Headset for separation of speech signals in a noisy environment

Details Headset for separation of speech signals in a noisy environment Headset for separation of speech signals in a noisy environment

G - Physics

10

K

G10K 11/16 (2006.01)

Patent

CA 2574793

A headset (12) is constructed to generate an acoustically distinct speech signal in a noisy acoustic environment. The headset positions a pair of spaced- apart microphones (32-33) near a user's mouth. The microphones each receive the user~s speech, and also receive acoustic environmental noise (267). The microphone signals, which have both a noise and information component, are received into a separation process (355). The separation process generates a speech signal (356) that has a substantial reduced noise component. The speech signal is then processed for transmission (368). In one example, the transmission process includes sending the speech signal (370) to a local control module (14) using a Bluetooth radio (27).

La présente invention concerne un casque fabriqué de façon à générer un signal vocal acoustiquement distinct dans un environnement acoustique bruyant. Ce casques place une paire de microphones espacés près de la bouche de l'utilisateur. Ces microphones reçoivent chacun la voix de l'utilisateur et reçoivent également le bruit environnemental acoustique. Les signaux de microphone, qui possèdent une composante de bruit et d'information, sont reçus dans un processus de séparation. Ce processus de séparation génère un signal vocal qui possède une composante de bruit sensiblement réduite. Le signal vocal est ensuite traité en vue d'une émission. Dans un exemple, le processus d'émission consiste à envoyer le signal vocal à un module de commande locale utilisant une radio Bluetooth.

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