How to explore the unified coverage map

HDL410 system with Nureva® Console cloud
Last Updated: October 18th, 2023

What is the unified coverage map?

When an HDL410 system calibrates it determines the location and orientation of each microphone and speaker bar that is in a room. A coverage map is generated that represents the area between each microphone and speaker bar. The coverage map demonstrates a field of virtual microphones and where sound is picked up within the room. Sound location data is collected continuously and is not dependent on an audio or video conference for collection.

As the HDL410 system captures sound location data the coverage map updates to show any changes in the data. The updates occur every minute and present the last five minutes of sound location data. 


  • 12:00 pm - Nureva Console cloud is first viewed showing data from 11:55 am to 12:00 pm
  • 12:01 pm - The coverage map is updated showing data from 11:56 am to 12:01 pm
  • 12:02 pm - The coverage map is updated showing data from 11:57 am to 12:02 pm
  • Updates continue every minute while the coverage map is viewed

The maximum area represented by the coverage map is 35' x 55' (10.7 x 16.8 m) which is the default area. To better represent the actual room size the coverage map area can be changed. Adjusting the coverage area to the actual room dimensions helps refine the sound location data and provides a more accurate coverage map. This is useful in helping ensure that sound picked up from outside of the room is not included in the data used to create the coverage map. 

Viewing the coverage map

To view the coverage map the HDL410 system must be powered up and enrolled into Nureva Console cloud. 

  1. Launch Nureva Console in a browser and sign into your account
  2. From the Rooms dashboard choose a room with an HDL410 system

The dashboard for the selected room displays a view of the coverage map. This provides a quick glance at the system setup and sound location data that has been captured in the past 5 minutes. Select the Coverage map button on the navigation side menu or click the Edit room size button to view the detailed coverage map.

After the coverage map opens the sound location data collected over the past 5 minutes is displayed on the map. When an HDL410 system is set up for the first time sound location data may not be available. Walking around the room perimeter and speaking will provide a source for sound location data to be collected and displayed.


Adjusting room dimensions

The blue circles on the coverage map indicate where sound location data is being generated within the room. Two options are available for adjusting the room dimensions.

  1. Move the drag handles on the coverage map to the correct room dimensions
  2. Use the room dimension fields on the right-hand side of the dashboard

As the room dimensions are adjusted, the coverage map and room dimensions will update to match the input.  As more sound location data is created in the room the easier it is to adjust the room size accurately. When the room dimension adjustments are complete press the Apply button.

Once the edits have been applied the coverage map will return to a zoomed-in view and exclude any sound location data outside of the updated dimensions. The room dimensions can be edited again at any time by pressing the Edit room size button.


Clearing the sound data

The displayed sound data updates every minute and presents the last five minutes of sound location data. To reset the coverage map and populate new data press the clear sound data button. After pressing the button the coverage map will clear the data and new data will start to populate. The data populates every minute.

Coverage map before clearing the data

Coverage map after clearing the data


Zones on the coverage map

What is a zone?

A zone defines an approximate area within a room. A maximum of 8 zones can be created on the coverage map. The data to map these zone as well as the indication of when a sound is detected within each zone can be sent through local integrations to enable 3rd party camera or control systems to automate camera switching.

For example, zone A on the coverage map could be created at the front of the room where presentations are typically given, and a second zone B could be created over the seating or audience area. Camera A in the room could be configured with a view of the presentation and Camera B with a view of the audience. When sound is detected within zone A, data is sent via the camera zone API and could automate camera switching to Camera A.

NOTE: Zones created on the coverage map only enable zone data to be sent. Without setting up local integration, the zones cannot independently configure camera switching.

Creating a zone

Open the zones accordion on the coverage map page and press the create zone button. 

A zone will appear at the center of the coverage map. The zone can be dragged to reposition the zone anywhere within the room.

Move the drag handles to adjust the zone to the desired size. Walking around and speaking in the corresponding area of the room will help confirm the zone position and size. As sound location data is collected it will be displayed on the coverage map. The displayed locations of sound sources within the room allow for easy zone creation.

The zone name can be edited to allow for a relevant zone name to be given to each zone.

When the zones have been created, press Apply to ensure the zone configuration is saved. Zone changes cannot be applied if the zones:

  • Are positioned outside of the room
  • Are overlapping
  • Do not have a name
  • Have the same name
  • Name exceeds 50 characters

Deleting a zone

From the coverage map dashboard:

  • Open the zone accordion
  • Select the zone on the coverage map that you would like to delete
    • This zone will become active
    • The drag handles and name editing become available
  • Press the Delete zone button
  • Press Apply to ensure zone changes are applied to the room.

 Coverage map overview

  1. Sound location data
  2. Drag handles
  3. Clear sound data
  4. Room dimension input field with quick buttons to increase and decrease room size
  5. Room dimension units available in Feet and Meters
  6. Apply and cancel buttons
  7. Edit room size is available only after a change to the room size has been applied
  8. Zone controls

Ensure accurate room data

Nureva audio conferencing systems have two types of calibration – automatic calibration and recalibration. Automatic calibration is a continuous process and occurs while the system is powered. Recalibration is a process that helps ensure optimum sound quality and accurate sound location data after a change in a system or room configuration.

If the HDL410 system was powered up for the first time in a different location a recalibration should be completed once installed in the room.

Nureva Console

  • Navigate to the device settings Console client or cloud
  • Choose Audio processing
  • Scroll to Recalibrate and click on Start
  • The calibration will be complete when the calibration sound stops

Remote control

  • Press the F4 button on the remote five times in quick succession
    • A single blue LED will start flashing on the microphone and speaker bar
  • Press the Mute button on the remote
    • The system will enter the recalibration sequence and the LED will alternate between solid red and blue lights
  • The calibration will be complete when the calibration sound stops


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