发明名称 Recording and reproducing apparatus for audio signal using semiconductor memory
摘要 A recording and reproducing apparatus for audio signal including a low pass filter removing high frequency components of a predetermined frequency or more of an audio signal having a wide band, an A/D conversion circuit converting the audio signal from the low pass filter into a digital signal, a storing means for storing to record a predetermined period of time of the digitized audio signal from the A/D conversion circuit, a D/A conversion circuit converting the audio signal read from the storing means into an analog signal, a tone control circuit conducting a frequency correction on the audio signal, and a control circuit controlling the tone control circuit such that with respect to the audio signal recorded in the storing means or the audio signal read from the storing means low frequency components of the audio signal to be reproduced are attenuated in correspondence with the high frequency components of the audio signal which have been removed by the low pass filter whereby the audio signal with no conspicuous unnaturalness can be reproduced. <IMAGE>
申请公布号 EP0762685(A2) 申请公布日期 1997.03.12
申请号 EP19960306398 申请日期 1996.09.04
申请人 SONY CORPORATION 发明人 NISHINO, YASUJI
分类号 G11C7/00;G10L19/00;G11B20/00;G11C7/16;H04B1/16;H04H1/00;H04H60/27 主分类号 G11C7/00
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