| 摘要 |
PROBLEM TO BE SOLVED: To prevent mixing of a switching noise in a through output even when the power supply of a device is switched form an on-state to an off-state.SOLUTION: The audio data processing device includes: an IN terminal to which first audio data are input from the outside; a THRU terminal for outputting the first audio data to the outside; an FPGA(Field Programmable Gate Array) 22 for performing signal processing to the first audio data from the IN terminal; an OUT terminal for outputting second audio data subjected to signal processing to the outside; and a power supply switch 18. The FPGA 22 outputs the first audio data from the IN terminal to the THUR terminal as they are when the power supply switch 18 is in an on-state, and outputs the first audio data from the IN terminal to the THUR terminal as they are in accordance with the supply of power for operation even when the power supply switch 18 is in an off-state.SELECTED DRAWING: Figure 1 |
