency. This parameter
can then be changed in the application’s audio attributes (or similar) dialog.
The screenshot to the right shows a typical dialog used for changing basic parameters such as
sample frequency and resolution in an audio
application.
Any bit resolution can be selected, providing it is
supported by both the audio hardware and the
software. Even if the input signal is 24 bit, the
application can still be set to record at 16-bit
resolution. The lower 8 bits (and therefore any
signals about 96dB below maximum level) are
lost entirely. On the other hand, there is nothing
to gain from recording a 16-bit signal at 24-bit
resolution - this would only waste precious space
on the hard disk.
It often makes sense to monitor the input signal or send it directly to the output. This can be
done at zero latency using TotalMix (see chapter 28).
Currently two solutions exist which enable an automated control of real-time monitoring. ZLM
(Zero Latency Monitoring) allows monitoring in Punch I/O mode - with this the system behaves
like a tape machine. This method has been implemented in all versions of Samplitude (by
Magix), and can be activated using the global track option 'Hardware monitoring during Punch'.
As ZLM is limited to MME, this mode is no longer supported since TotalMix version 2.90.
The second solution is Steinberg’s ASIO protocol with our ASIO 2.0 drivers and all ASIO 2.0
compatible programs (even Samplitude…). When 'ASIO Direct Monitoring' has been switched
on, the input signal is routed in real-time to the output whenever a recording is started.
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12.6 Analog Recording
For recordings via the analog inputs the corresponding record device has to be chosen (HDSP
Analog (x+x)). Apart from the three reference levels, the Multiface has no means to change the
input level. This would make no sense for the digital inputs, but also for the analog inputs one
can do without it. It doesn't matter if the Multiface is operated at a mixing desk or a multichannel mic preamp, in either case the level can be controlled directly at the source to match the
Multiface's sensitivity perfectly.
The input sensitivity of the analog inputs can be changed through internal jumpers to meet the
most often used studio levels, see chapter 35.
13. Operation under ASIO 2.0
13.1 General
Start the ASIO software and select ASIO Hammerfall DSP as the audio I/O device. The 'ASIO
system control' button opens the HDSP's Settings dialog (see chapter 10 / 20, Configuration).
Hammerfall DSP supports
ASIO Direct Monitoring
(ADM). Please note that
currently Nuendo, Cubase
and Logic either do not
support ADM completely
or error-free.
Using emulated MIDI
drivers often causes a drift
and delay between audio
and MIDI. You should use
non-emulated (MME) MIDI
ports in such a case.
At a sample rate of 88.2 or
96 kHz, the ADAT optical
input and output operate
in S/MUX mode, so the
number of available channels is reduced from 8 to 4.
13.2 Known Problems
If a computer does not provide sufficient CPU-power and/or sufficient PCI-bus transfer rates,
then drop outs, crackling and noise will appear. We recommend to deactivate all PlugIns to
verify that these are not the reason for such effects.
Additional hard disk controllers, both on-board and PCI based, aften violate the PCI specs. To
achieve the highest throughput they hog the PCI bus, even in their default setting. Thus when
working with low latencies heavy drop outs (clicks) are heard. Try to solve this problem by
changing the default setting of the controller (for example by reducing the 'PCI Bus Utilization').
Another common source of trouble is incorrect synchronization. ASIO does not support asynchronous operation, which means that the input and output signals not only have to use the
same sample frequency, but also have to be in sync. All devices connected to the Hammerfall
DSP must be properly configured for Full Duplex operation. As long as SyncCheck (in the Settings dialog) only displays Lock instead of Sync, the devices have not been set up properly!
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When using more than one HDSP system, all units have to be in sync, see chapter 15. Else a
periodicly repeated noise will be heared.
13.3 Synchronization
To achieve sample-accuracy between the
ADAT recorder and Hammerfall DSP
while running Cubase, connect the ADAT
sync output with the 9-pin D-type sync
input of the HDSP. The ‘Time Code’ field
in the Settings dialogue should now show
the same position as the ADAT recorder.
Double-clicking on the Sync button in
Cubase’s transport panel will open the
‘Synchronization’ dialog. Select ASIO 2.0
as the timecode base (under Sync
Source), confirm the dialog with ‘OK’,
then activate Sync mode by (single) clicking on the Sync button.
If synchronization is not working i.e. Cubase does not respond when the ADAT is set to ‘Play’,
please try the following:
• Check the cables
• Switch Sync off and on again (in Cubase’s transport panel)
• Select ‘Reset Devices’ from the Options menu.
• Switch on the ADAT recorder(s) before starting Cubase
• Use the BRC as Master and send its word clock to all other devices
• Use the Clock Mode ADAT Sync
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