Patent
Encoder, decoder and method for encoding and decoding audio content using parameters for enhancing a concealment
Jérémie Lecomte,Benjamin Schubert,Michael Schnabel,Dietz Martin +3 more
- 24 Aug 2015
17
TL;DR: In this article, an encoder for coding speech-like content and/or general audio content, where the encoder is configured to embed, at least in some frames, parameters in a bitstream, which parameters enhance a concealment in case an original frame is lost, corrupted or delayed, is presented.
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Abstract: The present invention concerns an encoder for coding speech-like content and/or general audio content, wherein the encoder is configured to embed, at least in some frames, parameters in a bitstream, which parameters enhance a concealment in case an original frame is lost, corrupted or delayed, and a decoder for decoding speech-like content and/or general audio content, wherein the decoder is configured to use parameters which are sent later in time to enhance a concealment in case an original frame is lost, corrupted or delayed, as well as a method for encoding and a method for decoding.
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Jacobs Paul E,Gardner William R,Lee Chong U,Gilhousen Klein S,Lam S Katherine,Ming-Chang Tsai +5 more
TL;DR: In this paper, a variable rate coding of frames of digitized speech samples is proposed, comprising the steps of determining a level of speech activity for a frame of digitised speech samples, selecting an encoding rate from a set of rates based upon the determined level of activity within said frame, and coding said frame according to a predetermined coding format for said selected rate wherein each rate has a corresponding different coding format.
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B. Bessette,R. Salami,Roch Lefebvre,Milan Jelinek,Jani Rotola-Pukkila,Janne Vainio,H. Mikkola,K. Jarvinen +7 more
TL;DR: In this paper, the adaptive multirate wideband (AMR-WB) speech codec was selected by the Third Generation Partnership Project (3GPP) for GSM and the third generation mobile communication WCDMA system for providing wideband speech services.
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Methods and devices for low-frequency emphasis during audio compression based on acelp/tcx
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