发明名称 |
Dynamic bass boost apparatus and method |
摘要 |
Audio processing methods and apparatus are provided for at least partially compensating for the Fletcher-Munson effect. An audio processor includes a variable filter receiving an input signal and providing a filtered output signal, the variable filter having a fixed cutoff frequency and a quality factor that is controllable in response to a control signal, and a control circuit configured to detect a signal level representative of input signal level in a selected band and to generate the control signal in response to the detected signal level. The control circuit may include a low-pass band select filter and a detector for detecting a signal level in the band selected by the low-pass filter and for generating the control signal.
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申请公布号 |
US2005058303(A1) |
申请公布日期 |
2005.03.17 |
申请号 |
US20030660447 |
申请日期 |
2003.09.11 |
申请人 |
MARTIN STEPHEN L.;BURLINGAME GREGORY B.;DAVID JOHN R.;ROGGE GLENN G. |
发明人 |
MARTIN STEPHEN L.;BURLINGAME GREGORY B.;DAVID JOHN R.;ROGGE GLENN G. |
分类号 |
H03G5/22;H03G9/16;(IPC1-7):H03G5/00;H03G9/00 |
主分类号 |
H03G5/22 |
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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