| 摘要 |
When a voice input is detected as being applied to a directional microphone, sounds output from selected loudspeakers from among a plurality of loudspeakers, which otherwise would obstruct the speech recognition process, are attenuated, and sound signals supplied to the selected loudspeakers are combined with sound signals supplied to the other loudspeakers, and the combined sound signals are supplied to the other loudspeakers.
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