| 摘要 |
In digital mixers and other signal processing apparatus, visual confirmation of signal transmission paths is difficult. A signal processing apparatus is provided with digital signal processing and control means 3, including a DSP and CPU, between input means 1 a through 1 f and output means 2 a and 2 b. The signal processing and control means 3 is connected to operation means 4, including a plurality of operation buttons, and to display means 5, including a plurality of display devices. The signal processing and control means 3 includes a plurality of mixer means 26 a through 261 and display control means 5 a. A plurality of operation buttons are used to form a plurality of signal transmission paths. A plurality of display devices provided in correspondence with a plurality of operation buttons, have a function to display operation of the operation buttons, and in addition are also used to display signal transmission paths. A plurality of display devices associated with a signal transmission path are lighted in sequence along the signal transmission path.
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