发明名称 |
FYLDNING AF IKKE-KODEDE UNDERVEKTORER I TRANSFORMATIONSKODEDE LYDSIGNALER |
摘要 |
A spectrum filler for filling non-coded residual sub-vectors of a transform coded audio signal includes a sub-vector compressor configured to compress actually coded residual sub-vectors. A sub-vector rejecter is configured to reject compressed residual sub-vectors that do not fulfill a predetermined sparseness criterion. A sub-vector collector is configured to concatenate the remaining compressed residual sub-vectors to form a first virtual codebook. A coefficient combiner is configured to combine pairs of coefficients of the first virtual codebook to form a second virtual codebook. A sub-vector filler is configured to fill non-coded residual sub-vectors below a predetermined frequency with coefficients from the first virtual codebook, and to fill non-coded residual sub-vectors above the predetermined frequency with coefficients from the second virtual codebook. |
申请公布号 |
DK2684190(T3) |
申请公布日期 |
2016.02.22 |
申请号 |
DK20110860593T |
申请日期 |
2011.09.14 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
GRANCHAROV, VOLODYA;SVERRISSON, SIGURDUR;NÄSLUND, SEBASTIAN |
分类号 |
G10L19/028;G10L19/00;G10L19/02 |
主分类号 |
G10L19/028 |
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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