<p>Estimation of a high band extension of a low band audio signal includes the following steps: extracting (S1) a set of features of the low band audio signal; mapping (S2) extracted features to at least one high band parameter with generalized additive modeling; frequency shifting (S3) a copy of the low band audio signal into the high band; controlling (S4) the envelope of the frequency shifted copy of the low band audio signal by said at least one high band parameter.</p>
申请公布号
WO2011062538(A1)
申请公布日期
2011.05.26
申请号
WO2010SE50984
申请日期
2010.09.14
申请人
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL);GRANCHAROV, VOLODYA;BRUHN, STEFAN;POBLOTH, HARALD;SVERRISSON, SIGURDUR