Audio apparatus

H - Electricity – 04 – R

Patent

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Details

H04R 3/12 (2006.01) H04R 1/40 (2006.01)

Patent

CA 2614549

An audio apparatus inputs audio signals oriented toward a plurality of positions to speakers which output sound toward the respective positions with narrow directivity, including a table storage section which stores a table for registering the plurality of positions and volume information showing set sound levels of sounds directed toward the positions in correspondence with each other; a signal processing section for adjusting output levels of respective audio signals in accordance with set level control values; and a signal processing control section which reads the volume information for the plurality of positions by reference to the table and which sets, in the signal processing section, the level control values for the audio signals directed to the respective positions in accordance with the read information.

Selon la présente invention, un dispositif audio envoie un signal audio pour une pluralité de positions à un haut-parleur afin de produire un son à directivité étroite pour la pluralité de positions. Le dispositif audio comprend : une unité de stockage de table contenant une table pour enregistrer la pluralité de positions et les données audio indiquant un volume fixé du son aux positions respectives, une unité de traitement de signal qui règle un niveau de sortie du signal audio pour les positions respectives selon la valeur de commande de niveau fixée, et une unité de commande de traitement de signal qui lit les données de volume sonore pour la pluralité de positions par référence à la table et établit une valeur de commande de niveau de chaque signal audio dans l~unité de traitement de signal selon les données lues.

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