| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital still camera reducing a noise of a lens etc. in photographing a moving image. SOLUTION: Sound signals obtained from a sound collecting microphone 102 and a noise collecting microphone 103 are inputted into amplifiers 202 and 204 via filters 201 and 203, respectively. In this case, the filter 201 of the microphone 102 is set to have a frequency characteristic suitable for a sound, and the filter 203 of the microphone 103 is set to have a frequency characteristic suitable for a noise generated from a zoom lens 101. Also, gains of the amplifiers 202, 203 are controlled to a proper level by a gain control circuit 205 in a DSP, and are operated by an operating device 206. In the operating device 206, a signal of the microphone 103 side is subtracted from a signal inputted from the microphone 102 side. COPYRIGHT: (C)2005,JPO&NCIPI |
