发明名称 |
SPECTRAL SMOOTHING METHOD FOR NOISY SIGNALS |
摘要 |
A smoothing method for suppressing fluctuating artifacts in the reduction of interference noise includes the following steps: providing short-term spectra for a sequence of signal frames, transforming each short-term spectrum by way of a forward transformation which describes the short-term spectrum using transformation coefficients that represent the short-term spectrum subdivided into its coarse and fine structures; smoothing the transformation coefficients with the respective same coefficient indices by combining at least two successive transformed short-term spectra; and transforming the smoothed transformation coefficients into smoothed short-term spectra by way of a backward transformation.
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申请公布号 |
US2010182510(A1) |
申请公布日期 |
2010.07.22 |
申请号 |
US20080665526 |
申请日期 |
2008.06.25 |
申请人 |
RUHR-UNIVERSITAET BOCHUM;SIEMENS AUDIOLOGISCHE TECHNIK GMBH |
发明人 |
GERKMANN TIMO;BREITHAUPT COLIN;MARTIN RAINER |
分类号 |
H04N5/00;G06K9/40;G10L19/02;G10L21/02;G10L21/0208;G10L25/24;G10L25/27 |
主分类号 |
H04N5/00 |
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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