DETERMINING AN UPPERBAND SIGNAL FROM A NARROWBAND SIGNAL
摘要
<p>A method for determining an upperband speech signal from a narrowband speech signal is disclosed. A list of narrowband line spectral frequencies (LSFs) is determined from the narrowband speech signal. A first pair of adjacent narrowband LSFs that have a lower difference between them than every other pair of adjacent narrowband LSFs in the list is determined. A first feature that is a mean of the first pair of adjacent narrowband LSFs is determined. Upperband LSFs are determined based on at least the first feature using codebook mapping.</p>
申请公布号
WO2011050347(A1)
申请公布日期
2011.04.28
申请号
WO2010US53882
申请日期
2010.10.23
申请人
QUALCOMM INCORPORATED;KRISHNAN, VENKATESH;SINDER, DANIEL J.;KANDHADAI, ANANTHAPADMANABHAN ARASANIPALAI
发明人
KRISHNAN, VENKATESH;SINDER, DANIEL J.;KANDHADAI, ANANTHAPADMANABHAN ARASANIPALAI