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
End