MARIAN SERAPH M2 User manual

SERAPH M2
SERAPH M2 MWX
User Manual

The SERAPH M2 conforms the following standards: EN 55022: 1998 + A1: 2000
+ A2: 2003; class A; EN 55024: 1998 + A1: 2000 + A2: 2003; class A; n order
for an installation of this product maintain compliance with the limits of a class
A device, shielded audio cables must be used, not longer than 50 cm. Attention:
This is a device of the class A and can cause interference to radio or television
reception within the residential area. The user is encouraged to try to correct the
interference by suitable measures.
c
15th July 2019, v2.0 MARIAN
Hardware Design by MARIAN
All rights reserved. No part of this User’s Guide may be reproduced or transmitted in any form or by any means,
electronically or mechanically, including photocopy, translation, recording, or any information storage and retrieval system,
without permission in writing from MARIAN. All trademarks are the property of the respective owners.
MARIAN is not liable for any damage to the software, hardware and data and costs resulting from it, which are caused by
improper handling or installation of the hardware.
Technical changes are reserved.

Contents
1 Welcome 1
2 Before you start ... 2
2.1 Features......................................... 2
2.2 Installation ....................................... 2
2.2.1 ScopeofSupply ................................ 2
2.2.2 Systemrequirements.............................. 2
2.2.3 Hardware and software installation . . . . . . . . . . . . . . . . . . . . . . 2
2.2.4 Driver and firmware updates . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Connections....................................... 4
3 Let’s start: Basics 6
3.1 Introduction....................................... 6
3.2 The SERAPH M2 in connection with digital devices . . . . . . . . . . . . . . . . 6
3.2.1 Background................................... 6
3.2.2 Whatisaclock? ................................ 6
3.2.3 The rules of the digital audio world . . . . . . . . . . . . . . . . . . . . . 7
4 Let’s start: Play 8
4.1 Introduction....................................... 8
4.2 Using a media playback program . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3 Using an ASIO music software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Let’s start: Recording 10
5.1 Introduction....................................... 10
5.2 Using a media playback program . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Using an ASIO (multi-channel) music software . . . . . . . . . . . . . . . . . . . 10
6 The SERAPH M2 in Detail: System settings 12
6.1 Introduction....................................... 12
6.2 ClockStatusPanel................................... 12
6.3 Settings ......................................... 13
6.4 ASIODeviceSetup................................... 18
7 Appendix 19
7.1 ServiceandSupport .................................. 19
7.2 Glossary......................................... 20
7.3 SpecialNotes ...................................... 22
7.3.1 Clock settings when using ASIO . . . . . . . . . . . . . . . . . . . . . . . 22
7.3.2 Samplerate on record/playback . . . . . . . . . . . . . . . . . . . . . . . . 22
7.3.3 Different samplerates on record/playback via ASIO . . . . . . . . . . . . . 22
7.3.4 Simultaneous playback on one device via ASIO . . . . . . . . . . . . . . . 22
7.3.5 Software devices and physical ports . . . . . . . . . . . . . . . . . . . . . . 23
8 Technical Facts 24

1 Welcome
1 Welcome
The MARIAN team proudly presents to you the SERAPH M2, thanking you for your confidence.
Everywhere you look in the professional audio industry: if it comes to reliably sending/receiving
extremely many signals with just one single cable, MADI is THE solution. Up to 64 channels per
cable, integrated clock synchronization, long-range electrical or optical transmission – all these
advantages and more you can now call your own with the MARIAN SERAPH M2. In this sound
system you can see newest technologies merging with long proven experience and development
skills into a powerful DAW (Digital Audio Workstation). Based on a super-fast PCIe interface, a
single SERAPH M2 sends and receives up to 256 channels either via 4 electrical BNC or 2 optical
SC connectors. And if this is not yet enough: the unique MARIAN SyncBus allows to internally
synchronize up to 4 SERPAH M2 in one computer for a true abundance of signals. . . And now
we hope you’ll enjoy trying out and getting to know your SERAPH M2. We are confident that
this sound system will be a partner in the realization of all your music projects for years to come.
Your MARIAN Team
1

2 Before you start ...
2 Before you start ...
2.1 Features
Your SERAPH M2 is equipped with many useful functions. Here is a list of the features and
options:
3PCIe card with 4 BNC in/outputs (standard version) or 2 SC in/outputs (M2-F Version)
3Sample rates up to 96 kHz
3S/MUX compatible
3MIDI I/O via MADI
3ASIO 32bit Float Hardware Support
3MARIAN SyncBus compatible
3Synchronization as clock master (Internal clock to the MADI inputs, SyncBus or the
Wordclock output )
3Synchronization as clock slave (processing an external clock at the MADI 1, MADI 2,
Wordclock or SyncBus )
3Fail-safe firmware update technology (automatic recovery of the firmware in case of errors)
3Advanced multi-client drivers for WindowsTM2000/2003 Server and WindowsTM7
3Driver support: MME, ASIO 2.0, DirectSound, WDM Audio, DirectSound
2.2 Installation
2.2.1 Scope of Supply
After carefully opening the package of the SERAPH M2, please be sure to check if the following
components are to be found complete and undamaged:
31 x SERAPH M2 PCIe card
31 x MIDI/WordClock Externder with connector cable (MWX version only)
31 x cable for MIDI Input/output (MWX version only)
31 x CD-ROM with driver software and manual
3Quick Start
2.2.2 System requirements
For the successful and correct operation of the SERAPH M2 your computer needs to meet the
following minimum requirements:
3x86, x86-64 compatible Intel or AMD Processor; Operating System WindowsTM2000/2003
Server and WindowsTM7 ; DirectX 9c
31 free expansion slot (one free PCIe slot)
3A free slot for the MIDI/WordClock Extender (MWX version only)
Please note that the system requirements may be higher depending on the operating system and
audio application used.
2.2.3 Hardware and software installation
In the brochure labeled ”Quick Start” you will find all the installation steps as a graphical guide.
If you still have any questions or in case that problems appear during the installation, please
contact our support service. You will find all the different ways to contact the support services
in the appendix of this manual.
2

2 Before you start ...
2.2.4 Driver and firmware updates
In some cases, there is a driver update available for the SERAPH M2 in the download section
of the MARIAN homepage. It may include:
3Functional improvements of the driver and/or the user interface (s)
3Adjustments to new operating systems and/or their new components (updates and service
packs)
3Compatibility upgrades to audio applications and third-party applications
When performing a driver update please follow the instructions provided in the ’readme.htm’
file, which is part of the packed folder of the new driver files1.
Important: In the course of a driver update it may become necessary for the firmware of
the SERAPH M2 to be updated. Whether a firmware update is necessary or not, can only
be determined after an installation/update was performed. The firmware upgrade will then
be executed automatically. The Fail-safe firmware update technology MARIAN protects the
SERAPH M2 against errors, which could occur due to the interruption of the update process,
such as a power failure. If normally this would result in a total malfunction of a system, the
fail-safe technology ensures that at the next initialisation of the SERAPH M2 a core firmware
is loaded. Thus the sound card may again be detected correctly by a WindowsTMsystem.
1Even if the WindowsTM Explorer is capable of displaying compressed files – for installing the driver (update)
a full decompression is required!
3

2 Before you start ...
2.3 Connections
SERAPH M2
MWX2 (optional)
4

2 Before you start ...
TDM SyncBus
If other MARIAN sound systems with TDM SyncBus option are installed they may be connected
using a TDM SyncBus cable2. Other MARIAN sound systems with SyncBus option only, may
be connected via an adapter cable. Both cables can be ordered in the MARIAN webshop.
MWX2
Use the supplied ribbon cable to connect the optional MWX.
MIDI Sub-D
Using the included MIDI breakout cable 2 MIDI Inputs and 2 MIDI Outputs may be used.
WordClock
This connector is used to integrate the SERAPH M2 into a WordClock/SuperClock network. If
the SERAPH M2 is the last card in a chain of devices, then the WordClock termination has to
be activated in the settings of the SERAPH M2 manager.
MADI
Connect MADI compatible digital devices here.
2Audio signals may only be exchanged between MARIAN TDM SyncBus compatible systems. Clock- and
start/stop synchronization is possible between all MARIAN systems.
5

3 Let’s start: Basics
3 Let’s start: Basics
In this chapter you will learn
3The fundamentals of Digital Signal Processing,
3To avoid problems/errors when connecting digital devices
3.1 Introduction
The SERAPH M2 sound system is a purely digital system. For connecting other devices this
brings along some specialties. Basic rules (an output is connected to an input, and vice versa)
certainly do need not be explained here again. For digital audio signals, however, the clock plays
an important role. Following you will thus find some background notes and an example setup
for the correct wiring to external equipment3.
3.2 The SERAPH M2 in connection with digital
devices
3.2.1 Background
Between analog and digital audio signals, there is an essential difference: Analog audio signals
are continuous. Thus, for each possible moment, these signals can be measured, and at each
point of time it is possible to receive a specific measurement value. Digital audio signals however
consist of many individual values (samples), followed by each other with intervals of a specific
rate (sample rate). In this case it is not possible to obtain a measurement at any time, but only
as often as given by the sampling rate. Example: If the samplerate provides a value only every
second, it is not going to be possible to measure in between, e.g. at the time of half a second.
3.2.2 What is a clock?
There has to be something that governs at which moment a digital value may be send or received,
because this is essential for the accurate communication of digital devices. Precisely this is the
task of the clock. It is a pulse or rate generator. The rate, that the clock has, defines the
samplerate.
Let’s illustrate this with an example: Imagine an orchestra with a conductor in front. The
maestro raises and lowers the baton - he indicates the beat. The musicians now play fast or
slow depending on his guide4.
Thus the conductor is the clock and the speed with which the orchestra plays, that is the
samplerate.
What happens when an orchestra plays without the conductor? – Total Chaos! Every musician
could, depending on the personal mood play at a different speed - depending on musical stile
the result would sound more or less useful ...
The same problem exists for audio devices if they are connected without a proper configuration
of the digital clock. Just like in the orchestra situation it must be defined who is the Maestro
(the master) and who are the performers (the slaves). Thus we can conclude the following rules:
3In the chapter ’The SERAPH M2 in detail III: system settings’ you will find the clock setting of the manager
of the SERAPH M2 explained in detail. Additionally we recommend a look in the appendix for in depth
understanding
4All conductors amongst the readers may excuse this crude simplification in favor for the appealing simplicity
of the example.
6

3 Let’s start: Basics
3.2.3 The rules of the digital audio world
If two or more digital audio devices are connected, the following three simple rules apply:
3All devices must be synchronized with each other. (By the clock!)
3There can be only one! And only one device that sets the clock (the master). All other
devices must synchronize to the clock of the master and are therefore ’slaves’ 5
3Digital audio connections already include a clock signal (S/PDIF, ADAT, MADI or
AES/EBU). Alternatively, the synchronization may be accomplished by a WordClock or
super clock network. Within a compound of various digital audio devices though, the clock
must be the same at every point of the network.
5The only exceptions are devices with activated samplerate converters. They may exchange signals
independently of the clock of other devices. (as the SERAPH M2)
7

4 Let’s start: Play
4 Let’s start: Play
In this chapter you will learn how to
3Playback a signal with the SERAPH M2
4.1 Introduction
In a recording studio there are a lot of cables going from the tape machine to the console in
order to play back previously recorded signals. In the same way you can think of your audio
software (the sequencer, etc.) being connected by many (virtual) wires to the SERAPH M2.
With each of these cables, in WindowsTMoperating systems called ’device’, two audio signals
are transported. In total there are 646devices available, which transport each two signals to
the SERAPH M2 using a specific driver interface. The ’driver interface’ is like the type of audio
cable used for the transmission of the signals. For media players WindowsTMDirect Sound is
the most often used interface, while multi-channel music programs (sequencer etc.) make use
of the ASIO interface. The following is an explanation how to use each for playback with the
SERAPH M2.
4.2 Using a media playback program7
WindowsTM10
1. Within Windows, select <Start > < Settings > < System >
2. In the tab <Sound >for ’Sound Playback - Default device’ select ’SERAPH M2 1-2’
WindowsTM7
1. Within WindowsTMselect <Start > < Control Panel > < Hardware and Sound > < Sound >
2. In the tab <Playback >select the device ’DAW Out 1-2’
3. In the lower part of the window activate ’Set Default’
4.3 Using an ASIO (multi-channel) music software8
1. Start the ASIO audio application
2. Open the audio settings of the software
3. Select the ’ASIO SERAPH M2’ driver
4. Near the selection for the ASIO driver the ASIO application often offers a button named
’configuration’ or ’Settings’. Click it to open the ASIO Device Setup.
6In the appendix you can find a table that will show you which software device corresponds to which MADI
Port depending on samplerate and transfer mode.
7Preliminary note: If an ASIO audio application using the SERAPH M2 is already active, you must first
ensure, that devices are available for usage. It may be, that the ASIO application already uses all available
devices and that thus the playback via a media program is not possible. Deactivate all devices in the ASIO
application, which you wish to use for the media playback. A step-by-step procedure of how to do this you will
find in the following section ’Using and ASIO music software’. ASIO applications are always using the devices of
the SERAPH M2 exclusively.
8Preliminary note: If an ASIO audio application or media playback is already using devices of the SERAPH M2,
they are not available any longer and it may thus be, that when starting an ASIO application an error message
will occur. It will state, that the ’ASIO SERAPH M2 driver could not be started’ or similar. ASIO applications
are always using the devices of the SERAPH M2 exclusively.
8

4 Let’s start: Play
5. By default all devices of the SERAPH M2 are activated in the ’ASIO Device Setup’ and
can be used by the software. However you may also disable devices here, in order to use
them in a different audio application.
6. For certain audio applications it is necessary to assign the devices to ’busses’ or similar
in order to actually playback signals using these devices. For questions on this, please
consult the manual of the application.
9

5 Let’s start: Recording
5 Let’s start: Recording
In this chapter you will learn how to
3Record a signal with the SERAPH M2
5.1 Introduction
In a recording studio there are a lot of cables going from the console to the tape machine
in order to play back previously recorded signals. In the same way you can think of the
SERAPH M2 being connected by many (virtual) wires to the audio software (the sequencer,
etc.). With each of these cables, in WindowsTMoperating systems called ’device’, two audio
signals are transported. In total there are 649devices available, which transport each two signals
to the application using a specific driver interface. The ’driver interface’ is like the type of audio
cable used for the transmission of the signals. For media players WindowsTMDirectSound is
the most often used interface, while multi-channel music programs (sequencer etc.) make use
of the ASIO interface. The following is an explanation how to use each, for recording with the
SERAPH M2.
5.2 Using a media playback program10
WindowsTM10
1. Within Windows, select <Start > < Settings > < System >
2. In the tab <Sound >for ’Sound Recording - Default device’ select ’SERAPH M2 1-2’
WindowsTMVista/7
1. Within WindowsTMselect <Start > < Control Panel > < Hardware and Sound > < Sound >
2. In the tab <Recording >select the device ’DAW In 1-2’
3. In the lower part of the window activate ’Set Default’
5.3 Using an ASIO (multi-channel) music software11
1. Start the ASIO audio application
2. Open the audio settings of the software
3. Select the ’ASIO SERAPH M2’ driver
4. Near the selection for the ASIO driver the ASIO application often offers a button named
’configuration’ or ’Settings’. Click it to open the ASIO Device Setup.
9In the appendix you can find a table that will show you which software device corresponds to which MADI
Port depending on samplerate and transfer mode.
10Preliminary note: If an ASIO audio application using the SERAPH M2 is already active, you must first
ensure, that devices are available for usage. It may be, that the ASIO application already uses all available
devices and that thus the playback via a media program is not possible. Deactivate all devices in the ASIO
application, which you wish to use for the media playback. A step-by-step procedure of how to do this you will
find in the following section ’Using and ASIO music software’. ASIO applications are always using the devices of
the SERAPH M2 exclusively.
11Preliminary note: If an ASIO audio application or media playback is already using devices of the SERAPH M2,
they are not available any longer and it may thus be that when starting an ASIO application an error message
will occur. It will state, that the ’ASIO SERAPH M2 driver could not be started’ or similar. ASIO applications
are always using the devices of the SERAPH M2 exclusively.
10

5 Let’s start: Recording
5. By default all devices of the SERAPH M2 are activated in the ’ASIO Device Setup’ and
can be used by the software. However you may also disable devices here, in order to use
them in a different audio application.
6. For certain audio applications it is necessary to assign the devices to ’busses’ or similar
in order to actually playback signals using these devices. For questions on this, please
consult the manual of the application.
11

6 The SERAPH M2 in Detail: System settings
6 The SERAPH M2 in Detail: System settings
In this chapter you will get to know:
3the function and meaning of all system settings
3how to do specific modifications to the ASIO driver
6.1 Introduction
Besides the usage as explained in the examples of this manual, there are of course other
possibilities to make the SERAPH M2 functionality fit to the specific needs of the daily work
in the studio. The following chapter explains all system settings of the SERAPH M2 providing
example configurations and notes on their meaning.
On the WindowsTMtask bar, you can find the symbol for the SERAPH M2 manager. It is
opened with a single click allowing to call up ”SERAPH M2” and then ’Clock Status’ or directly
’Settings’.
If several SERAPH M2 are installed, all the entries will appear in the corresponding amount,
numbered with ’1: SERAPH M2’, ’2:SERAPH M2’ and so on.
6.2 Clock Status Panel
General
The SERAPH M2 clock status panel offers fast information about samplerates, samplerate
converters and clock sources of every installed SERAPH M2. In the head of the window the
clock status panel for each installed SERAPH M2 can be chosen from the selection menu.
Via the lock-symbol in the upper right of the window, coverage by other windows may be
inhibited. This way the clock status panel will always be visible in the foreground.
Clock Status and samplerate
In the first line of the panel, you can read which samplerate is present on each digital input
(AES/EBU 1 to 8, WordClock or SyncBus) or which samplerate is set up for the internal clock.
The green LED left of it shows, if the clock of this source was detected correctly. In this case
the samplerate in kHz will displayed. If no clock could be retrieved, the red LED will light up.
Additionally it will read ’error’. If in the settings of the SERAPH M2, this connector was chosen
as clock source, this section of the table will be highlighted in red. The connector, whose clock
is actually used, will be highlighted in white. If the SERAPH M2 is configured to be SyncBus
master, ’MASTER’ will indicate this in the column ’SyncBus’. For the MADI inputs you can
12

6 The SERAPH M2 in Detail: System settings
see the format of the MADI data stream. That means, you can see how many channels are
included and if it is based on a 48k or 96k frame12. In order to use the channels of the MADI
signal, you must choose the appropriate configuration in <Settings > < MADI >. The second
row of the MADI inputs signals, if the clock of the input is identical to the clock currently used.
In this case the green LED as well as ’sync’ will appear. If the clock of the MADI input differs
from the current clock, ’error’ and the red LED will appear.
6.3 Settings
General and Sync
Internal Clock In this section the operation limits of the SERAPH M2 may be defined using
the ’min’ and ’max’ entry fields.
If no application is using the SERAPH M2, you may define with which samplerate the sound
system is supposed to work in the field ’This samplerate’.
By selecting ’the last used’, the SERAPH M2 will keep the samplerate that was used last for
the next recording or playback via an audio application
MME/DirectSound Samplerate Conflicts Activating this option the driver software will
allow recordings and playbacks with deviating samplerates. Consequently an audio application
will not display a warning. Instead, if you deactivate this option, an audio application will
report a message, which in turn can cause the malfunction of some poorly programmed
audio application (and this is the reason we introduced this option, because we believe
SERAPH M2 users know how to handle clock and samplerate and prefer not having to deal
with such audio applications).
What is behind this? When recording or playing back audio with MME or DirectSound,
WindowsTMsystems will always use the samplerate defined in the properties of the audio device,
setup in the windows control panel - Even if the application requests a different samplerate.
In such case a resampling will take place. The driver software is unable to set the samplerate
requested by Windows in these situations:
1. The SERAPH M2 is synchronized by an external clock whose samplerate differs from the
requested samplerate.
2. The SERAPH M2 is already used by other applications with a different samplerate.
12In the appendix you can find a table that will show you which software device corresponds to which MADI
Port depending on samplerate and transfer mode.
13

6 The SERAPH M2 in Detail: System settings
Please keep in mind that it is thereby potentially possible to cause erroneous playback and
recording, when the activating the above option.
Synchronization
Working with digital audio signals, a digital clock is always required. The following settings
define, which source is to be used for retrieving the clock for the SERAPH M2 13.
The SERAPH M2 may be operated in three clock-modes alternatively.
The SERAPH M2 as clock-master If ’internal clock’ is active, the SERAPH M2 generates
the clock itself. Other devices may receive this clock via the MADI inputs, SyncBus or the
Wordclock output .
The SERAPH M2 as clock-slave If ’SyncBus clock’ is selected the clock on the connector
of the SyncBus will be used14. Equally, the SERAPH M2 can be operated in sync to clock
present on the MADI inputs or the Wordclock input .
The SERAPH M2 as SyncBus Master If you own 2 or more MARIAN PCI(e) sound
systems and installed and connected them with a SyncBus cable, you may define via the option
’card is SyncBus master’ which system supplies the digital clock for the compound. For the
SyncBus master card, any clock-source may be chosen.
All other MARIAN PCI sound systems will run synchronously to the master card, if their clock
source is set to be ’SyncBus’15.
WordClock input If the SERAPH M2 is the last link in a WordClock chain, the termination
of its WordClock input may be activated here.
13Attention: If no clock is available or a wrong clock setup was done, playback errors or malfunction of the
system may occur. Please also note the hints in the appendix about the special aspects of the clock.
14The option ’Card is SyncBus Master’ must not be active in this case!
15If a sound system runs in sync to the SyncBus clock can easily be checked with the status panel: The column
’SyncBus’ has to be white. The clock master of the compound is recognizable by the ’MASTER’ in the status
panel.
14

6 The SERAPH M2 in Detail: System settings
Performance
PCIe Performance For best results, we recommend the ”compatible” option, if the PCIe
slot used is connected with the CPU directly. (e.g. 16x slots or small mainboards with just one
or two PCIe slots) We recommend the ”boost” option for all other, standard cases, where the
PCIe slot is connected with a PCIe host controller.
DMA Buffer Size Via the upper slider you can adjust the minimal latency of the
SERAPH M2. Here, the size of the buffer, shown in samples, is changed. Operating the
soundcard with e.g. 44.1 kHz, 88 samples will result in a latency of around 2 ms. For 88,2 kHz,
this number of samples would mean a latency of 1 ms. The chart ’resulting latency’ shows these
connections for some important standard samplerates.
By activating ’Play test tone at SERAPH M2 1-2’ a sine tone is played back at this device.
Monitor this signal and adjust the value for the DMA buffer to be as small as possible, but
without receiving distortions when playing back the sine wave.
MADI
Output 1 / Output 2 A MADI channel may be operated in 2 modes. Changing between 56
channel- and 64 channel mode may be done for each MADI output separately in this section.
15

6 The SERAPH M2 in Detail: System settings
The number of audio channels will be halved automatically to 28 or 32 channels depending on
the samplerate16.
For a compatibility with older MADI devices it may be defined, if the transmission has to
be done in 48k frame format. Set the option ”48k Frame S/MUX 88.2/96 kHz” if device are
connected, that require the 48k frame format.
16In the appendix you can find a table that will show you which software device corresponds to which MADI
Port depending on samplerate and transfer mode.
16

6 The SERAPH M2 in Detail: System settings
WDM
This settings window allows for changes that apply only to the WDM driver part of the
SERAPH M2. ASIO and other driver interfaces remain unaffected.
Sample Format Usually, the samplerate and bit depth of an audio device (e.g.
SERAPH M2 1-2; SERAPH M2 3-4 and so forth) are defined in the windows control panel,
for each device separately. Given, that the SERAPH M2 offers 32 devices (16 play and 16
record), changing all of them to a specific format may take a while. Thus, we have introduced
a quick and easy way to change the format for ALL devices of the SERAPH M2.
WDM Audio Multichannel The SERAPH M2 offers one multichannel audio device, that
can be used with multichannel audio/video applications. This option defines, which mono-audio
devices are included in this multichannel device. Example: Selecting channels 1 to 8, will create
a multichannel device with 8 channels. Activating a multichannel audio device, will make the
included mono audio devices unavailable for use as stereo device.
WDM Audio Stereo This option allows to limit the amount of stereo audio devices visible
to windows and all WDM compatible audio applications. This is useful to enhance the overview
in an application, if you only work with a couple of all of the 16 available stereo devices.
Device Preview In order to keep an overview of the current configuration of all devices,
whether included in a multichannel or stereo device, you can see a preview of all of them, the
same way they will appear in the windows control panel or any WDM compatible application.
Firmware
This section you may ignore. Also it is not necessary to manually perform firmware updates,
since this is done automatically along with a driver update.
Note: This section may become relevant, if, after contacting the MARIAN Support Service, it
is advised to perform a manual firmware update – e.g. for diagnostic purposes.
17