| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a speaker array apparatus which facilitates directivity control even if sound is outputted using audio signals in different frequency bands, and a signal processing method. <P>SOLUTION: The speaker array apparatus 1 outputs sound beams in a high-frequency band from a plurality of speaker units. Audio signals Sa related to sounds in all frequency bands, which are outputted from a speaker unit A21, and audio signals Sb related to sounds in all frequency bands, which are outputted from a speaker unit B22, are generated using signals processed by an HPF 52, and are rotated with the same phase in the high-frequency band, so that the audio signals Sa is in phase with the audio signals Sb in the high-frequency band and directivity control of sound beams can be facilitated. <P>COPYRIGHT: (C)2008,JPO&INPIT |
