Title:
帯域幅拡張復号化方法
Document Type and Number:
Japanese Patent JP5558829
Kind Code:
B2
Abstract:
Provided are a method and apparatus for bandwidth extension decoding, comprising checking whether a signal has been encoded in a frequency domain or a time domain, performing lossless-decoding and de-quantization, and inverse-transforming the signal to the time domain if the checking result shows that the signal has been encoded in the frequency domain, performing decoding of the signal using CELP (code excited linear prediction) if the checking result shows that the signal has been encoded in the time domain, transforming the signal that has been inverse-transformed to the time domain or the signal that has been decoded using CELP, using a quadrature mirror filter bank (QMF), decoding a high frequency band signal using the transformed signal, and inverse-transforming the decoded high frequency band signal using an inverse QMF.
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Inventors:
オ, Ung * ミ
Chu and Gyi * ヒョン
Kim and Jun * フェ
Chu and Gyi * ヒョン
Kim and Jun * フェ
Application Number:
JP2009545485A
Publication Date:
July 23, 2014
Filing Date:
December 20, 2007
Export Citation:
Assignee:
Samsung Electronics Company Limited
International Classes:
G10L19/00; G10L19/02
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki