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Nureva HDL - Room Readiness Checklist

Nick Palmer (@nick) | Head of Technical Services

May 20, 2026 • 12 views

HDL Overview

The Nureva HDL series is the ideal solution for most medium and large meeting rooms.  Installation is quick and easy, and the built-in software automatically calibrates to the room and continuously adjusts to ensure great audio quality.
To get the best out of your HDL solution, check these simple steps to ensure the room is ready.
The HDL consists of 2 elements.
  • The Connect Module 2 which can be positioned anywhere, but typically will be close to the PC in the room

  • The sound bar(s) which need to be carefully positioned to provide optimal performance.

    The sound bar is 5' (1524mm) long with 16 downward facing microphones and dual speakers.


Room Size

It is not recommended to use HDL systems in spaces larger than the maximum size.  Doing so will reduce microphone performance and audio output levels will be reduced at the extremes of the space and people may struggle to hear.
  • HDL310 – Maximum recommended room size    9.1m x 9.1m
  • HDL410 – Maximum recommended room size    10.7m x 16.8m

Sound Bar Positioning

Incorrect positioning of the sound bar will cause poor performance.  We recommend reading the Nureva guide before purchasing the system.

https://support.nureva.com/docs/microphone-clearance-requirements-and-recommendations

Here are the key points to check
  • Height. 
    The bar should be positioned between 2.16 and 3.05m from floor level to ensure the microphones are focussed at sitting and standing height.  Too low reduces audio clarity when people are standing.  Too high reduces audio clarity when people are seated.
  • Wall position. 
    The bar should be at least 1m from a corner to prevent echo.

  • Sources of noise
    The sound bar should not be installed within 1m of a noise source (e.g. HVAC unit).  If the HVAC is blowing directly onto the sound bar, allow at least 1.5m clearance.
  • Sound bar clearance. 
    The HDL sound bar has downward facing microphones to detect both direct audio pickup AND audio reflected from the wall behind.  It therefore imperative that the bar is positioned flush on the wall with no obstructions immediately underneath.

    If the sound bar is to be mounted above a screen (or other obstruction), measure the depth of the screen from the wall (Y).  To calculate the height of the bottom of the sound bar (X), multiply this by 1.5.
    X = Y x 1.5

         So if a screens sits 10cm from the wall, the bottom of the HDL sound bar should be 15cm from the top of the screen.


    If the unit is mounted above an alcove (or window), there must be at least 15cm of clear wall underneath the sound bar.
    •      Wall construction.  The HDL works best when placed on a hard, flat surface.  Avoid glass as it is overly reflective.
    •      Acoustic panelling.  The HDL sound bar must never be mounted directly onto an acoustic panel.  Audio will be absorbed by the panel and mic pickup will be poor.  Either remove a section of acoustic panel to seat the sound bar – with sufficient clear wall underneath, or install a backboard on top of the acoustic panel

    Room Acoustics

    Prior to installation, we recommend that you test acoustic levels in the room. 

    Nureva have included tools for this in their iPhone App (available from  App Store).  By testing background noise and reverberation in the room, you can determine suitability of the HDL for your space.

    • Background noise. 
      Normal human speech is approx. 60 – 65dBA.  The HDL priorities human voice, partly by distinguishing the different dB levels.  Therefore, recommended background noise should be 40-45dBA for optimal performance.
    • Reverberation (echo). 
      The HDL includes sophisticated algorithms to eliminate echo.  However, if the room is too reverberant, the algorithms will not be able to compensate.

      T      ake a reverberation reading to determine whether echo is too high.  If Reverberation Time (RT60) levels are higher than 0.5 seconds, then acoustic treatment in the room should be considered before installing a HDL system





    Cable Runs

    The Connect Module 2 and sound bar are connected via a Cat6 Power over Ethernet cable, so connection is easy.  However, make sure you have the ability to run the cable to the sound bar installation spot.

    The CM2 can be mounted anywhere in the room, typically behind the screen or in a rack, allowing for simple cabling to the rest of the AV equipment.

    We strongly recommend using the cables included in the box and connecting the CM2 directly to the in room computer and not using a USB hub as this can introduce latency.

    Overheating

    The Connect Module 2 requires good ventilation to prevent overheating.  If it is mounted behind the screen, ensure it is at the edge to provide air flow.  Do not mount it so it is receiving heat output from other devices.
     
    If there are issues with any of the items on this list, please contact Ascentae support and we will endeavour to find a solution that works for you and your customer.  By doing this prior to installation we can ensure that both you and your customer get the best possible solution and minimal downtime and inconvenience.
     
     
     
     
     
     

    If in doubt, Ask Ascentae

    We are here to help.  If you have any questions or concerns about a solution, please contact the support team  - support@ascentae.com.

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