发明名称 |
Signal processing device and signal processing method |
摘要 |
<p>There is provided a signal processing device including a noise cancellation process clock generation unit configured to generate a noise cancellation process clock having a predetermined fixed frequency, a noise canceling unit configured to include a noise canceling filter operating based on the noise cancellation process clock and generating a noise canceling signal having a signal property of canceling an external noise component based on an input audio signal including the external noise component picked up by a microphone, and an addition unit superimposing the noise canceling signal generated by the filter on a digital audio signal, and a sampling rate conversion unit configured to rate-convert the input digital audio signal sampled at a clock in asynchrony with the noise cancellation process clock to a signal at a sampling frequency in synchrony with the noise cancellation process clock and to supply the rate-converted signal to the addition unit.</p> |
申请公布号 |
EP2533237(A2) |
申请公布日期 |
2012.12.12 |
申请号 |
EP20120164504 |
申请日期 |
2012.04.17 |
申请人 |
SONY CORPORATION |
发明人 |
OOKURI, KAZUNOBU;ASADA, KOHEI;ITABASHI, TETSUNORI |
分类号 |
G10K11/178 |
主分类号 |
G10K11/178 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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