CIRCUIT ARRANGEMENT FOR DETECTING SIGNAL BREAK

PROBLEM TO BE SOLVED: To provide a circuit arrangement for detecting a signal break in an audio signal, which is convienient for users and flexibly used in various fields, by composing the same of a rectifier element with an audio signal provided to its input side, and an integrator element with the output signal of the former element provided to the same. SOLUTION: A control unit 6 for comparing the output signal of an integrator element 5 with a preset threshold value is provided, the control unit 6 controls a switching means 7 at intervals of preset lengths, the switching means 7 sets the output signal of the integrator element 5 to a preset signal standard value and, if the output signal of the integrator element 5 is smaller or larger than the threshold value for a specified period, the control unit 6 detects a signal break.