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Speech Intelligibility with a Bone Vibrator
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In: http://ftp.rta.nato.int/public//PubFullText/RTO/MP/RTO-MP-HFM-123///MP-HFM-123-08.pdf
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Abstract:
The FELIN project (Foot soldier with Integrated Equipment and Connectivity) of the French DGA (Délégation Générale à l’Armement – French Military Procurement Agency) aims at gearing tomorrow’s foot soldier with a “flexible and manoeuvering ” equipment. Among requirements, the foot soldier will have to be fitted with a communications headband operating through bone conduction. The main advantage of listening through bone conduction is that it allows for the transmission of information to the soldier, while leaving the soldier’s ears free to perceive the surrounding environment and use sound cues for orientation in space. Furthermore, this device is light, not bulky and quite comfortable. The laboratory assessment performed aimed at comparing voice intelligibility scores of a prototype bone conduction device with the scores obtained by Peltor’s ® militarized COMTAC-type headset. This latter device is a hearing device, i.e. fitted with two microphones, left and right, to reproduce a spatial hearing capability. It is thus possible to compare these two technologies, which both allow for orientation in space using acoustic cues. Tests were performed in silence and in operationally realistic noise conditions (reproducing the noisy environment inside an armoured vehicle). Voice material is made of nonsense CVC words (Consonant –
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URL: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.215.291
http://ftp.rta.nato.int/public//PubFullText/RTO/MP/RTO-MP-HFM-123///MP-HFM-123-08.pdf
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