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OpenSound Navigator

OpenSound Navigator is sound processing that reduces 

noise while preserving distinct speech from all directions. 

This is enabled by the revolutionary Multiple Speaker Access 

Technology (MSAT).

OpenSound Navigator employs an extremely fast three-step

process:

• 

Analyse: Scans the full 360° sound environment more  

than 100 times per second to identify noise and separate  

it from speech.

• 

Balance: Rapidly reduces the levels of loud noise coming 

from specific directions, while preserving speech.

• 

Noise Removal: Rapidly attenuates remaining diffuse  

noise, even between individual words.

Creating an open sound experience

A.  OpenSound – Transition:

The control lets you choose how much help is needed in the 

stage between simple and complex environments. In other 

words, how early in this transition will your client want the 

sound processor to help more. You can choose between a 

Low, Medium, High, and Very High amount of help. As an 

example, when choosing High, the sound processor will step 

in more aggressively to reduce unwanted sounds, even if the 

environment is not yet complex as compared to a Medium 

setting.

B.   Noise reduction controls:

Adjustments to noise reduction are divided into Noise 

Reduction for Simple and Complex listening environments. 

As default, no noise reduction is applied in Simple situations 

and a medium level of reduction is applied in Complex 

situations. Adjustments are made by clicking the +/- buttons. 

Noise reduction choices are displayed visually in the speech 

waveforms.

Analyse

Noise Removal

Balance

OpenSound Navigator transition choices are displayed visually on the 

Transition bar above the control panel and in the illustration with the head 

and sound sources. Here you will see the background sounds are reduced 

in size as more help is applied.

A

B

D

C

B

C.  Noise reduction on/off:

By default, noise reduction is on because it is an integral 

part of the open sound experience, but it can easily be 

deactivated if needed by unchecking the box on the lower 

left corner.

D.  Directionality setting:

In addition to the four OpenSound Transition settings 

for the Open Automatics, you have two conventional 

directionality settings available, Full directional and Omni 

settings. Omni is recommended if the sound processor is 

used on a softband on the forehead.

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