ERROR DETECTION METHOD FOR SOUND SIGNAL

摘要

PURPOSE: A method for detecting a discrimination error of a voice signal is provided to prevent a noise by detecting a voice discrimination error and switching a voice state and outputting the switched voice signal when the voice discrimination error is occurred on the air. CONSTITUTION: The voice state(mono, stereo, two languages) of a pilot demodulation output is repeatedly checked in a predetermined period(Tsec)(S1-S3). If the repeatedly checked predetermined periods are identified thereto, a voice in accordance with an output state is outputted by a control of a micro computer. If a change of a state is detected in the predetermined period(Tsec), the state is decided as an error(S4), and a voice in accordance with an output state is outputted(S7) by inputting commands for a compulsory conversion and a maintenance of the current state to an output switching device by the micro computer, thereby switching a voice state(S5-S6).