发明名称 METHOD AND ARRANGEMENT FOR DAMPING OF DOMINANT FREQUENCIES IN AN AUDIO SIGNAL
摘要 <p>Method and arrangement in an audio handling entity, for damping of dominant frequencies in a time segment of an audio signal. A time segment of an audio signal is obtained, and an estimate of the spectral density or &ldquo;spectrum&rdquo; of the time segment is derived. An approximation of the estimate is derived by smoothing the estimate, and a frequency mask is derived by inverting the approximation. Frequencies comprised in the audio time segment are then damped based on the frequency mask. The method and arrangement involves no multi-band filtering or selection of attack and release times.</p>
申请公布号 EP2689418(A1) 申请公布日期 2014.01.29
申请号 EP20110861333 申请日期 2011.03.21
申请人 TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) 发明人 SANDGREN, NICLAS
分类号 G10L21/0208;H03G9/00;H03G9/02 主分类号 G10L21/0208
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