The ExSilent Q comes with four channels and six bands, which include adaptive noise reduction. The Q is equipped with an adaptive feedback management and 4 programmable programs for a range of different sound environments.

Right: ExSilent offices in Amsterdam

Now, in addition to the Q with 4 channels,  ExSilent has developed the Q8 device which comes with 8 channels and 12 bands. While it  also includes standard adaptive noise reduction, it is further provided with data logging;  a feature which can store daily usage and  be analysed during examinations, in order to improve the hearing experience.

Like Q, the Q8 facilitates an improved adaptive feedback management and 4 programmable memories for different sound environments.

But it also  incorporates the new IRIS (Individual Resonance Improvement Shifter) to optimise the compensation of the loss of the open ear canal resonance.



Resonator II (Detail) by Eric J. Heller. "In this image, a quantum wave builds up in a resonant cavity between the straight and curved walls, when waves are arriving from below. Most of the wave energy is reflected back, but a surprisingly large fraction of it gets through the tiny hole if the wavelength is just right to make the cavity resonant. Prof. Robert Westervelt and his research group invented the 'Westervelt resonator' around 1995 at Harvard University, for the purpose of investigating electron waves... The whole device is just a few microns across, or smaller than a bacterium."