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检索条件"主题词=Audio coding"
1195 条 记 录,以下是1141-1150 订阅
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Digital audio compression technology and AVS audio standard research
Digital audio compression technology and AVS audio standard ...
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IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)
作者: RuiMin Hu Yong Zhang Haojun Ai National Multimedia Software Engineering Technology Research Center Wuhan University of China Wuhan China
This paper gives a brief overview of the current research of digital audio coding and decoding standard, and introduces the newly established AVS audio standard. It also draws the roadmap of AVS/spl ***/M audio standa... 详细信息
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Scalable audio coder based on quantizer units of MDCT coefficients
Scalable audio coder based on quantizer units of MDCT coeffi...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: A. Jin T. Moriya T. Norimatsu M. Tsushima T. Ishikawa NTT Human Interface Laboratories Musashino Tokyo Japan Matsushita Elecrric Indusrrial Company Limited Kadoma Osaka Japan
A scalable codec has been constructed by using transform coding and the basic modules for scalable encoder and decoder. It allows users to choose a variety of scalable configurations in the frequency domain. The basic... 详细信息
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Multiband amplitude modulated sinusoidal audio modeling
Multiband amplitude modulated sinusoidal audio modeling
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: M.G. Christensen S. van de Par S.H. Jensen S.V. Andersen Dept. of Communication Technology Aalborg University Denmark Philips Research Laboratories Eindhoven The Netherlands
In this paper, we investigate the importance of taking frequency-dependent temporal phenomena into account in audio coding. We do this in the context of sinusoidal modeling of audio signals by applying amplitude modul... 详细信息
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audio representations on overcomplete sets
Audio representations on overcomplete sets
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International Conference on Digital Signal Processing (DSP)
作者: L. Daudet M. Sandler B. Torresani Department of Electronic Engineering Queen''s Mary University of London London UK LATP-CMI Université de Provence Marseilles France
We present in this paper the advantages of using overcomplete sets for the representation and coding of audio signals. More specifically, we have investigated hybrid signal models of the type {tonal+transients+stochas... 详细信息
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ROBUST CRITICAL DATA RECOVERY FOR MPEG-4 AAC ENCODED BITSTREAMS
ROBUST CRITICAL DATA RECOVERY FOR MPEG-4 AAC ENCODED BITSTRE...
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IEEE International Conference on Acoustics, Speech, and Signal Processing
作者: Ruijing Hu Xucen Huang Michel Kieffer Olivier Derrien Pierre Duhamel L2S CNRS-SUPELEC-Univ Paris-Sud 3 rue Joliot-Curie 91192 Gif-sur-Yvette France LMA CNRS Marseille France
This paper presents a bandwidth-efficient method for improved decoding of critical data generated by the MPEG-4 AAC audio coder when encoded bitstreams are transmitted over noisy channels. The critical data of each en... 详细信息
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Improved Algorithms for Implementation of MPEG2 AAC Decoder on FPGA
Improved Algorithms for Implementation of MPEG2 AAC Decoder ...
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IEEE Region 10 International Conference TENCON
作者: Rajath R. Shenoy Sudhir S. Naik D.S. Sumam Deptartment of Electronics & Communication Engineering National Institute of Technology Karnataka Surathkal Mangalore INDIA Dept. of Electron. & Commun. Eng. Nat. Inst. of Technol. Karnataka Mangalore
This paper discusses methods to implement the IMDCT filter bank, noiseless decoder, inverse quantiser and scale factor application modules of MPEG-2 advanced audio coding decoder more efficiently when implemented on F... 详细信息
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A new perceptual entropy-based method to achieve a signal adapted wavelet tree in a low bit rate perceptual audio coder
A new perceptual entropy-based method to achieve a signal ad...
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European Signal Processing Conference (EUSIPCO)
作者: N. Ruiz Reyes M. Rosa Zurera F. López Ferreras D. Martínez Muñoz Departamento de Electrónica Universidad de Jaén Escuela Universitaria Politénica. 23700 Linares - Jaén (Spain) Dpto. de Teoría de la Señal y Comunicaciones Universidad de Alcalá Escuela Politécnica 28871 Alcalá de Henares - Madrid (Spain)
This paper outlines a wavelet based audio coding scheme that uses a perceptual entropy criterion to achieve a signal adapted wavelet tree. We are interested in decompositions adapted to the nature of audio signals, bu... 详细信息
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An overview of MDCT for Time Domain Aliasing Cancellation
An overview of MDCT for Time Domain Aliasing Cancellation
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International Conference on Communication and Network Technologies (ICCNT)
作者: V. Arun Raj M. Davidson Kamala Dhas D. Gnanadurai Mepco Schlenk Engineering College Sivakasi India Department of ECE Mepco Schlenk Engineering College Sivakasi India J.P. College of Engineering Ayikudi India
Modified Discrete Cosine Transform (MDCT) is a upcoming special transform implemented in areas of audio signal processing and compression. As, the name implies it is the modified form of DCT (Discrete Cosine Transform... 详细信息
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A low bit-rate audio coder based on modified sinusoidal model
A low bit-rate audio coder based on modified sinusoidal mode...
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International Conference on Communications, Circuits and Systems (ICCCAS)
作者: Song Shaopeng Yin Junxun Yu Yongcong A.-M. Raed Department of Electronic Engineering South China University of Technology Guangzhou China
A very low bit-rate audio coding algorithm suitable for wireless mobile communications is presented. The codec is based on a sinusoidal model, with modifications to reduce bit-rate and improve reconstructed audio qual... 详细信息
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Local bases yielding arbitrary tilings of the time-frequency plane
Local bases yielding arbitrary tilings of the time-frequency...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: R. Bernardini J. Kovacevic Università di Padova Padova Italy AT and T Bell Laboratories Inc. Murray Hill NJ USA
We show how to obtain arbitrary tilings of the time-frequency plane using local orthogonal bases. These bases were constructed as a generalization of the cosine-modulated filter banks in discrete time, and local trigo... 详细信息
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