| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology to output an input sound signal without clipping.SOLUTION: A compressor control unit 103 inputs predetermined compression control information to a compressor 104 according to a microphone sound volume amplifying an output signal of a microphone 10, if the sound signal from the microphone 10 is input, the compressor 104 compares the signal level of the voice signal and a predetermined threshold value based on the compression control information according to the microphone sound volume instructed from the compressor control unit 103, carries out compression processing following a compression mode determined according to the microphone sound volume, and outputs it. |
