GN Resound Discover V series Technical Manual

GN ReSound as

Global Technical Operations

gto.gnresound.com

Lautrupbjerg 9 • DK-2750 Ballerup • Denmark

Phone: + 45 45 75 23 16 • E-mail: [e-mail]

Technical Manual

Discover V BTE

Doc. No. 0012680 rev. E

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Technical Manual for Discover V BTE

Subject Page

Description ..................................................................................................... 3

Typical performance data IEC 60118-7/ANSI (2cc coupler) ........................ 4-6

Part lists ...................................................................................................... 7-8

Diagram.......................................................................................................... 9

Microphone complete ................................................................................... 10

Receiver complete ........................................................................................11

Amplifi er .................................................................................................. 12-14

Instrument complete in housing ................................................................... 15

Instrument complete & programming cable ................................................. 16

Table of contents

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Technical Manual for Discover V BTE

Description

The Discover V BTE is a fully digital Behind-The-Ear (BTE) hearing instrument developed to set a new standard for
affordable and fundamental hearing care. The instrument offers a two band signal processing with Advopro Digital, which
suppresses dirsturbances caused by the user’s own voice and at the same time maintains amplifi cation of the
frequencies important for understanding speech. The clear sound, reliable design, easy battery change, long battery
lifetime and low battery warning indicator is all standard.

Discover V is available in beige, brown and grey colors.
No battery is required during programming - power is supplied via prog. cable CS45.
Battery type 13. Estimated average battery life 217 hours.

Key features :

4-band Wide Dynamic Range Compression (WDRC).

4-band shaping handles.

Feedback Management via Notch fi lter.

Long battery lifetime.

User-friendly design.

Audiogram + fi tting rule.

Digital Noise Clarifi er.

Clear, more comfortable sound.

For moderate to severe hearing loss.

Standard confi guration :

Volume control.

Telecoil.

Acoustic indicator for programme selection.

Low battery warning indicator.

Fitting requirements :

HI-PRO™ or NOAHLink™ interface.

NOAH software™ (2.x or 3.x).

Aventa™ fi tting software (1.5 or higher).

CS45 socket programming cables.

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Technical Manual for Discover V BTE

Typical performance data - IEC 118-7

No battery is required during programming - power is supplied via prog. cable CS45

Data in accordance with IEC 118-7. All sound pressure levels (dB SPL) refer to 20 μPa.

Unless otherwise is stated, data are based on a battery voltage of 1.35 V and impedance of 5 Ohm.

Tolerance Unit

Reference test gain (60 dB SPL input) at 1600 Hz 37 +/- 5 dB

Full-on gain (50 dB SPL input) Max. 57 +/- 5 dB

at 1600 Hz 47 +/- 5 dB

Maximum output (90 dB SPL input) Max. 126 +/- 4 dB SPL

at 1600 Hz 120 +/- 4 dB SPL

Total harmonic distortion at 800 Hz 0.5 +3 %

at 1600 Hz 0.3 +3 %

Telecoil sensitivity (1 mA/m input) Max. 88 +/- 6 dB SPL

Telecoil sensitivity (10 mA/m input) Max. 108 +/- 6 dB SPL

Equivalent input Noise w/o Noise reduction 25 +3 dB SPL

Frequency range (DIN 45605) 160-6000 Hz

Current drain 1.2 +20% mA

Typical Battery Life Time Battery type 13 217 hrs

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Technical Manual for Discover V BTE

Typical performance data - ANSI

No battery is required during programming - power is supplied via prog. cable CS45

Data in accordance with ANSI S3.22-1996. All sound pressure levels (dB SPL) refer to 20 μPa.

Unless otherwise is stated, data are based on a battery voltage of 1.35 V and impedance of 5 Ohm.

Tolerance Unit

Reference test gain (60 dB SPL input) HFA 40 +/- 5 dB

Full-on gain (50 dB SPL input) Max. 57 +/- 5 dB

HFA 50 +/- 5 dB

Maximum output (90 dB SPL input) Max. 126 +/- 4 dB SPL

HFA 122 +/- 4 dB SPL

Total harmonic distortion at 800 Hz 0.5 +3 %

at 1600 Hz 0.3 +3 %

Telecoil sensitivity (10 mA/m input) Max. 108 +/- 6 dB SPL

Telecoil sensitivity (10 mA/m input) HFA 100 +/- 6 dB SPL

Equivalent input Noise w/o Noise reduction 22 +3 dB SPL

Frequency range 170-6000 Hz

Current drain 1.5 +20% mA

Typical Battery Life Time Battery type 13 217 hrs

Reference test gain settings

Gain 34 34

Reference test gain settings

Gain 41 41