Sound pick-up and reproduction system for a headset in a...

Details Sound pick-up and reproduction system for a headset in a... Sound pick-up and reproduction system for a headset in a...

H - Electricity

04

R

H04R 3/04 (2006.01)

Patent

CA 2214094

A sound pick-up and reproduction system for a headset in a noisy environment, comprising, on the sound pick-up side, at least one microphone (20) followed by a sampling device (25), a decimation unit (26) and a device (27) for compensating signal deformation occurring in the upstream sound chain, and, on the reproduction side, an interpolator (5) followed by a device (6) for compensating the operator's hearing deficiencies, and an active noise reduction loop (10, 11, 7, 12, 13, 14).

Le système de l'invention comporte un système de prise de son et d'écoute pour casque en ambiance bruitée, et il est caractérisé en ce qu'il comporte, du côté de la prise de son, au moins un microphone (20) suivi d'un dispositif d'échantillonnage (25), d'un décimateur (26), d'un dispositif (27) de compensation de déformations de signal survenues dans l'ensemble de la chaîne acoustique amont, et du côté de l'écoute, un interpolateur (5) suivi d'un dispositif de compensation des défauts d'audiométrie de l'opérateur (6) et d'une boucle de réduction active de bruit (10, 11, 7, 12, 13, 14).

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