How does autocalibration work?

Nureva^® audio conferencing systems include a powerful autocalibration process that runs continuously in the background. No user action is required to start or maintain the autocalibration process and the system remains usable as it auto-calibrates.

Autocalibration of a Nureva audio system involves the device outputting a low-level signal that mimics pink noise. Using advanced digital signal processing, reflections of this signal are picked up by the system to adapt to changes in the room (such as the number of people or configuration of furniture). These systems take only a few minutes to gather calibration data for significant room changes and they continue to fine-tune over time. The autocalibration signal is quiet, resembling a hissing sound coming from the speakers, and it’s always present when the unit is switched on.

The autocalibration sound mask

Although not its primary function, the autocalibration signal may also act as a sound mask to hide distant speech and noises outside the meeting area that could interfere with the conversation.

There may be a perceived difference in the loudness of the autocalibration signal from room to room, depending on the background noise or size of the space. A smaller room with quieter background noise may cause the autocalibration signal to be perceived as louder or more prevalent.