Environmentally AwareFeature-packed DSP Hearing Aid Amplifier

Updated Feb 23, 2010

Acoustic Scene Analysis

• Analyzes the characteristics of the acoustic scene in order to activate and control adaptive features

• Adapts to changing acoustic scene to optimize performance for each listening situation

• Allows the adaptive systems to work in synchrony instead of independently

4G Digital Adaptive Feedback Canceling

• Patented*, Industry leading 4th generation AFC

• Adapts continuously

• Excellent sound quality

• Ultra-fast adaptation speed

Impulse Sound Suppression

• Detects and suppresses sudden loud sounds

• Reduces the loudness of door slams, clattering dishes and cutlery

Wind Noise Reduction

• Detects wind using either one or two microphones

• Suppresses the unpleasant sounds caused by wind

12 Channel Environmental Noise Reduction

• Our advanced Layered Noise Reduction™ technology

• Twelve noise reduction channels gives great noise selectivity

Adaptive Directional Microphone

• Beam-forming adaptation to remove unwanted sounds from behind the wearer

• Auto-switching to omni-directional in wind and in quiet environments

• Optimization mode for open fittings

Dual Bi-quad Filters

• One filter each at the input and output for transducer compensation.

Digital Random Noise Generator for Tinnitus Therapy

• Can be used in mixed-mode applications: only masking, only hearing aid, or combination use

Event Data Logging

• User Events: Power on events, VC level (correlated with ambient noise level), program change, time in each program, low- battery events, history of the last 16 activations

• Statistics of all of the events are logged and are made available to the fitting software

Live Display

• Watch the performance of all the adaptive systems as they change – in real time!

• Useful for device testing.

• Display adaptive performance on the fitting system to reinforce the patient benefits

Short Group Delay

• 2.8 millisecond group delay means better sound quality in open fittings and large vent applications.

Amplifier Module

• RoHS compliant

• Reflowable

• Pad footprint same as our other amplifiers

OB

GN

D

SW

VC

2

TS

W

VC

TC

+

TC

-

DA

I

OA

VB

AT

nc nc nc M-

M+

MIC

1

MIC

2

RBAT CLK DAT

0.1

34"

[3.

40m

m]

0.226" [5.74mm]0.065"

[1.65mm]

typical pad size:0.017 x 0.043"

[0.43 x 1.09mm]

typical spacebetween pads:

0.007" [0.18mm]

nc = no connection

Environmentally AwareFeature-packed DSP Hearing Aid Amplifier

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