| 摘要 |
PROBLEM TO BE SOLVED: To restore to normal operation even when a signal processing circuit is shifted to abnormal processing such as reckless driving processing and the like by performing judging processing of normal/abnormal of internal RAM data and performing initial starting of the signal processing circuit when data is abnormal. SOLUTION: A control section 1 inputs sound field control data such as echo sound/reverberation addition, graphic equalizer and the like and program data such as RAM data and the like from a storage section 2. A signal processing section 5 inputting program data from the control section 1 reads out internal RAM data from a specified address based on an internal RAM data output control signal, and outputs it to the control section 1. The control section 1 inputting the internal RAM data judges normal/abnormal of the internal RAM data, when the internal RAM data is abnormal, it is judged that the signal processing section 5 cannot perform normally operation processing, a reset signal and the like are outputted, initial control is performed, and program data such as sound field control data, the internal RAM data and the like are outputted to the signal processing section 5 again. |
