| 摘要 |
An audio signal distortion compensation apparatus is provided to compensate for the distortion of the audio signal efficiently by compensating for distortion due to cut-off operation of an audio signal with a DC level converter and a low pass filter. A DC level converter(20) and a low pass filter(21) compensate for the distortion of an audio signal by cut off operation of an automatic gain limiter(13). The DC level converter and the low pass filter are installed at the audio input terminal of the front of an analog/digital converter(10). The DC level converter converts the audio signal more than a set up base level differently with the automatic gain limiter into DC value. The low pass filter removes the high frequency component from the audio signal by low-passing the transformed DC value. The dc level converter and the low pass filter are implemented with an integrated circuit. |
