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» Flexcode - flexible audio coding
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ICASSP
2009
IEEE
14 years 1 months ago
Low bitrate audio coding using generalized adaptive gain shape vector quantization across channels
Audio coding at low bitrates suffers from artifacts due to spectrum truncation. Typical audio codecs code multi-channel sources using transforms across the channels to remove redu...
Sanjeev Mehrotra, Wei-Ge Chen, Kishore A. Kotteri
ICASSP
2011
IEEE
12 years 10 months ago
Efficient transform coding of two-channel audio signals by means of complex-valued stereo prediction
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...
Christian R. Helmrich, Pontus Carlsson, Sascha Dis...
MLMI
2007
Springer
14 years 1 months ago
Frequency Domain Linear Prediction for QMF Sub-bands and Applications to Audio Coding
Abstract. This paper proposes an analysis technique for wide-band audio applications based on the predictability of the temporal evolution of Quadrature Mirror Filter (QMF) sub-ban...
Petr Motlícek, Sriram Ganapathy, Hynek Herm...
ICASSP
2011
IEEE
12 years 10 months ago
Enhanced long-term predictor for Unified Speech and Audio Coding
Unified Speech and Audio Coding (USAC) is an emerging MPEG audio standard striving for efficiently representing both speech and music signals even in very low bitrate ranges. The ...
Jeongook Song, Hyen-O Oh, Hong-Goo Kang
TASLP
2002
87views more  TASLP 2002»
13 years 6 months ago
A new audio coding scheme using a forward masking model and perceptually weighted vector quantization
This paper presents a new audio coder that includes two techniques to improve the sound quality of the audio coding system. First, a forward masking model is proposed. This model e...
Yuan-Hao Huang, Tzi-Dar Chiueh