Patent
Method and device for carrying out optimal coding between two long-term prediction models
Mohamed Ghenania,Claude Lamblin +1 more
- 09 Jan 2006
5
TL;DR: In this paper, a method for coding according to a second coding format from items of information obtained by using a coding based on a first coding format was proposed, where the first and second coding formats use, particularly for coding a speech signal, a search for long-term prediction parameters LTP by searching a dictionary containing candidate parameters.
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Abstract: The invention relates to a method for coding according to a second format from items of information obtained by using a coding according to a first format. These first and second formats use, particularly for coding a speech signal, a search for long-term prediction parameters LTP by searching a dictionary containing candidate parameters. The method comprises the following steps: a) defining (25b) the orderings of a dictionary (25) that uses the second coding format; b) retrieving (23) an item of a priori information obtained following the determination of the parameters LTP during the coding according to the first format for selecting (26) an ordering of said dictionary; c) applying (27) the selected ordering to the candidates of the dictionary for choosing (29) a limited number of first candidates, and; d) for carrying out the second coding, carrying out the LTP search solely among this limited number of candidates (30).
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Citations
Patent
Context based word prediction
Jason Michael Bower,Kenji Furuuchi,Simon Liu,Kenichi Morimoto,Daryn E. Robbins,Chetley T. Laughlin,Peter Gregory Davis +6 more
- 08 Feb 2007
TL;DR: In this paper, a software application utilizes words contained in an application document to provide context-based word prediction in the same or a related document, and the user may choose from the presented candidate words for automatic population into the document being edited.
217
Patent
Predicting textual candidates
Kenji Furuuchi,Kenichi Morimoto +1 more
- 08 Feb 2007
TL;DR: In this article, a number of textual candidates can be predicted based in part on user input and data stored in a store component, and the number of predicted textual candidate can be suggested to the user as a sum of suggested textual candidates.
55
Patent
Method and apparatus for polyphonic audio signal prediction in coding and networking systems
Kenneth Rose,Tejaswi Nanjundaswamy +1 more
- 19 Aug 2013
TL;DR: In this paper, a framework of a cascade of long-term prediction filters is proposed to account for all periodic components present in a polyphonic signal, which is complemented with a design method to optimize the system parameters.
11
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Dynamic negotiation method and device for coding and decoding
Deng Lingli,Lu Lu,Peng Jin,Ai Chen,Jiang Yi +4 more
- 05 Jun 2013
TL;DR: In this article, a dynamic negotiation method and device for coding and decoding is proposed, which comprises monitoring a current network environment to obtain a current available bandwidth; adjusting a first negotiation list including a plurality of coding and decoders to obtain an additional negotiation list according to the current bandwidth; and renegotiating the coding and encoding format with an opposite terminal device according to a second negotiation list when the transmission quality of the current established media steam is smaller than a preset transmission quality threshold corresponding to the decoding format utilized by the current media steam.
8
Patent
Handoffs between different voice encoder systems
Richard Louis Zinser,Michael James Hartman,John Erik Hershey +2 more
- 28 Jan 2011
TL;DR: In this article, the authors provided methods (50, 70, 100) and systems (10) of managing handoffs in a wireless communication system having different types of vocoders (30, 32).
2
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Hong-Goo Kang,Hong Kook Kim,R.V. Cox +2 more
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TL;DR: This paper proposes a bit-stream mapping method between ITU-T Recommendation G.729 and TIA IS-641 that has better quality than the cross tandeming method in both clean and frame erased channel environments.
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Patent
Method for improvement of G.723.1 processing time and speech quality and for reduction of bit rate in CELP vocoder and CELP vococer using the same
Jeong-Jin Kim,Kyung A Jang,Myung Jin Bae,Yoo Na Sung,Min Kyu Shim,Seong Hoon Hong +5 more
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TL;DR: In this article, a method for improving process time and speech quality of G.723.1 and reducing bit rate in a CLEP (Code Excited Linear Prediction) voice coder (or, called as vocoder) is presented.
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