Patent ID: 7187775

Claim:
A sound recording apparatus comprising: a microphone input terminal having right and left signal channel terminals and a ground terminal, wherein one of the right and left signal channel terminals is connected to the ground terminal when a monaural microphone is connected to the microphone input terminal; a recording section which records, in a recording medium, right and left audio signals input from the microphone input terminal; a microphone power supply section which supplies power to a microphone connected to the microphone input terminal via the right and left signal channel terminals and the ground terminal; a detection section which detects whether or not a voltage of the one of the right and left signal channel terminals is substantially equal to a ground voltage, and provides a detection result, wherein the detected voltage of one of the right and left signal channel terminals is a voltage of the power supplied to the microphone resistance-divided by a power supply resistance and an internal resistance of the corresponding one of a right and left channel of the microphone when a stereo microphone is connected to the microphone input terminal; and a control section which controls a recording operation of the recording section in accordance with the detection result.