| 摘要 |
PURPOSE:To enable ant operator to easily recognize the frequency characteristic, the level in each band after correction with the given frequency characteristic, and operating or operated states of plural audio signal sources by a display device. CONSTITUTION:The frequency characteristic given to a signal transmission circuit, signal levels of respective bands obtained in the output of the signal transmission circuit, and respective operating or operated states other than signal levels of at least inputtable audio signals of plural audio signal sources are selectively displayed on a matrix display device 26a capable of two-dimensional display. Thus, various display is possible, and the display is sufficiently easy to see. The display part is shared, and at least one of plural audio signal sources and an equalizer device can be unified. Operating or operated states of various audio signal sources are visually confirmed, and the equalizer characteristic is most suitably selected and adjusted in accordance with the confirmed ones. |
