Personal sound masking system

H - Electricity – 04 – R

Patent

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Details

H04R 3/02 (2006.01) G10K 11/175 (2006.01) H04R 5/033 (2006.01)

Patent

CA 2322809

A personal sound masking system (figure 3) for use in an individual workspace (10) provides an optimized acoustic background environment by delivering a sound masking signal that is speficically matched to the individual user's location and physical relationship to other nearby office. The sound masking system employs multiple loudspeakers (16) and multiple mutually incoherent channels in order to obtain a desired degree of diffuseness. A control module (figure 6) includes memory (80) that stores data representing a number of samples of a masking signal segment and generates different series of data values each representing a different masking signal. The sound masking system also includes a user-accessible volume control (20) to enable the user to adjust the sound level to achieve optimum sound masking in his or her individual workspace.

L'invention concerne un système personnel de masquage antibruit (3) utilisé sur un poste de travail individuel (10) et servant à créer un environnement de fond acoustique optimisé en émettant un signal de masquage antibruit qui est adapté de façon individuelle à la position de l'utilisateur et à sa situation par rapport à un bureau voisin. Le système de masquage antibruit utilise des haut-parleurs multiples (16) et plusieurs canaux incohérents entre eux, et ce pour obtenir le niveau désiré de diffusion. Un module de commande (fig. 6) comprend une mémoire (80) stockant les données qui représentent un certain nombre d'échantillons d'un segment de signal de masquage et qui génèrent différentes séries de valeurs de données dont chacune représente un signal de masquage différent. Le système de masquage antibruit comprend également un réglage de volume (20) accessible à l'utilisateur et permettant à ce dernier de régler le niveau de puissance sonore afin d'arriver à un masquage antibruit optimal à son poste de travail.

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