Wohler iVAM2-2 User manual

iVAM2-2
2RU Multi-Channel Audio Video Monitor
User Guide
Part Number 821831, Revision D

iVAM2-2
Page 2
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Last Update
March 6, 2023

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TABLE OF CO TE TS
Table of Contents
User Guide ........................................................................................ 1
TABLE F C NTENTS .......................................................................... 3
Table of Contents ........................................................................................... 3
CHAPTER 1: Installation....................................................................... 7
Introduction .................................................................................................. 7
verview ............................................................................................ 7
Safety .......................................................................................................... 7
Instructions ......................................................................................... 7
Safety Symbols.................................................................................... 8
Mounting............................................................................................. 8
Heat Dissipation................................................................................... 8
Sympathetic Vibration........................................................................... 9
Mechanical Bracing ............................................................................... 9
Electrical Interference ........................................................................... 9
Power ................................................................................................. 9
Compliance ................................................................................................... 9
FCC.................................................................................................... 9
ICES-003 ............................................................................................ 9
CHAPTER 2: Local peration............................................................... 10
peration.................................................................................................... 10
Startup....................................................................................................... 10
Front Panel.................................................................................................. 10
Rear Panel................................................................................................... 12
SFP-2022-6 / SFP-2110 Address Setup............................................................ 17
Channel Meters and Touch perations............................................................. 18
Video Screen ............................................................................................... 20
Dolby Zoom Screen ...................................................................................... 20
Menu / ption Touchscreen ........................................................................... 22
Main Menu ........................................................................................ 23
Unit Settings ..................................................................................... 23
Speaker ptions................................................................................. 24
Meter Scales...................................................................................... 25
Unit Configuration .............................................................................. 27
Phase Configuration............................................................................ 28
HDMI Settings ................................................................................... 29
Analog Configuration .......................................................................... 30
Source Select .................................................................................... 31
Presets ............................................................................................. 32
Preset Favorites ................................................................................. 33
All Presets ......................................................................................... 34
Loudness Meter.................................................................................. 35
Loudness Settings .............................................................................. 37

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System ptions Menu ......................................................................... 38
Network Settings................................................................................ 39
System Reboot .................................................................................. 41
System Update .................................................................................. 42
Factory Reset .................................................................................... 43
System Details................................................................................... 44
Passcode Settings .............................................................................. 45
Forgotten Passcode ............................................................................ 47
CHAPTER 3: Technical Info ............................................................... 48
CHAPTER 4: The iVAM2-2 Web GUI ..................................................... 53
Web Browser / Control Device........................................................................ 53
First Time IP Assignments ............................................................................. 53
Peer-to-Peer Connection...................................................................... 53
Network Connection............................................................................ 54
Network Setup............................................................................................. 55
Dashboard .................................................................................................. 56
Audio Meters ............................................................................................... 60
System Preferences...................................................................................... 61
System Audio Clock Reference ............................................................. 61
Loudness Configuration Tab ................................................................. 62
Phase Indicator Configuration Tab......................................................... 63
Front Panel Configuration Tab .............................................................. 64
Preset Management...................................................................................... 66
Dolby Presets .............................................................................................. 71
utput Routing ............................................................................................ 72
Destination utputs............................................................................ 73
Source Inputs .................................................................................... 73
utput ptions .................................................................................. 74
Typical Questions Regarding utput Routing .................................................... 74
What signal outputs can be controlled using the utput Routing feature? ... 74
How do the outputs behave if I do not purchase PT- UTPUT-R UTING
license? ............................................................................................ 75
What is the difference between Global utput Routing and utput Routing in
Presets?............................................................................................ 75
How do I route whatever is being monitored to the XLR and AES outputs?.. 75
How do I have a downmixed pre-fade output on AES Pair-1 combined with a
post-fade output on the Analog XLRs? ................................................... 76
How do I make the XLR outputs follow the Audio Meter screen solos & mutes
while the AES Pair-1 does not? ............................................................. 76
How do I route only specific monitored channels to the Analog XLR outputs?
....................................................................................................... 77
The optional Global utput 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?. 77
How do I keep the internal speakers muted and have audio only on the
analog XLR outputs? ........................................................................... 78
How do I ensure that the outputs are automatically muted when the
Headphone jack is inserted?................................................................. 78
What are AoIP-Pair 9 and AoIP Pair 10?................................................. 78
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.
....................................................................................................... 79

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Preset Replication......................................................................................... 80
Import/Export Presets................................................................................... 81
Export Configuration........................................................................... 82
Import Configuration .......................................................................... 83
System....................................................................................................... 84
System Information............................................................................ 84
SFP Information ................................................................................. 85
Licenses............................................................................................ 86
Factory Reset .............................................................................................. 87
Reboot System ............................................................................................ 88
APPENDIX A: Software Upgrades......................................................... 89
Introduction ................................................................................................ 89
Download the Software ................................................................................. 89
Update Methods........................................................................................... 89
Local Update from the Front Panel .................................................................. 90
Updating via the Web GUI using a Flash Drive .................................................. 92
Updating an iVAM2-2 Remotely ...................................................................... 94
Updating Multiple Units Remotely ................................................................... 96
APPENDIX B: Dante Network Setup ..................................................... 99
Introduction ................................................................................................ 99
What is in the iVAM2-2 for Dante.................................................................... 99
Dante
TM
Device Setup ..................................................................................101
Dante Clock Selection ..................................................................................102
Channel Names...........................................................................................102
AES67 .......................................................................................................103
Device Lock................................................................................................105
Dante Firmware Upgrades ............................................................................105
Additional Information .................................................................................106
Dante
TM
Legal Disclosures.............................................................................106
APPENDIX D: Ravenna (ZMAN) Setup .................................................107
Introduction ...............................................................................................107
What is in the iVAM2-2 for Ravenna...............................................................107
RAVENNA-Compatible Talker/Listener...................................................107
AVB Ethernet Features .......................................................................107
Configuring the A IP Merging ption Card......................................................108
Getting Started | General Settings .......................................................109
Getting Started | PTP.........................................................................110
Getting Started | Session Sources........................................................111
Getting Started | Session Sinks ...........................................................112
Getting Started | Session Info .............................................................113
Getting Started | Ins/ uts ..................................................................114
Getting Started | I/ Router ...............................................................114
peration: .................................................................................................115
Connecting Remote Source to Local Sink ..............................................115
ZMAN Session Sinks ..........................................................................115
ZMAN Session Sources.......................................................................117
ZMAN Updating.................................................................................117

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APPENDIX E: API Documentation .......................................................118
Introduction ...............................................................................................118
API: Presets ...............................................................................................118
APPENDIX F: ut of Band Control.......................................................130
Introduction ...............................................................................................130
SFP IP Address Configuration ........................................................................130
SFP System Configuration ............................................................................131
SFP 2110 Configuration................................................................................132
SFP 2110 Preset Config................................................................................135
Diagnostic Information.................................................................................136

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CHAPTER 1: Installation
Introduction
verview
The iVAM2-2 is a 2RU multi-channel multi-source audio/video monitor with basic
3G-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 iVAM2-2 is compact and simple to operate, with straightforward controls. It has
two touch screen LCD displays providing video and 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.
The iVAM2-2 includes two 3G SDI inputs and it can monitor both video and audio
from them. ptional modules will allow decoding of an additional SDI input, MADI,
AES3, Dolby D, DD+, E, SMPTE 2110, SMPTE 2022-6, and AES streams. It contains
APIs for remote management.
Setups are created and configured using local menus and a web browser over a
network connection to the integral web server of the iVAM2-2. 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
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
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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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. therwise, allow a 1RU
(1.75”/44.45mm) space above and below the unit for air circulation.
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.
WAR I G:
The symbol to the left warns of electric shock hazard inside the unit.
Disconnect the power cord before removing access panels when
installing upgrades. nly 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 2RU 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.
Electrical 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 IEC 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.
peration of this equipment in a residential area is likely to cause harmful
interference, in which case users will be required to correct the interference at their
own expense.
ICES-003
This Class A digital apparatus complies with Canadian ICES-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 iVAM2-2 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 E of this
manual.
Startup
The iVAM2-2 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 iVAM2-2 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.
Front Panel
The front panel is shown in Figure 2-1.
Figure 2–1: iVAM2-2 Front Panel
Balance
Headphone
Jack
USB Status
Speakers
Channel
Volume Video Screen
Source
Audio Meter Screen
HD/720p/50Hz
-00
-20
-30
-40
-60
-00
10
9S
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o
A
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o
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56 34 1214
13 16
15
12
1187
S
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LKFS-M -24.6 SDI-1
-20
-30
-40
-60
1. Video Screen: A 4.3” LCD touch screen allows monitoring of video.
2. Audio Meter Screen: A 4.3” LCD touch screen allows monitoring high resolution
bar graph meters of up to 16 channels.
3. Speakers: Local near field audio monitoring is achieved through the use of class D

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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.
4. Headphone Jack: A 1/4" jack for an optional headphone is provided on the front
panel. Speaker audio can be optioned to either mute or not mute when
headphones are plugged in. This is set in the Speaker Options menu. 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 near the center top of the
Meter Screen:
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
center top of the Meter Screen, as follows:
Pressing the Volume control mutes the audio and a speaker muted icon appears
near the center top the Meter Screen: 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 center top of the Meter Screen as
follows:
7. Source: Turning this control right or left selects between the available licensed
input sources. The selected Source input is displayed in the center of the Audio
Meters Screen as follows:
SDI-1
Pressing the Source control selects between displaying the video from the selected
SDI source or displaying the Main Menu.
Alternatively, the Source 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 knob selects which Loudness Cluster is to be measured and
monitored.
8. Channel: Turning this control moves a white selection box from channel to channel
on the metering screen. 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 iVAM2-2
or to a PC. Refer to Appendix A of this manual to learn about performing a
software update.
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

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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: iVAM2-2 Rear Panel & ption Cards
Balanced DB-25
Analog nputs
Balanced DB-
25 Analog
Outputs
TOSL NK
Optical
nput
MAD
Fiber SFP
MAD
BNC
SFP Module
Cage
Network
Port
Balanced
Analog nputs
Balanced
Analog Outputs
SD
nputs
SD
Output
HDM Output AES nputs Power
Connection
AES Outputs
Option
Card Slot
SFP Module
Cage
SFP Module
Cage
TOSL NK
Optical
nput
Ao P SFP
Module Cage
Primary /
Secondary
1GB Ethernet
Ports
Combo
Port
Power Connection: The iVAM2-2 receives power from an AC inlet, which is a standard
IEC 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 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 3G/HD/SD-SDI or
SFP module input signal.
3. HDMI Output: An HDMI output of the monitored 3G/HD/SD-SDI or SFP
module video source is available from this connection.
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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4. etwork Port: This Ethernet port can connect to either a LAN or to a PC
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 iVAM2-2 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 E
of this manual.
5. MADI B C: (optional) The C AX input accepts an AES10 64-channel
signal at 48 kHz sample rate. An optional license key must be purchased to
enable this function. The C AX output is reclocked from the MADI source.
When power to the iVAM2-2 is not present, the C AX 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 Fiber SFP: (optional) This input module accepts an optical AES10
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 AES3id 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 AES 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: AES HD-15F Connector Pinout
8. AES Outputs: This HD-15F connector provides 4 AES3id 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 AES-1, channels 3 and
4 are sent from AES-2, channels 5 and 6 are sent from AES-3, and
channels 7 and 8 are sent from AES-4.

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9. SFP 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. 3G/HD/SD-SDI Video SFP 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 iVAM2-2 to monitor SDI audio
transmitted in real time over Ethernet. 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 iVAM2-2 to monitor SDI audio
transmitted in real time over Ethernet. 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 iVAM2-2 to monitor SDI audio
transmitted in real time over Ethernet. 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
iVAM2-2. Refer to Figure 2-4 for the pinout of this connector.
Figure 2-4: Analog XLR-F utput 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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Page 15
Volume and Balance controls. The Analog Outputs are standard on the
iVAM2-2. Refer to Figure 2-5 for the pinout of this connector.
Figure 2-5: Analog XLR-M utput Connections
12. Option Card Slot: This metal plate can be removed to reveal a location
in which future optional modules can be installed.
13. TOSLI K Optical Input (optional): This connector is located on the
panel of the optional PT-iVAM ANAL G ption card, as well as on the
panel of the AoIP ption 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 PT-iVAM ANAL G
ption 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.
ote: 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.
ote: When these outputs are used to connect to an external amplifier and
speakers, the external amplifier should be muted whenever the iVAM2-2 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 PT-iVAM
ANAL G ption 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 utput 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 SFP Module Cage (optional): This provides a location in which to
insert the AoIP Module supplied with the PT-DANTE (iVAM) and PT
RAVENNA 64 options.
17. Primary / Secondary 1GB E ET (optional): Primary and Secondary
Gigabit Ethernet interfaces are provided with the AoIP option module.
18. Combo Port (optional): An optional 1GB Fiber Ethernet SFP module and
the Primary RJ-45 Ethernet port on the option card operate as a combo
port, that is, they provide two different physical layers, optical fiber or
electrical, but share the same Ethernet characteristics. However, the two
different ports cannot be used simultaneously. You must choose to
connect either one or the other.

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SFP-2022-6 / SFP-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
The optional SFP-2022-6 or SFP-2110 module furnished by Wohler Technologies is
manufactured by Embrionix 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
option. It is available from Wohler Technologies Technical Service. The procedure to
accomplish this is described in the SFP-2022-6 / SFP-2110 Setup Guide (part
number 821822), which is available at https://wohler.com/downloads/ .

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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 Screen
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. Source/Preset: This displays the name of the Source or Preset currently
being displayed.
3. Loudness Cluster Marker: This orange bracket marks which cluster is
currently being measured for Loudness.
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4. 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.
5. Channel Pair Touch 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 iVAM2-2 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 be 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.
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. You may set which Phase
Indicators appear using the Phase Config Menu or with the System
Preferences: Phase Indicator Configuration tab in the Wohler Web
GUI.

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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
Video Signal: This box displays the resolution and frame rate of the video
signal. A large variety of signals are detected, including HDR.
ote: 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.
Dolby Zoom Screen
Dolby Zoom is a very powerful analysis tool. Much as a camera lens can "zoom"
into a single subject of interest out of many, the Dolby Zoom feature lets you
quickly "zoom" into a single Dolby bitstream, out of multiple encoded Dolby
streams and other channels. You can immediately listen to and meter the contained
audio channels, as well as view the Dolby metadata. Bitstreams are shown
distinctively along with the normal metering channels, as shown in Figure 2-8. The
Dolby Zoom Screen is shown in Figure 2-10.
Dolby decoding is an optional feature requiring the PT-D LBY module. It
allows decoding and monitoring of Dolby® D, DD+, & E streams. Refer to the
System Setup section in Chapter 4 to install software licenses.