Patent
Bit error concealment methods for speech coding
Juin-Hwey Chen
- 19 Aug 2002
42
TL;DR: In this article, a method of concealing bit errors in a signal is provided, which comprises encoding a signal parameter according to a set of constraints placed on a signal parameters quantizer.
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Abstract: A method of concealing bit errors in a signal is provided. The method comprises encoding a signal parameter according to a set of constraints placed on a signal parameter quantizer (104). The encoded signal parameter is decoded and compared against the set of constraints (204). Finally, the method includes declaring the decoded signal parameter invalid or modifying the encoded signal (106) when the set of constraints is violated (610, 710). Training binned ranges of gain values provides a threshold (710) for selecting data segments to examine for violation of constraints on gain difference.
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Citations
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Systems, methods, and apparatus for gain factor limiting
Ananthapadmanabhan A. Kandhadai,Venkatesh Krishnan +1 more
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TL;DR: In this paper, a range of disclosed configurations including methods in which subbands of a speech signal are separately encoded, with the excitation of a first subband being derived from a second subband.
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Milan Jelinek
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TL;DR: In this article, a method and device for quantizing linear prediction parameters in variable bit-rate sound signal decoding is proposed, in which at least one quantization index and information about classification of a sound signal frame corresponding to the quantization indices are received, a prediction vector is reconstructed, and a linear prediction parameter vector is produced in response to the recovered prediction error vector and the reconstructed prediction vector.
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Jianfeng Xu,Lei Miao,Chen Hu,Qing Zhang,Lijing Xu,Wei Li,Zhengzhong Du,Yi Yang,Fengyan Qi,Wuzhou Zhan,Dongqi Wang +10 more
- 16 May 2008
TL;DR: In this paper, a method for performing a frame erasure concealment to a higher-band signal, including calculating a periodic intensity of a higherband signal with respect to a lowerband signal was presented.
36
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Patent
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