| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise included in recorded audio data. SOLUTION: In a ROM 22, sample data for which the noise generated from a camera main body is sampled are stored. Audio recorded from a microphone 7 is digitally converted to the audio data in an A/D converter 28 and tentatively stored in a RAM 21. The audio data inside the RAM 21 and the sample data inside the ROM 22 are sent to a comparator 33 and compared. When the data that match with the sample data are discriminated inside the audio data, the matching sample data are inverted in an invertible amplifier 36, composited to the audio data and recorded in a memory card 11. COPYRIGHT: (C)2004,JPO |
