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GA3222 Datasheet

  • GA3222

  • Advanta-TM ADRO-TM - Enabled DSP System

  • 21頁

  • GENNUM

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GA3222
Advanta鈩?ADRO鈩?Enabled DSP System
GA3222 Preliminary Data Sheet
Features
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ADRO鈩?amplification technology
adaptive directional microphone system
adaptive feedback canceller
noise management
available optional turn-key software
high fidelity audio CODEC
20-bit audio precision
95dB input dynamic range with HRX鈩?Headroom
Extension
drives zero-bias 2-terminal receivers
4 analog inputs
4 fully configurable memories with audible memory
change indicator
2 memory select pads
volume control with configurable adjustment range
8kHz bandwidth
optimized programming speed
thinSTAX廬 packaging
Description
Advanta鈩?is Gennum鈥檚 premium high-end product with
ADRO technology from Dynamic Hearing implemented
on the Voyageur鈩?platform. The flexibility and
sophistication of ADRO combines with the precision
and advanced capabilities of Voyageur to deliver
unprecedented sound quality, comfort and audibility to
hearing aid wearers.
ADRO is fitted via direct in-situ measures to ensure a
fast, customised fitting. ADRO uses statistical analysis
and gain customized in 32 independent channels, so
that the sound level is always optimized to be within the
comfortable dynamic range of the listener.
Advanta's adaptive directional microphone technology
provides added benefit in background noise. Advanta
automatically changes from directional to
omni-directional in different environments as needed.
Advanta has an adjustable threshold criterion and
becomes omni-directional in wind noise, and in quiet. In
the directional mode, the signals from two
omni-directional microphones are combined and the
null is automatically moved to optimise noise rejection.
The adaptive directional microphone features a flat
frequency response, so that no additional frequency
compensation is required. It is easily configured for
different microphone placements, and can be calibrated
to match multiple microphones.
The advanced feedback canceller provides increased
maximum stable gain. Additionally, it features rapid
adjustment for dynamic feedback situations.
Advanta is available with the Configure鈩?fitting
software, so named as it allows the customer to quickly
configure the hearing aid. Configure features a
stand-alone database supporting multiple sessions,
automatic interface detection and an intuitive fitting
procedure which achieves fast and accurate fittings. A
software interface library for customers wishing to
integrate support for Advanta into existing fitting
software is also available.
Other configurable options on Advanta include: fixed
directional microphone, internal noise reduction with
user programmable settings, direct audio input, telecoil
input, calibration and test modes supporting standard
IEC/ANSI procedures, adjustable input selection, and
four listening programs.
thinSTAX Packaging
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Hybrid typical dimensions:
0.215 x 0.124 x 0.065in
5.46 x 3.15 x 1.65mm
34477 - 0
February 2006
1 of 21
www.gennum.com

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