Multi-source surround audio apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorSatoshi Endo
Life of this patent
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Abstract
A DVD audio signal reproducer 132—2 reproduces a DVD to generate a DVD reproduced audio signal S5.1c, S2c. A reproduced signal determiner 134 determines whether the DVD reproduced audio signal is a 5.1-channel digital surround audio signal or a 2-channel digital audio signal, thereby generating a determination signal SW. If the determination signal SW indicates that the DVD reproduced audio signal S5.1c, S2c is a 5.1-channel digital surround audio signal S5.1c, a digital surround effector 160 converts the DVD reproduced audio signal S5.1c to a 2-channel digital surround audio signal S2cd.
Claims3
A multi-source surround audio apparatus for, in accordance with an instruction from a user, performing selective surround sound reproduction of audio signals which are inputted from a plurality of sound sources including a DVD, the apparatus comprising:
- sound source detection means for detecting a sound source of an inputted audio signal based on the instruction from the user;
- DVD audio signal reproduction means for, if the detected sound source is a DVD, reproducing the DVD to generate a DVD reproduced audio signal;
- reproduced signal determination means for determining whether the DVD reproduced audio signal is a 5.1-channel digital surround audio signal or a 2-channel digital audio signal and generating a determination signal indicating a result of the determination;
- and
- a digital surround effector for, if the determination signal indicates that the DVD reproduced audio signal is a 5.1-channel digital surround audio signal, converting the DVD reproduced audio signal to a 2-channel digital surround audio signal.
Dependencies are inferred from the claim text.