Skip to main content

Meyer Sound Documentation

User Guide — Nebra

In this section:
Nebra_App_Icon.png
nebra_logo_black.png

Software Tools Platform

Nebra is part of the Meyer Sound Tool Box, enabling AVB Milan connection management, loudspeaker telemetry reporting, and firmware updates.

The latest version of Nebra is compatible with macOS 13 (Ventura) and Windows 11 Professional.

Included functions:

  • AVB Connection Manager: To establish Milan AVB connections, a simple drag-and-drop interface is used. Rather than presenting all of the possible connection points of all devices, Nebra only presents the available channels of the two devices. Milan-certified network switches are required for Milan connections and digital audio transport. Visit avnu.org for a listing of certified network switches.

  • Telemetry Monitoring: Nebra monitors the telemetry data from Milan-based devices over standard Ethernet, including Meyer Sound loudspeakers with equipped with Milan end-points. For Meyer Sound loudspeakers using RMS technology, Nebra functions in parallel with Compass software and the RMServer hardware. A Milan-certified network switch is not required for this function.

  • Updates: When a computer running Nebra is connected to the Internet, if new versions of Nebra or device firmware are available, they will be automatically downloaded. Notifications advise users if action is needed or recomended.

User Guide — Nebra
meyer-blue-rule-line.png

Nebra is part of the Meyer Sound Tool Box, enabling AVB Milan connection management, loudspeaker telemetry reporting, and firmware updates.

The latest version of Nebra is compatible with macOS 13 (Ventura) and Windows 11 Professional.

Included functions:

AVB Connection Manager: To establish Milan AVB connections, a simple drag-and-drop interface is used. Rather than presenting all of the possible connection points of all devices, Nebra only presents the available channels of the two devices. Milan-certified network switches are required for Milan connections and digital audio transport. Visit avnu.org for a listing of certified network switches.

Telemetry Monitoring: Nebra monitors the telemetry data from Milan-based devices over standard Ethernet, including Meyer Sound loudspeakers equipped with Milan end-points. For Meyer Sound loudspeakers using RMS technology, Nebra functions in parallel with Compass software and the RMServer hardware. A Milan-certified network switch is not required for this function.

Updates: When a computer running Nebra is connected to the Internet, if new versions of Nebra or device firmware are available, they will be automatically downloaded. Notifications advise users if action is needed or recommended.

Getting started
meyer-blue-rule-line.png
Download Nebra software
meyer-blue-rule-line.png
  1. Open meyersound.com/product/nebra/#software

  2. Click the link that corresponds to your computer’s operating system.

  1. Locate the downloaded .zip file in Finder (usually in the Downloads folder) and double-click it to expand the .zip file. The installer file will be added to the same folder.

  2. Double-click the nebra-1.x.x_mac.pkg installer file to launch the installer.

  3. Agree to the Terms of Use.

  4. In the window that opens, drag the Nebra icon to the Applications folder.

  5. From the Applications folder, launch Nebra.

    Note

    There may be an operating system pop-up if the AVDECC driver is not installed, click OK to install the driver.

  1. Locate the downloaded .msi file in Explorer (usually in Downloads folder) and double-click it to show the contents.

  2. Double-click the nebra-1.x.x_mac.msi installer file to launch the installer.

  3. Click though the Nebra Setup Wizard and accept the End-User License Agreement (EULA).

  4. Click NEXT to install the software in the default file path or select another location.

  5. Select YES to allow the app to make changes.

  6. To launch Nebra, navigate to C:\Program Files\Meyer Sound\Nebra and double-click the Nebra.exe file.

    Note

    • There may be an operating system pop-up if the AVDECC driver is not installed, click OK to install the driver.

    • Another notification may open asking permission to make changes to osascript. Allow this change by entering the operating system user password and then click OK.

Network switch requirements
meyer-blue-rule-line.png

A standard 100bT, IPv6 enabled Ethernet switch is required to transport device telemetry data. An Avnu-certified AVB network switch is not needed.

For Milan digital audio transport, an Avnu-certified AVB network switch is required. These switches support Milan functions. A list of Avnu-certified hardware, including network switches, is available at Avnu Alliance.

First launch
meyer-blue-rule-line.png

While the computer is connected to the Internet, launch the Nebra application. Enter your Meyer Sound Account credentials to login (same as meyersound.com login credentials).

Connect the computer running Nebra to the same network that Milan AVB devices are connected to. The first Nebra computer (Nebra server) must have a wired network connection. Additional computers can access Nebra via a web browser (client), with a wired or wireless connection to the network. Nebra will auto-detect the available devices connected to the network.

The following devices are discovered by Nebra software:

  • Avnu-certified network switches

Meyer Sound Milan AVB-enabled devices (includes telemetry):

  • Galileo GALAXY processors

  • Milan endpoint loudspeakers

These Meyer Sound devices transmit Telemetry data:

  • Loudspeakers equipped with Milan endpoint modules

  • RMServers

  • Loudspeakers equipped with RMS modules (via RMServer)

  • MPS power supplies (power Intelligent DC Loudspeakers)

Other Milan AVB-enabled devices that are commonly available:

  • Mixing consoles

  • Format converters

  • Microphones

  • Amplifiers

  • Signal processors

Workflow
meyer-blue-rule-line.png
User Interface Overview
AppOvrvwCallOut5.png
  1. Hamburger Menu: Sign Out, links to Help, Support, and View Logs

  2. Device Manager

  3. Connection Manager

  4. Snapshots

  5. Settings: Network display, Media Clock Master selection, Notifications preferences, and Display Settings options

  6. System Health Indicator and Event Log

  7. Workspace Focus indicator

  8. Application Search

  9. Hide/Show Properties Sidebar

Getting Started
meyer-blue-rule-line.png

Modify the default Device Names

Select DEVICES (1.svg below). Click on a device type header (Processor, Milan Loudspeakers, etc.) to expand/collapse the list of devices by type. For each listed device, double-click the name and modify the text (2.svg below). These names are stored in the devices and are used to correlate devices listed in software to the physical devices.

Tip

For arrays, a good strategy is to start each name with a number to indicate position in the array followed by a letter or combination of letters to denote the array. This aids when searching for devices and sorting columns. The number at the end of the default name is the serial number of the loudspeaker. For example:

01 Left Main Panther

02 Left Main Panther

Note

  • For network switches, the last three octets of the Milan identity name match those of the device's MAC address. If renaming, including the last three octets may be helpful. For example:

    FE-A0-6B-64, renamed: FOH Primary A0-6B-64

  • Duplicate device names within the same group name are not allowed.

To match devices listed in Nebra to physical devices, use the Wink function. Click once on a device in Devices (1.svg below) or a device in the Connections Workspace to open the Sidebar panel. Click the Wink icon (2.svg below) to turn on the device’s Wink LED(s). Conversely, press the Wink button on the device, which will be indicated in Nebra.

WinkDevice3.png

Nebra, Devices – Click Wink Icon to Turn on Device’s Wink LED

Note

  • The Wink function of PANTHER and 2100-LFC loudspeakers automatically times out after several seconds. The Wink function of other loudspeakers and devices is active until the Wink icon in Nebra is clicked or the Wink button on the device is pushed.

  • To change the device name, double-click the device name at the top of the Sidebar panel.

ChangeGroupName1.png

Nebra, Devices – Double-Click Default Group Name, Type to Modify

Designate a device as the Master Media Clock

Click Settings (1.svg below), click Media Clock (2.svg below), click Set Media Clock ( 3.svg below), and then select a device as the system Media Clock (4.svg below). Click Apply in the dialog to make the designation.

SetMediaClock1.png

Nebra, Settings – Set Media Clock – Settings, Media Clock, Set Media Clock, Select Device

Establish Milan connections

20221121_nebra_device_connection_gxy_ldspkr_1.gif

Nebra, Connections – Make Milan Connection Between Talker and Listener

Steps illustrated above:

  • Select CONNECTIONS

  • Click to expand Available Devices

  • Click-drag a Talker (Galileo GALAXY processor) to Workspace

  • Click-drag Lister (loudspeaker), drop on a Talker, Connection Matrix opens (method 1)

  • Select which Talker Output to connect to the Lister

  • Click BACK

  • Select another Listener and drag into the Workspace

  • Select Connect

  • Drag from the Talker to the Listener (method 2)

  • Select which Talker Output to connect to the Lister

  • Click Back

  • Select Delete

  • Click on a connection line to un-make the connection

  • Click on a device to remove the device from the Workspace

    Note

    While making connections, it is normal for the Health Status indicator to indicate device thresholds have been met while the devices are negotiating the network connection. Click the System Health icon to acknowledge. If there are no errors or faults, the indicator will indicate the status is OK.

Once a connection is made, click the connection line between devices to open the Connection Matrix and modify or de-select the routing.

Save a Snapshot

Select Snapshots (4), click + Create new in upper-right of application window. Name the Snapshot, click OK. Saves the devices and Milan connections in the Workspace for later recall.

View Device Telemetry

To view a device’s real-time telemetry data, click the device name in Devices or the device icon in the Workspace to open the Sidebar. Click the Telemetry tab to display the available details.

LdspkrTelementrySideBar2.png

Nebra, Sidebar, Telemetry Tab – ULTRA-X20 Telemetry

Note

Hover the pointer on the temperature or voltage gauge to display numeric values.

Click the pop-out icon in the upper-right (highlighted above) to pop out the Sidebar in a separate window from the Nebra application.

SidebarPoppedOut1.png

Nebra – Popped Out Standalone Sidebar Window

Download loudspeaker usage data

Loudspeakers equipped with Milan Endpoints store usage data. To download a loudspeaker log to the Nebra computer, right-click the loudspeaker name listed in Devices or right-click the loudspeaker icon in the Workspace to open the pop-up menu and select DOWNLOAD LOG FILES (left, below). The three-dot menu in the Sidebar (if open) includes this option as well (right, below).

LdskrLogDwnld2.png

Nebra – Download Loudspeaker Log File

The .log file is listed in a Finder window that opens.

The macOS file location is:

/Users/meyersound/Library/Logs/Nebra/Downloaded_Logs

The Windows file location is: 

C:\Users\Nebra\AppData\Roaming\Nebra\Logs

System monitoring

The System Health indicator will turn from green to yellow (caution) or red (warning) when a device status threshold is met:

StatusIndicators1.png

Click the Health Status icon to acknowledge a caution or warning.

Note

During the connection steps above, it is normal for the System Health indicator to indicate cautions and/or warnings. These are related to the momentary disconnected condition while the connection is established.

When a device status threshold is met, banners that include summary text appear at the bottom of the Workspace to alert users.

BannerExmpl1.png

Nebra – Warning and Caution Banner Examples

Both the System Health indicator and the pop-up banners notify users that new Events have been added to the System Status Log.

EventsTab1.png

Nebra – Events Tab

The macOS file location is:

/Users/meyersound/Library/Logs/Nebra/SystemReportsC:\Users\Nebra\AppData\Roaming\Nebra\Logs\SystemReports

Firmware update
meyer-blue-rule-line.png
How Firmware is Delivered
meyer-blue-rule-line.png

Each time the Nebra computer is connected to the Internet with Nebra software running, the current versions of firmware are automatically downloaded.

Firmware Update Notification
meyer-blue-rule-line.png

If a newer version of firmware is available for a device, a banner will appear at the top of the application window with a VIEW DETAILS button. If the top blue banner is closed, double-click on the warning icon next to the device model that needs a firmware update to update the firmware.

Update Firmware
meyer-blue-rule-line.png

Click the VIEW DETAILS button in the notification banner, which opens a dialog listing the devices with outdated firmware. Click either the individual INSTALL buttons for each device or the INSTALL ALL button in the top-right of the window to install the current version of device firmware.

If you have been provided firmware by some other means, move the firmware file to the Nebra computer. From the DEVICE tool, click once on a device to open the Sidebar. Click the three-dot More menu at the top-right of the Sidebar and select UPDATE FIRMWARE, opening the UPDATE FIRMWARE dialog. Click the paperclip icon to browse for the firmware file to be uploaded. Select the firmware file and click the UPDATE button.