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检索条件"主题词=Audio coding"
1195 条 记 录,以下是331-340 订阅
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Wideband speech and audio coding using gammatone filter banks
Wideband speech and audio coding using gammatone filter bank...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: E. Ambikairajah J. Epps L. Lin School of Electrical Engineering and Telecommunications The University of New South Wales NSW Australia School of Electrical Engineering and Telecommunications The University of New South Wales Sydney NSW Australia
Considerable research attention has been directed towards speech and audio coding algorithms capable of producing high quality coded speech and audio, however few of these use signal representations which account for ... 详细信息
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Low delay LPC and MDCT-based audio coding in the EVS codec
Low delay LPC and MDCT-based audio coding in the EVS codec
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IEEE International Conference on Acoustics, Speech and Signal Processing
作者: G. Fuchs C. R. Helmrich G. Markovic M. Neusinger E. Ravelli T. Moriya Fraunhofer Inst. fur Integrierte Schaltungen (IIS) Erlangen Germany
Speech coders operating in time domain can be extended with a frequency domain mode to improve encoding of music, even though this is challenging at low delay. In such a scenario, the short analysis window limits the ... 详细信息
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FPGA prototyping of an in-situ reconfigurable filter bank for audio coding
FPGA prototyping of an in-situ reconfigurable filter bank fo...
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Midwest Symposium on Circuits and Systems (MWSCAS)
作者: L.A. de B Naviner J.-F. Naviner M.A. de Barros Centre National de la Recherche Scientifique Paris ÃŽle-de-France FR GET/Télécom Paris CNRS/LTCI Paris France Universidade Federal de Campina Grande Departamento de Sistemas deComputação Campina Grande Brazil
This paper presents the FPGA implementation of a processor suitable for adaptive multi-resolution analysis in a audio coding schema. Implementation takes into account all symmetries in the filter response and uses dis... 详细信息
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A new approach to low bit rate audio coding using a combined harmonic-multiband-wavelet representation
A new approach to low bit rate audio coding using a combined...
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International Symposium on Signal Processing and Its Applications (ISSPA)
作者: M. Deriche D. Ning S. Boland Signal Processing Research Centre School of Electrical and Electronic Systems Engineering Queensland University of Technology Brisbane QLD Australia
In this paper, we present updated results for the combined harmonic-wavelet based audio coder. This coder first approximates the audio frame as a sum of several sinusoids using a harmonic analysis-synthesis scheme. Th... 详细信息
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Globally optimized dynamic bit-allocation strategy for subband ADPCM-based low delay audio coding
Globally optimized dynamic bit-allocation strategy for subba...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: Stephan Preihs Jörn Ostermann Leibniz Universität Hannover Institut für Informationsverarbeitung Appelstr. 9A Hannover Germany
This paper presents an extension and global optimization of a bit-allocation strategy for use in a low delay subband ADPCM-based audio coding scheme. The framework employed for the assignment of bits to subband quanti... 详细信息
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A modified distortion metric for audio coding
A modified distortion metric for audio coding
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: Vinay Melkote Kenneth Rose Department of Electrical and Computer Engineering University of California Santa Barbara CA USA
Current audio coding standards employ the modified discrete cosine transform (MDCT) where overlapped frames of audio are windowed and transformed to the frequency domain. Encoding parameters are chosen so as to minimi... 详细信息
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Cascaded RLS-LMS Prediction in MPEG-4 Lossless audio coding
Cascaded RLS-LMS Prediction in MPEG-4 Lossless Audio Coding
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: H. Huang S. Rahardja X. Lin R. Yu P. Franti Institute for Infocomm Research Singapore Department of Computer Science University of Joensuu Finland
A new MPEG-4 standard for lossless audio coding is going to be published in 2006. This coming international standard consists of two parts: the transform-domain scalable to lossless coding (SLS), and the time-domain a... 详细信息
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Low bit rate high quality audio coding with combined harmonic and wavelet representations
Low bit rate high quality audio coding with combined harmoni...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: K.N. Hamdy M. Ali A.H. Tewfi Department of Electrical Engineering University of Minnesota Minneapolis MN USA University of Minnesota Minneapolis MN US
We describe a novel high quality audio coding method using adaptive signal representation, based on sinusoidal and wavelet analysis of signals. First, we perform a harmonic analysis of the signal to remove strong peri... 详细信息
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Lossless audio coding with Bandwidth Extension Layers
Lossless Audio Coding with Bandwidth Extension Layers
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IEEE Workshop on Applications of Signal Processing to audio and Acoustics
作者: Stephen Voran Institute of Telecommunication Sciences Boulder CO USA
Layered audio coding typically offers reduced distortion as bit rate is increased, but that distortion is spread across the entire band until the lossless coding bit rate is reached and distortion is eliminated. We pr... 详细信息
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Jointly optimal quantization of parameters in sinusoidal audio coding
Jointly optimal quantization of parameters in sinusoidal aud...
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IEEE Workshop on Applications of Signal Processing to audio and Acoustics
作者: R. Vafin W.B. Kleijn Department of Signals Royal Institute of Technology Stockholm Sweden
In this paper, we present new methods for jointly optimal scalar quantization of parameters in sinusoidal audio coding. The sinusoidal amplitudes, frequencies, and phases used to represent (the tonal component of) an ... 详细信息
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