Wohler iVAM1-12G User manual

iVAM1-12G
1RU Multi-Channel Audio Video 12G Monitor
User Guide
Part Number 821835, Revision C

iVAM1-12G
Page 2
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Dante and Brooklyn are registered trademarks of Audinate Pty Ltd.
Ravenna is a registered trademark of ALC NetworX GmbH.
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Last Update
August 16, 2022

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TABLE O CONTENTS
Table of Contents
User Guide ........................................................................................ 1
TABL OF CONT NTS .......................................................................... 3
Table of Contents ........................................................................................... 3
CHAPT R 1: Installation....................................................................... 7
Introduction .................................................................................................. 7
Overview ............................................................................................ 7
Safety .......................................................................................................... 7
Instructions ......................................................................................... 7
Safety Symbols.................................................................................... 8
Mounting............................................................................................. 8
Heat Dissipation................................................................................... 8
Sympathetic Vibration........................................................................... 9
Mechanical Bracing ............................................................................... 9
lectrical Interference ........................................................................... 9
Power ................................................................................................. 9
Compliance ................................................................................................... 9
FCC.................................................................................................... 9
IC S-003 .......................................................................................... 10
CHAPT R 2: Local Operation............................................................... 11
Operation.................................................................................................... 11
Startup....................................................................................................... 11
Front Panel.................................................................................................. 11
Rear Panel................................................................................................... 13
SFP-2022-6 / SFP-2110 Address Setup............................................................ 17
Channel Meters and Touch Operations............................................................. 18
Video Screen ............................................................................................... 20
Dolby Zoom Screen ...................................................................................... 21
Menu / Option Touchscreen ........................................................................... 22
Main Menu ........................................................................................ 23
Loudness Menu .................................................................................. 23
Loudness Meter.................................................................................. 23
Loudness Settings .............................................................................. 25
Source Select .................................................................................... 27
Presets ............................................................................................. 29
All Presets ......................................................................................... 29
Preset Favorites ................................................................................. 31
Unit Settings ..................................................................................... 32
Speaker Options................................................................................. 33
Meter Scales...................................................................................... 34
Unit Configuration .............................................................................. 36
Phase Configuration............................................................................ 37
HDMI Settings ................................................................................... 38

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Analog Configuration .......................................................................... 39
System Options Menu ......................................................................... 40
Network Settings................................................................................ 40
System Reboot .................................................................................. 42
System Update .................................................................................. 43
Factory Reset .................................................................................... 44
System Information............................................................................ 45
CHAPT R 3: Technical Info ............................................................... 46
CHAPT R 4: The iVAM1-12G Web GUI.................................................. 51
Web Browser / Control Device........................................................................ 51
First Time IP Assignments ............................................................................. 51
Peer-to-Peer Connection...................................................................... 51
Network Connection............................................................................ 52
Network Setup............................................................................................. 53
Dashboard .................................................................................................. 54
Audio Meters ............................................................................................... 58
System Preferences...................................................................................... 59
System Audio Clock Reference ............................................................. 59
Loudness Configuration Tab ................................................................. 60
Phase Indicator Configuration Tab......................................................... 61
Preset Management...................................................................................... 62
Dolby Presets .............................................................................................. 67
Output Routing ............................................................................................ 68
Destination Outputs............................................................................ 69
Source Inputs .................................................................................... 69
Output Options .................................................................................. 70
Typical Questions Regarding Output Routing .................................................... 70
What signal outputs can be controlled using the Output Routing feature? ... 70
How do the outputs behave if I do not purchase OPT-OUTPUT-ROUTING
license? ............................................................................................ 71
What is the difference between Global Output Routing and Output Routing in
Presets?............................................................................................ 71
How do I route whatever is being monitored to the XLR and A S outputs?.. 71
How do I have a downmixed pre-fade output on A S Pair-1 combined with a
post-fade output on the Analog XLRs? ................................................... 72
How do I make the XLR outputs follow the Audio Meter screen solos & mutes
while the A S Pair-1 does not?............................................................. 72
How do I route only specific monitored channels to the Analog XLR outputs?
....................................................................................................... 73
The optional Global Output Routing feature works great. But what if we don't
want to create any Presets and want to monitor audio only using Source
Select? How would I configure different outputs for Source Select choices?. 73
How do I keep the internal speakers muted and have audio only on the
analog XLR outputs? ........................................................................... 74
How do I ensure that the outputs are automatically muted when the
Headphone jack is inserted?................................................................. 74
What are AoIP-Pair 9 and AoIP Pair 10?................................................. 74
How do I ensure that my outputs are pre-faded but follow the solo-mutes on
the web interface? This will allow us to monitor only the unmuted/solo Audio
Meter channels on amplified stereo speakers connected to the Analog XLR’s.
....................................................................................................... 75
Preset Replication......................................................................................... 76

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Import/ xport Presets................................................................................... 78
xport Configuration ........................................................................... 78
Import Configuration .......................................................................... 79
System....................................................................................................... 81
System Information............................................................................ 81
SFP Information ................................................................................. 82
Licenses............................................................................................ 83
Factory Reset .............................................................................................. 84
Reboot System ............................................................................................ 85
APP NDIX A: Software Upgrades......................................................... 86
Introduction ................................................................................................ 86
Download the Software ................................................................................. 86
Update Methods........................................................................................... 86
Local Update from the Front Panel .................................................................. 87
Updating via the Web GUI using a Flash Drive .................................................. 89
Updating an iVAM1-12G Remotely .................................................................. 91
Updating Multiple Units Remotely ................................................................... 93
APP NDIX B: Dante Network Setup ..................................................... 96
Introduction ................................................................................................ 96
What is in the iVAM1-12G for Dante................................................................ 96
Dante
TM
Device Setup ................................................................................... 98
Dante Clock Selection ................................................................................... 99
Channel Names............................................................................................ 99
A S67 .......................................................................................................100
Device Lock................................................................................................102
Dante Firmware Upgrades ............................................................................102
Additional Information .................................................................................103
Dante
TM
Legal Disclosures.............................................................................103
APP NDIX D: Ravenna (ZMAN) Setup .................................................104
Introduction ...............................................................................................104
What is in the iVAM1-12G for Ravenna ...........................................................104
RAV NNA-Compatible Talker/Listener...................................................104
AVB thernet Features .......................................................................104
Configuring the AOIP Merging Option Card......................................................105
Getting Started | General Settings .......................................................106
Getting Started | PTP.........................................................................107
Getting Started | Session Sources........................................................108
Getting Started | Session Sinks ...........................................................109
Getting Started | Session Info .............................................................110
Getting Started | Ins/Outs ..................................................................111
Getting Started | I/O Router ...............................................................111
Operation: .................................................................................................112
Connecting Remote Source to Local Sink ..............................................112
ZMAN Session Sinks ..........................................................................112
ZMAN Session Sources.......................................................................114
ZMAN Updating.................................................................................114
APP NDIX : API Documentation .......................................................115

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Introduction ...............................................................................................115
API: Presets ...............................................................................................115

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CHAPTER 1: Installation
Introduction
Overview
The iVAM1-12G is a 1RU multichannel multi-source audio/video monitor with basic
12G-SDI and analog inputs. It may also be purchased with a large variety of other
inputs or these may be added later at the need arises. Refer to the Specifications
section of this manual or contact Wohler Sales for more information.
The iVAM1-12G is compact and simple to operate, with straightforward controls. It
has a touch screen LCD display providing either video or high resolution level
meters, and in addition has an HDMI output. Any channels (or channel pairs) from
any audio/video source stream may be monitored. ither 8 or 16 channel meters
can be displayed.
The iVAM1-12G includes two 12G SDI inputs and it can monitor both video and
audio from them. Standard features include Loudness measurement, phase status
and HDR detection. Optional modules will allow decoding of an additional SDI input,
MADI, A S3, Dolby D, DD+, , SMPT 2110, SMPT 2022-6, and A S streams. It
contains APIs for remote management. License other signal formats and processing
options, including Dolby, AoIP (Dante or Ravenna), ST 2110, and others as and
when needed.
Setups are created and configured using local menus and a web browser over a
network connection to the integral web server of the iVAM1-12G. The web server
will also allow you to view the audio meters remotely.
Safety
Instructions
1. Read, keep, and follow all of these instructions; heed all warnings.
2. Do not use this equipment near water.
3. Use only a dry cloth to clean the equipment.
4. Do not block any ventilation openings.
5. Do not install near any heat source such as a radiator, heat register, amplifier, or
stove.
6. Do not attempt to plug the unit into a two-blade outlet (with only two prongs of
equal width).
7. Protect the power cord from being walked on or pinched, particularly at plug
Important:
By design, the supplied AC mains power cord will only plug into a
three-prong grounded outlet for your safety. If the plug does not fit
into the outlet, contact an electrician to replace the obsolete outlet.

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connection on the equipment and at the socket.
8. Use only the attachments/accessories specified by the manufacturer.
9. Unplug the equipment during lightning storms or when unused for long periods
of time.
10. Refer all servicing to qualified service personnel. Servicing will be required
under all of the following conditions:
a. The equipment has been damaged in any way, such as when the power-
supply cord or plug is damaged.
b. Liquid had been spilled or objects have fallen onto the equipment.
c. The equipment has been exposed to rain or moisture.
d. The equipment does not operate normally.
e. The equipment has been dropped.
Safety Symbols
Mounting
The unit is designed for a standard 19" rack. Install it at ear/eye level for best high
frequency response and visual observation of the display screens. Please adhere to
the following clearances:
Table 1-1: Clearance Recommendations
Clearance Surface
24” Front
3” Rear
2” Sides
1.75” Top and Bottom (if either radiates heat)
0” Top and Bottom (if no heat)
Heat Dissipation
The ambient temperature inside the mounting enclosure should not exceed 40°
Celsius (104° Fahrenheit). Adjacent devices can be rack mounted (or stacked) in
proximity to the unit if this temperature is not exceeded. Otherwise, allow a 1RU
(1.75”/44.45mm) space above and below the unit for air circulation.
WARNING:
The symbol to the left warns of electric shock hazard inside the unit.
Disconnect the power cord before removing access panels when
installing upgrades. Only qualified service personnel are to operate
the equipment with covers removed, and are to exercise caution to
avoid personal injury.

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Sympathetic Vibration
Sympathetic vibration from other equipment (cables, etc.) in the rack may be
serious enough to interfere with the unit’s sound quality. If you experience
sympathetic vibrations, use thin card stock, felt, foam, or weather-stripping
between the vibrating surfaces. Tie loose cables securely with cable ties.
Mechanical Bracing
The 1RU chassis is securely attached to the front panel. In addition, the chassis has
mounting tabs through which you attach it to the rack rail. This feature will reduce
or eliminate rear bracing requirements in many mobile/portable applications. The
weight of internal components is distributed fairly evenly around the unit.
lectrical Interference
Be careful to avoid mismatched cable types and other similar causes of undesired
reflections in digital signal systems. If severe enough, such reflections can result in
corruption of the digital data stream. As with any audio equipment, maximum
immunity from electrical interference requires the use of shielded cable; however,
satisfactory results can sometimes be obtained without it. The internal circuitry
ground is connected to the chassis.
Power
The unit connects to an AC mains power source (100 to 240 VAC, 65W, 50/60Hz)
using an I C power cord.
When the mains plug or appliance coupler is used as the disconnect device, the
disconnect device should remain operable.
Compliance
FCC
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at
their own expense.
Important
:
Heat generated by the class D power amplifiers, power supplies,
and other components is vented by slots in the sides and back of
the unit. Therefore, as a safety precaution, you must allow proper
ventilation on these surfaces.

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IC S-003
This Class A digital apparatus complies with Canadian IC S-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du
Canada.

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CHAPTER 2: Local Operation
Operation
The iVAM1-12G can be operated easily and simply from controls on its front panel,
as described in this chapter. It may be accessed remotely in two ways, via the
Wohler Web GUI for administrative purposes or by third party equipment via
Application Programming Interface (API) commands. The Wohler Web GUI is
described in Chapter 4 of this manual. The API commands are described in
Appendix of this manual.
Startup
The iVAM1-12G will begin its startup process when it is connected to power. There
is no power switch. It is normal for the product to require about 45 seconds to start
up and be ready to use.
When the iVAM1-12G completes its startup, the Status indicator will turn green.
Depending upon optional settings, all channel pairs will either be in the muted
condition or set in a predetermined way. You may then use the Source and
Channel controls to enable only the program channels you want to hear.
ront Panel
The front panel is shown in Figure 2-1.
Figure 2–1: iVAM1-12G Front Panel
1. Audio Level Meters: Two 2.4" LCD screens allow monitoring of audio with high
resolution bar graph meters of up to 16 channels.
2. Video: A third 2.4" LCD screen allows monitoring of Video. Optionally, this screen
can be set to monitor Loudness.
3. Speakers: Local near field audio monitoring is achieved through the use of class D
amplifiers. There are two (left/right) speakers. The speaker response may be
adjusted with tone controls in the Speaker Options menu. Refer to the Menu /
Option Touchscreen section of Chapter 2.

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4. Headphone Jack: A 1/4" jack for an optional headphone is provided on the front
panel. Speaker audio will be muted when headphones are plugged in. If the
Output Routing option is installed, speaker audio may optionally be set to not
mute, using the Wohler Web GUI. Refer to the Output Options section of Chapter
4. If the speaker audio is set to mute with headphone insertion, and a headphone is
plugged into the Headphone Jack, the following icon will appear at the top of the
Audio Meter Display:
5. Volume: This controls the speakers, the headphone, the analog outputs, and the
HDMI audio output. As the Volume control is turned, a graphic appears at the top
of the Audio Meter Display screen, as follows:
Pressing the Volume control mutes the audio and a speaker muted icon appears at
the top the Audio Meter Display: This icon also displays whenever the
Volume control is turned all the way counterclockwise.
6. Balance: This controls the relative left/right levels for the monitored stereo mix.
Pressing the knob will bring the balance back to center. It controls the speakers,
the headphone, the analog outputs, and the HDMI audio output. As the Balance
control is turned, a graphic appears at the top of the Audio Meter Display as
follows:
7. Source/Preset: Turning this control right or left selects between the available
licensed input sources. The selected Source input is displayed at the top of the
Audio Meter screen as follows:
Pressing the Source/Preset control selects between displaying the video from the
selected SDI source or displaying the Main Menu.
Alternatively, the Source/Preset control can be used to select from any Preset, or
from any Favorite Preset. Refer to the Source Knob Select setting in the Unit
Config menu. Regardless of this menu setting, when the Loudness Meter Screen is
displayed, the Source/Preset knob selects which Loudness Cluster is to be
measured and monitored.
To use the Source/Preset control to change the Channel Gain and Speaker
Assignment of a particular channel, refer to the Channel Gain and Speaker
Assignment paragraph of the Channel Meters and Touch Operations section
of this chapter.
8. Channel: Turning this control moves a white selection box from channel to channel
on the metering screens. Press the control to solo the highlighted channel. The box
will turn blue and any other boxes will disappear. To remove the solo and return to
the previous monitoring configuration, press the Channel control once again.
9. USB: This USB 2.0 Type A connector allows you to use a flash drive (not supplied)
to perform software updates and copy system configurations to another iVAM1-12G
or to a PC. Refer to Appendix A of this manual to learn about performing a
software update.

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10. Status: This indicator lights green when the system is powered and ready for use.
A solid or blinking yellow color indicates that the product is starting up. A red color
indicates that a system update is taking place. Refer to Appendix A for procedures
to update software.
Rear Panel
The rear panel is shown in Figure 2-2.
Figure 2-2: iVAM1-12G Rear Panel Layout
MADI
Fiber SFP
MADI
BNC
SFP Module
Cage
Network
Port
Balanced XLR
Analog Inputs
Balanced XLR
Analog utputs
SDI
Inputs
SDI
utput
HDMI utput AES Inputs Power
Connection
AES utputs
Balanced DB-25
Analog Inputs
Balanced DB-
25 Analog
utputs
T SLINK
ptical
Input
T SLINK
ptical
Input
AoIP SFP
Module Cage
Primary /
Secondary
1GB ENET
ption Card
Slot
SFP Module
Cage
SFP Module
Cage
Power Connection: The iVAM1-12G receives power from an AC inlet, which is a
standard I C receptacle for 100 to 240 VAC ±10%, 50/60 Hz power connection. Four
regional AC power cords, supplied according to shipping region, are available.
1. SDI Inputs: These two BNC connectors accept the two 12G/3G/HD/SD-
SDI input signals containing audio and video to be monitored. This is a
standard feature.
2. SDI Output: This BNC connector outputs the selected 12G/3G/HD/SD-
SDI or SFP module input signal.
3. HDMI Output: An HDMI output of the monitored 12G/3G/HD/SD-SDI or
SFP module video source is available from this connection.
4. Network Port: This thernet port can connect to either a LAN or to a PC
Important:
By design, the supplied AC mains power cord will only plug into a
three-prong grounded outlet for your safety. If the plug does not fit
into the outlet, contact an electrician to replace the obsolete outlet.

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to let you perform administrative tasks remotely. The Wohler Web GUI is
described in Chapter 4 of this manual. Third party equipment, connecting to
the iVAM1-12G via a LAN plugged into this port and using an API commands,
can view and change product options, as well. This API is described in
Appendix of this manual.
5. MADI BNC: (optional) The COAX input accepts an A S10 64-channel
signal at 48 kHz sample rate. An optional license key must be purchased to
enable this function. The COAX output is reclocked from the MADI source.
When power to the iVAM1-12G is not present, the COAX input and output
are automatically connected together to allow the MADI signal to pass
through. A software license must be installed for this input to function.
Refer to the System Setup section in Chapter 4 to install software
licenses.
6. MADI iber S P: (optional) This input module accepts an optical A S10
64-channel MADI input signal at 48 kHz sample rate. An optional license
key must be purchased to enable this function. A software license must be
installed for SFP ports to function. Refer to the System Setup section in
Chapter 4 to install software licenses.
7. AES Inputs: (optional) This HD-15F connector accepts 4 A S3id digital
audio pairs (8 channels) at a 48 kHz sample rate. Refer to Figure 2-3 for
the pinout of this connector. The easiest way to interface with this
connector is to use an HD-15 to VGA adaptor cable. Channels are selected
as A S 1-8. A software license must be installed for these inputs to
function. Refer to the System Setup section in Chapter 4 to install
software licenses.
Figure 2-3: A S HD-15F Connector Pinout
8. AES Outputs: This HD-15F connector provides 4 A S3id digital audio
pairs (8 channels) at a 48 kHz sample rate from selected monitored
sources. Refer to Figure 2-3 for the pinout of this connector. The easiest
way to interface with this connector is to use an HD-15 to VGA adaptor
cable. These outputs are not controlled by the Volume and Balance
controls. Monitored channels 1 and 2 are sent from A S-1, channels 3 and
4 are sent from A S-2, channels 5 and 6 are sent from A S-3, and
channels 7 and 8 are sent from A S-4.

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9. S P Module Cage: An SFP cage is provided to accept one optional SFP
module compatible with SDI coaxial or optical signals. The SFP modules
are hot swappable for convenience. An optional license key must be
purchased to enable each module. A software license must be installed for
the SFP port to function. Refer to the System Setup section in Chapter 4
to install software licenses. The following SFP modules are offered:
a. 3G/HD/SD-SDI Single Video Receiver with Active Loopback:
This uses HD-BNC connectors.
b. 12G/3G/HD/SD-SDI Video S P with Optical Input: This uses
LC fiber connectors. It is a Single-Mode Receiver, Medium Haul,
Non-MSA, and no output.
c. SMTPE 2022-6 Receiver: This uses Multi-Mode 850 NM, LC fiber
connectors. It allows the iVAM1-12G to monitor SDI audio
transmitted in real time over thernet. You must use the MN-Set
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
d. SMTPE 2110 Receiver: This uses Multi-Mode 850 NM, LC fiber
connectors. It allows the iVAM1-12G to monitor SDI audio
transmitted in real time over thernet. You must use the MN-Set
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
e. SMTPE 2110 or 2022-6 Receiver: This uses Multi-Mode 850 NM,
LC fiber connectors. It allows the iVAM1-12G to monitor SDI audio
transmitted in real time over thernet. You must use the MN-Set
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
10. Analog Inputs: These female XLR connectors provide two balanced
analog inputs: Left and Right . The Analog Inputs are standard on the
iVAM1-12G. Refer to Figure 2-4 for the pinout of this connector.
Figure 2-4: Analog XLR-F Output Connections
11. Analog Outputs: These male XLR connectors provide two balanced
analog outputs: Left and Right . The source of these signals is the mix of
audio as monitored by the internal speakers and is adjusted by the

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Volume and Balance controls. The Analog Outputs are standard on the
iVAM1-12G. Refer to Figure 2-5 for the pinout of this connector.
Figure 2-5: Analog XLR-M Output Connections
12. Option Card Slot: This metal plate can be removed to reveal a location
in which future optional modules can be installed.
13. TOSLINK Optical Input (optional): This connector is located on the
panel of the optional OPT-iVAM ANALOG Option card, as well as on the
panel of the AoIP Option card. It provides an optical stereo pair input.
14. Balanced Analog DB-25 Outputs (optional): This DB-25 female
connector outputs 8 channels of +10dBu broadcast level balanced audio.
This connector is located on the panel of the optional OPT-iVAM ANALOG
Option card. The source of these signals is the monitored audio channels
as shown on meters 1 - 8. Tascam cables may be used, and can be
purchased by contacting Wohler Sales. Refer to Figure 2-6 for the pinout
of this connector.
Note: PCM channels marked as data channels (such as those containing
encoded Dolby streams) are automatically muted from being sent out to the
external amplifier and speakers.
Note: When these outputs are used to connect to an external amplifier and
speakers, the external amplifier should be muted whenever the iVAM1-12G is
being powered up or powered down.
15. Balanced Analog DB-25 Inputs (optional): This DB-25 female
connector inputs 8 channels of up to +10dBu broadcast level balanced
audio. This connector is located on the panel of the optional OPT-iVAM
ANALOG Option card. These signals are monitored on meters 1 - 8 by
default. Tascam cables may be used, and can be purchased by contacting
Wohler Sales. Refer to Figure 2-6 for the pinout of this connector.

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Figure 2-6: Analog DB-25F Input and Output Connections
12345678910111213
141516171819202122232425
GG
GG
GGGG
N/C
L R L R L R L R
Pair 1 Pair 2 Pair 3 Pair 4
16. AoIP S P Module Cage (optional): This provides a location in which to
insert the AoIP Module supplied with the OPT-DANT (iVAM) and OPT
RAV NNA 64 options.
17. Primary / Secondary 1GB ENET (optional): Primary and Secondary
Gigabit thernet interfaces are provided with the AoIP option module.
S P-2022-6 / S P-2110 Address Setup
While the optional SFP-2022-6 and SFP-2110 modules monitor program audio
created from distinctly different technologies, both are connected to the network in
the same way and have the same requirements for addressing. Figure 2-7
illustrates the network connections they need.
Figure 2-7: SFP-2022-6 and SFP2110 Network Diagram
Ethernet Network & Swit h
Broad ast Equipment
Throughout the Fa ility
iVAM1-12 with SFP-2022-6 / SFP-2110
PC
Fiber
Opti
192.168.39.217
192.168.39.215
The optional SFP-2022-6 or SFP-2110 module furnished by Wohler Technologies is
manufactured by mbrionix and comes from the factory with a default IP address.
To integrate it into your digital network, you need to set its address to the source to
be monitored. You must use the MN-Set configuration software to set up this

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option. It is available from Wohler Technologies Technical Service. The procedure to
accomplish this is described in the S P-2022-6 / S P-2110 Setup Guide (part
number 821822), which is available at https://wohler.com/downloads/ .
Channel Meters and Touch Operations
The audio mixer terminology of “solo” is used in this manual when referring to
muting all but a specific audio channel or pair.
Audio meters are displayed on touchscreen LCD display(s) in up to 8 channel pairs,
as shown in Figure 2-8.
Figure 2-8: Audio Level Meter Screens
-00
-60
-40
-30
-20 -20
-30
-40
-60
-00
S
t
u
d
i
o
A
56 34 12
-00
-60
-40
-30
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Channel Identifiers
Channel / Cluster / Loudness Touch Selection Area
87
SDI-1
Loudness Reading
Loudness Cluster Marker
LKFS-M : -20.5
1. Channel Identifiers: Above the level meters are the Channel Identifiers.
They indicate the consecutive channel numbers in the selected source.
An arrow pointing to the left indicates that this is a left channel and
will be monitored in the left speaker.
An arrow pointing to the right indicates that this is a left channel and
will be monitored in the right speaker.
A square indicates that this is a center channel and will be monitored
in both speakers.
The symbol shown on channels 7 and 8 in Figure 2-8 indicates
that this channel pair is a Dolby bitstream. Refer to the Dolby
Zoom section of this chapter.
2. Loudness Cluster Marker: This orange bracket marks which cluster is
currently being measured for Loudness.
1
2
3
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3. Loudness Reading: This control displays the Loudness of the selected
Cluster. It can also be touched to change which Cluster is being
measured. To do this, touch the green Loudness Reading control. It will
temporarily turn orange. You may then touch the meters in any other
cluster. The Loudness Cluster Marker will then move to that cluster and
its measurement will begin and be displayed. You may then touch the
control again to return it to its green color, restoring normal touch
functioning, or wait 15 seconds for it to time out.
4. Channel/Cluster/Loudness Selection Area: Touching the meters of
any channel pair will let you mute, un-mute, or solo the associated
channel(s). Colored boxes surrounding the channel pair or channel
indicate what operation is being performed. The following describes each
function:
a. Mute / Un-Mute Selection: A violet box surrounds any channel
pair that is muted. Typically, when the iVAM1-12G is first powered,
all of the channel pairs are muted. Touching a muted channel pair
un-mutes it and removes the violet box. Muting and un-muting by
touching is an alternate action function.
b. Solo Selector: Touch for two seconds any channel pair you would
like to solo. A blue box will then surround the pair and that will be
the only pair you hear. Any violet boxes will disappear. Touching
another channel pair will then move the blue box to it, and it will be
soloed. Touch again to return the combination of monitored channel
pairs to the way they were before you soloed the pair.
c. Channel Solo: Rotating the Channel control will move a white
selection box from channel to channel. Press the Channel control
to solo the selected channel. That channel alone will then be
surrounded by a blue box and it will become the only channel being
monitored. Press the Channel control again or touch anywhere on
the meters to undo the solo and return the combination of
monitored channel pairs to as it was before you soloed the channel.
5. Channel Gain and Speaker Assignment: The channel gain and speaker
assignment of a particular channel can be changed dynamically from the
Front Panel controls. When a channel is soloed (as in the Solo Selector
paragraph above) the Source/Preset knob can be used to perform the
following operations:
a. Adjust Channel Gain: The user can rotate the Source/Preset
knob to adjust the channel gain for the soloed channel. This affects
the input channel gain. Valid range is from -60 to 12 dB. The
selected gain will display at the top of the screen:
Changing channel gain affects all the outputs that have “Volume
Control” enabled.
b. Channel Assignment Change: Press the Source/Preset knob
once to toggle to Channel Assignment Change mode. In this
mode, rotating the Source/Preset knob changes the speaker that
the channel is assigned to. The valid assignments are: Left, Right,

iVAM1-12G
Page 20
Center, LF , Left Surround, Right Surround, Back Surround Left,
Back Surround Right, Mono Surround. The selected assignment will
appear at the top of the screen: This assignment
only affects the internal speakers and no other outputs.
Note: In Solo mode, the Source/Preset knob cannot be used to
change the source. The changes made to the channel gains and/or
speaker assignments are temporary and revert to the original values
when a Source Select or Preset Recall operation is performed.
6. Phase Indicators: At the bottom of each channel pair is a Phase
Indicator. The indicators light a dull green if the channels in the pair are
in phase or bright red if they are out of phase. Set which Phase Indicators
appear using the Phase Config Menu or with the System Preferences:
Phase Indicator Configuration tab in the Wohler Web GUI.
Video Screen
Information about the signal can be superimposed over the upper part of the video
image. The Video Info selection in the Unit Config Menu determines whether this
information is always displayed, never displayed, or is only displayed for the first 5
or 10 seconds after switching to the video screen. Figure 2-9 shows the Video
Screen.
Figure 2-9: Video Screen
1. Video Source: This box displays the input source of the video signal.
2. Video Signal: This box displays the resolution and frame rate of the
video signal. A large variety of signals are detected, including HDR.
Note: If the Video Source and Video Signal displays have been optioned
to disappear after 5 or 10 seconds and you wish them to reappear, simply
touch the video screen.