发明名称 Audio coding system using spectral hole filling
摘要 <p>A method for generating audio information comprises: receiving an input signal and obtaining therefrom a set of subband signals each having one or more spectral components representing spectral content of an audio signal; identifying within the set of subband signals a particular subband signal in which one or more spectral components have a zero value and are quantized by a quantizer having a minimum quantizing level; generating one or more synthesized spectral components that correspond to the one or more zero-valued spectral components in the particular subband signal and that are scaled according to a scaling envelope based upon the minimum quantizing level; generating a modified set of subband signals by substituting the synthesized spectral components for corresponding zero-valued spectral components in the particular subband signal; and generating the audio information by applying a synthesis filterbank to the modified set of subband signals.</p>
申请公布号 EP2216777(B1) 申请公布日期 2011.12.07
申请号 EP20100162217 申请日期 2003.05.30
申请人 DOLBY LABORATORIES LICENSING CORPORATION 发明人 DAVIDSON, GRANT, ALLEN;FELLERS, MATTHEW, CONRAD;TRUMAN, MICHAEL, MEAD;VINTON, MARK, STUART;WATSON, MATTHEW, AUBREY;ROBINSON, CHARLES, QUITO
分类号 G10L19/02;G10L19/028;G10L21/02;H03M7/30 主分类号 G10L19/02
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