SOUND INTELLIGIBILTY ENCHANCEMENT USING A PSYCHOACOUSTIC MODEL AND AN OVERSAMPLED FIOLTERBANK
摘要
<p>A sound intelligibility enhancement (SIE) system is disclosed. The SIE system uses a psychoacoustic model and preferably an oversampled filterbank wherein the level of a signal-of-interest that falls below the environmental noise is selectively amplified as a function of the input level and frequency so that it is audible above the noise but never exceeds a predetermined maximum output level as a function of frequency. The SIE system can be combined with active noise cancellation.</p>
申请公布号
WO03015082(A1)
申请公布日期
2003.02.20
申请号
WO2002CA01221
申请日期
2002.08.07
申请人
DSPFACTORY LTD.;SCHNEIDER, TODD;COODE, DAVID;BRENNAN, ROBERT, L.;OLIJNYK, PETER
发明人
SCHNEIDER, TODD;COODE, DAVID;BRENNAN, ROBERT, L.;OLIJNYK, PETER