发明名称 |
ADAPTIVE NOISE SUPPRESSION FOR SUPER WIDEBAND MUSIC |
摘要 |
Techniques are described for performing adaptive noise suppression to improve handling of both speech signals and music signals at least up to super wideband (SWB) bandwidths. The techniques include identifying a context or environment in which audio data is captured, and adaptively changing a level of noise suppression applied to the audio data prior to bandwidth compressing (e.g., encoding) based on the context. For a valid speech context, an audio pre-processor may set a first level of noise suppression that is relatively aggressive in order to suppress noise (including music) in the speech signals. For a valid music context, the audio pre-processor may set a second level of noise suppression that is less aggressive in order to leave the music signals undistorted. In this way, a vocoder at a transmitter side wireless communication device may properly encode both speech and music signals with minimal distortions. |
申请公布号 |
WO2017052756(A1) |
申请公布日期 |
2017.03.30 |
申请号 |
WO2016US44291 |
申请日期 |
2016.07.27 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
DEWASURENDRA, Duminda Ashoka;RAJENDRAN, Vivek;SUBASINGHA, Subasingha Shaminda |
分类号 |
G10L25/81;G10L21/0208;G10L25/84 |
主分类号 |
G10L25/81 |
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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