发明名称 |
METHOD AND APPARATUS FOR AUDIO PROCESSING |
摘要 |
<p>An audio apparatus comprises a circuit (201) for applying a dynamic range adjustment processing to an input signal to generate an output signal for rendering by a loudspeaker (101). The dynamic range adjustment processing is dependent on a set of dynamic range adjustment parameters. A first linear echo-cancellation filter (203) generates a first compensated signal from the audio input signal and a first adapter (205) determines a set of filter parameters for the first linear echo-cancellation filter (203) in response to the first compensated signal and a microphone signal. An audio circuit (207, 209) generates a second compensated signal by applying the dynamic range adjustment processing and a second echo-cancellation filter (209) to the input signal where the second echo-cancellation filter (209) corresponding to the first echo-cancellation filter (203). A second adapter (211) determines the set of dynamic range adjustment parameters in response to the second compensated signal and the microphone signal. The approach can increase linearity and echo-cancellation for many systems.</p> |
申请公布号 |
EP2939405(A1) |
申请公布日期 |
2015.11.04 |
申请号 |
EP20140716644 |
申请日期 |
2014.03.18 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
KECHICHIAN, PATRICK;JANSE, CORNELIS, PIETER |
分类号 |
H04M3/00;H04M9/08 |
主分类号 |
H04M3/00 |
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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