Directional Sound Processing

Role
Improves SNR by reducing the amplification of sounds coming from behind the user.

End user benefit
Improves speech intelligibility in noisy situations.

Directionality uses the sound collected by two microphones to enhance the amplification of sounds coming from the front more than sounds coming from behind

Fixed Directionality

Fixed directionality is the simplest directional option and provides a nonvarying hypercardioid pattern. In this setting, signals coming from behind and the sides are reduced in order to enable the user to better concentrate on signal from the front. The directional characteristics are constant and static. If selected, this type of directionality is always ‘on.’

Adaptive Directionality

Adaptive Directionality is similar to Fixed Directionality, but Adaptive Directionality dynamically changes the directional pattern to reduce the loudest sounds from the rear. This is preferable to Fixed Directionality for users often in environments with multiple, moving, or simultaneous noise sources.

Integrated Wind Noise Management™

Adaptive directionality also features classic wind noise reduction for devices without Wind Guard™.

Multiscope Directionality

Multiscope Directionality is an advanced form of Adaptive Directionality that allows the width of the directional beam to be set in the fitting software, in effect making the area of focus larger or smaller.

MULTISCOPE DIRECTIONALITY SPECIFICATIONS
SETTING	MONAURAL FITTING APPROX. ANGLE OF FOCUS	BINAURAL FITTING APPROX. ANGLE OF FOCUS
Narrow
Medium
Wide

Autoscope Directionality

Autoscope is an automated form of Multiscope where the beamwidth adjusts depending on the strength of the speech signal in front of the user.