Audio signal processing device and audio signal processing method

摘要

There is provided an audio signal processing device for setting, upon outputting audio signals from a left speaker and a right speaker each having an identical amplitude-frequency characteristic and a phase characteristic, and from one center speaker arranged between the left speaker and the right speaker, listening points between the left speaker and the center speaker and between the right speaker and the center speaker, the audio signal processing device including an inverse filter processing unit configured to provide inverse characteristics of an amplitude-frequency characteristic and a phase characteristic of the center speaker, and a speaker characteristic adding processing unit configured to correct the amplitude-frequency characteristic and the phase characteristic of an audio signal of the center speaker that have been processed by the inverse filter processing unit in a manner that they correspond to characteristics of the left speaker and the right speaker.

主权项

1. An audio signal processing device for setting, upon outputting audio signals from a left speaker and a right speaker both having same amplitude-frequency characteristic and a phase characteristic, and from one center speaker arranged between the left speaker and the right speaker, listening points between the left speaker and the center speaker and between the right speaker and the center speaker, the audio signal processing device comprising:
an inverse filter processing unit configured to provide inverse characteristics of an amplitude-frequency characteristic and a phase characteristic of an impulse response of the center speaker; and a speaker characteristic adding processing unit configured to correct the amplitude-frequency characteristic and the phase characteristic of an audio signal of the center speaker that have been processed by the inverse filter processing unit in a manner that the processed amplitude-frequency characteristic and the processed phase characteristic correspond to characteristics of the left speaker and the right speaker.