Cochlear SPrint Sound Processor Información técnica descargar pdf (Pagina 41)

CLINICAL GUIDANCE | SECTION ONE

Whisper is used alone and in combination for the SmartSound Everyday

environment and also in combination for the SmartSound Music environment.

See section 1.13 SmartSound for more information.

References

1. McDermott, H.J., Henshall, K.R., McKay, C.M. (2002). Beneﬁts of syllabic input

compression for users of cochlear implants. J AmAcad Audiol. 13, 14-24.

2. Cochlear Limited. (2002). Nucleus ESPrit 3G Whisper setting, White paper. Cochlear Ltd.,

Sydney, Australia.

3. Dawson, P.W., Decker, J.A., Psarros, C.E. (2004). Optimizing dynamic range in children

using the Nucleus cochlear implant. Ear & Hearing 25, 230-41.

4. Cochlear Ltd. (2007). Nucleus Freedom for previous generation implants, Implantable

Hearing Solutions. 1, 7-11.

1.12.3 Focus (using Beam

™

)

The SmartSound

™

Focus environment uses Beam, a state-of-the art adaptive

beamformer. Focus utilizes spatial input processing and an intelligent noise

cancelling algorithm to automatically adjust microphone directionality

depending on the presence and type of noise sources. Beam is designed to

attenuate the sensitivity in the direction of interfering noises to the sides

and behind the listener, while maintaining maximum sensitivity to the

front. Beam is adaptive, so if the noise source is moving dynamically, so

too does the direction of maximum attenuation. Beam is an adaptive two-

stage beamformer, developed by researchers under the direction of Prof Jan

Wouters at the KatholiekeUniversiteit of Leuven (KUL), Belgium

1,2,3,4

. Focus

is only available with the Freedom

™

and CP810 sound processors. It is not

recommended for use in quiet or windy environments.

Figure 12: Speech

perception scores

with Nucleus

Freedom.

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 77 78

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