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检索条件"主题词=Audio coding"
1193 条 记 录,以下是361-370 订阅
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SPATIAL-TEMPORAL MULTI-CHANNEL audio coding
SPATIAL-TEMPORAL MULTI-CHANNEL AUDIO CODING
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IEEE Sensor Array and Multichannel Signal Processing Workshop
作者: Lee, Jonghwa Lee, Chulhee Yonsei Univ Dept Elect & Elect Engn Seoul 120749 South Korea
This paper presents a multi-channel audio coding method compatible with the standard stereo audio coding method. The encoding method consists of three parts: spatial-temporal analysis of sound source location, compres... 详细信息
来源: 评论
Efficient implementation of a class of MDCT/IMDCT filterbanks for speech and audio coding applications
Efficient implementation of a class of MDCT/IMDCT filterbank...
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33rd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: Chivukula, Ravi K. Reznik, Yuriy A. QUALCOMM Inc San Diego CA 92121 USA Univ Texas Arlington Elect Engn Dept Arlington TX 76019 USA
In this paper, an efficient algorithm for implementing MDCT/IMDCT of lengths N = 5.2(m) (m >= 2) is presented. Transforms for such lengths are of interest for speech and audio coding applications, such as recently ... 详细信息
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Delay-free lossy audio coding using shelving pre- and post-filters
Delay-free lossy audio coding using shelving pre- and post-f...
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33rd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: Holters, Martin Zoelzer, Udo Helmut Schmidt Univ Hamburg Germany
A delay-free audio coding scheme based on ADPCM with adaptive pre- and post-filtering is presented. The pre-/post-filters are realized as a cascade of shelving filters, designed to match the characteristics of human p... 详细信息
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Enhanced direction estimation using microphone arrays for Directional audio coding
Enhanced direction estimation using microphone arrays for Di...
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Workshop on Hands-Free Speech Communication and Microphone Arrays
作者: Kallinger, Markus Kuech, Fabian Schultz-Amling, Richard Del Galdo, Giovanni Ahonen, Jukka Pulkki, Ville Fraunhofer Inst Integrated Circuit IIS Erlangen Germany Aalto Univ Lab Acoust & Audio Sig Proc Helsinki Finland
Modem home entertainment systems offer surround sound audio playback. This progress over known mono and stereo devices is also intended for high quality hands-free telephony to enhance intelligibility of speech in gro... 详细信息
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The diffuse sound field in energetic analysis
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JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2012年 第3期131卷 2141-2151页
作者: Del Galdo, Giovanni Taseska, Maja Thiergart, Oliver Ahonen, Jukka Pulkki, Ville Fraunhofer Inst Integrated Circuits Audio Dept D-91058 Erlangen Germany Aalto Univ Sch Elect Engn Dept Signal Proc & Acoust FI-00076 Helsinki Finland
Measuring the degree of diffuseness of a sound field is crucial in many modern parametric spatial audio techniques. In these applications, intensity-based diffuseness estimators are particularly convenient, as the sou... 详细信息
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An MPEG-4 AAC decoder FPGA implementation for the Brazilian digital television
An MPEG-4 AAC decoder FPGA implementation for the Brazilian ...
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Southern Conference on Programmable Logic
作者: Adriano Renner Altamiro Amadeu Susin PPGEE UFRGS Porto Alegre Brazil
This paper presents an MPEG-4 AAC decoder described in VHDL language and compliant with the Brazilian Digital Television standard (SBTVD). It has been synthesized to an Altera Cyclone II 2C35 FPGA using 26549 logic el... 详细信息
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Detection of tampering in lossy compressed digital audio recordings
Detection of tampering in lossy compressed digital audio rec...
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Signal Processing Algorithms, Architectures, Arrangements and Applications (SPA)
作者: Rafał Korycki Institute of Radioelectronics Warsaw University of Technology Warsaw Poland
This paper addresses the problem of tampering detection and discusses one of the methods used for authenticity analysis of digital audio recordings. Presented approach is based on checking frame offsets in audio files... 详细信息
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Tutorial on Critical Listening of Multi-Channel audio Codec Performance
Tutorial on Critical Listening of Multi-Channel Audio Codec ...
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SMPTE Technical Conference
作者: Sunil Bharitkar Grant Davidson Louis Fielder Poppy Crum Dolby Laboratories Inc. 100 Potrero Avenue San Francisco CA 94103
Listening for impairments introduced by multichannel audio codecs is an important task. Classical objective methods are not adequate in assessing audio coding schemes. Accordingly, the ITU-R BS.1116 & 1534 recomme... 详细信息
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Sound Field Model Violations in Parametric Spatial Sound Processing
Sound Field Model Violations in Parametric Spatial Sound Pro...
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IWAENC 2012;International Workshop on Acoustic Signal Enhancement
作者: Oliver Thiergart Emanuel A. P. Habets International Audio Laboratories Erlangen
Describing a sound field with a single audio signal and parametric side information offers an efficient way of storing, transmitting, or reproducing the recorded spatial sound. In many approaches, the parametric repre... 详细信息
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Efficient transform coding of two-channel audio signals by means of complex-valued stereo prediction
Efficient transform coding of two-channel audio signals by m...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: Christian R. Helmrich Pontus Carlsson Sascha Disch Bernd Edler Johannes Hilpert Matthias Neusinger Heiko Purnhagen Nikolaus Rettelbach Julien Robilliard Lars Villemoes Fraunhofer Institut für Integrierte Schaltungen Erlangen Germany Dolby Sweden AB Stockholm Sweden
Traditional MDCT-based perceptual audio coding schemes employ mid/side and intensity stereo techniques to allow efficient joint coding of the two channels of a stereophonic signal. These techniques, however, provide o... 详细信息
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