AUDIO SIGNAL PROCESSING UNIT

摘要

PROBLEM TO BE SOLVED: To attain a functional test even when an audio signal is not inputted by connecting a signal generator or the like to the outside of the processing unit so as to give data having been written in a data storage means by means of a control means into a signal processing means. SOLUTION: A signal processing means 1 applies digital processing to an audio signal. A data transmission means 3 sends data stored in a data storage means 2 to an input signal changeover means 5. A timing generating means 4 receives a synchronizing signal externally and gives a timing signal required to send data from the data transmission means to the data transmission means 3. An input signal changeover means 5 sends the signal outputted from the data transmission means 3 to the signal processing means 1 in place of an audio input signal entered externally. Furthermore, a control means 6 controls the data storage means 2, the timing signal generating means 4 and the input signal changeover means 5.