Instructions for autocalibration and fast calibrating your HDL300 system.
The HDL300 system has two types of calibration – automatic calibration and fast calibration. Automatic calibration is a continual background process that occurs while the HDL300 system is powered. Fast calibration is a process that is done when the unit is first unboxed from the factory and powered-up. Additionally, fast calibration may also be initiated through a remote control button sequence or through Nureva Room Manager.
Ideally, the user or installer does not need to perform any calibration procedures on the HDL300 system as it is done routinely by the system and is hidden to the user. An optional fast calibration may be performed, although in most cases it is not necessary. To ensure the unit has adapted quickly to any changes to the environment, a fast calibration can be performed in a new installation, if the unit has been moved or the room configuration was changed significantly.
Autocalibration is a continuous process and occurs while the HDL300 system is powered. No user action is required to start or maintain the autocalibration process. The system usually takes a few minutes to gather sufficient calibration data and continues to fine-tune over time. This process does not affect the functionality and the system is usable during autocalibration.
The HDL300 system will recalibrate to accommodate changes in the room such as the number of people or the configuration of furniture. The system does not need to be recalibrated if it is moved to another room as it will autocalibrate to the new space once it is plugged in.
Fast calibration is a process that calibrates the system within seconds. It is done automatically when the unit is first unboxed and powered-up. Additionally, fast calibration may be initiated manually through a remote control button sequence or Nureva Room Manager.
The user or installer may perform a fast calibration manually at any time, although this is not necessary as the system will autocalibrate on a continuous basis. As the name implies, fast calibration has the advantage of the speed at which the calibration is done (seconds vs. minutes). Fast calibration is usually used when the room configuration changes significantly (e.g., furniture is moved around or there is a significant change in the number or location of people in the meeting room) and the user wants calibration to be done quickly rather than waiting for the system to configure the system for optimal audio quality. The fast calibration procedure will take approximately 20 seconds to complete and will ensure that the system has adapted optimally to the room. As the fast calibration is done automatically when the unit is first unboxed from the factory and powered-up, we recommend having the unit first installed in the room (as it would be positioned for the audio conference) before it is plugged in. If the HDL300 system is plugged in before it is positioned and installed to the final location in the room, the calibration parameters can take the autocalibration several minutes to readapt. The HDL300 system will still work but will not reach optimal performance until the autocalibration has taken full effect. In this case, a fast calibration can be triggered through the remote control button sequence or Nureva Room Manager to ensure optimal audio experience immediately.
Fast calibration can be done while the HDL300 system is in a call. However, both parties will not be able to hear each other while the fast calibration is taking place (both the microphones and speakers are temporarily disconnected from the call). The call will resume after fast calibration is complete.
During the fast calibration, the LED will alternate between solid red and solid blue lights while generating a calibration signal that will sound like static. After 15 to 20 seconds the static sound will stop and the LED lights return to a normal state. Fast calibration will be complete.
During fast calibration with external speakers, the LED indicator will flash for 15-20 seconds and the calibration signal on the external speakers will only be heard for the first 7-10 seconds. The configuration with external speakers only supports monophonic (mono) sound and only needs half the time to complete the calibration process.
Fast calibration should be performed with the HDL300 system installed in the room so that the system can calibrate to the space. Do not perform fast calibration and then re-position the HDL300 system or furniture. Make sure there are no other audible sound sources in the room other than normal ambient noise (e.g. no music playing, no people talking).
The following steps are required to perform fast calibration through Nureva Room Manager:
Below are the steps for initializing the manual fast calibration through the remote control.
Last updated: January 31, 2019