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Perceptually Prioritized Bit-Plane Coding for High-Definition Advanced Audio Coding
Eighth IEEE International Symposium on Multimedia (ISM'06), 2006Wide bitrate range scalability is now the latest trend in audio coding. A lot of efforts has been devoted to the development of algorithms for more efficient scalable audio coder that scales from very low bitrate. Scalable audio coding technique such as MPEG-4 Scalable Lossless coding (SLS) offers a unified solution for high-compression perceptual ...
Te Li, Susanto Rahardja, Soo Ngee Koh
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Perceptual coding of height-quality audio signals
The Journal of the Acoustical Society of America, 1994Perceptual coders promise to deliver true transparent coding. The listener should not be able to hear any difference between original and reconstructed signal. The main elements of perceptual coders are (1) a filterbank to map the time domain input signal to a time- frequency domain representation, (i.e., the masked threshold) and (2) the quantization ...
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A computationally efficient cochlear filter bank for perceptual audio coding
2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221), 2002Many applications in auditory modeling require analysis filters that approximate the frequency selectivity given by psychophysical data, e.g., from masking experiments using narrow-band maskers. This frequency selectivity is largely determined by the spectral decomposition process inside the human cochlea.
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Transform coding of audio signals using perceptual noise criteria
IEEE Journal on Selected Areas in Communications, 1988A 4-b/sample transform coder is designed using a psychoacoustically derived noise-making threshold that is based on the short-term spectrum of the signal. The coder has been tested in a formal subjective test involving a wide selection of monophonic audio inputs. The signals used in the test were of 15-kHz bandwidth, sampled at 32 kHz.
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Perceptual coding of audio signals
2009This thesis presents the research work done to improve the implementability of the ISO/MPEG (International Standard Organisation/Moving Picture Experts Group) audio coding algorithm. The main concept behind this audio coding algorithm is the use of a psychoacoustic model as the basis for removing audio signals which are irrelevant to the human ear. The
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Narrowband perceptual audio coding: enhancements for speech
7th European Conference on Speech Communication and Technology (Eurospeech 2001), 2001Hossein Najaf-Zadeh, Peter Kabal
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Objective Quality Assessment of Perceptually Coded Audio Signals
2023Eines der Hauptziele bei der Entwicklung von Algorithmen zur Kodierung und Verarbeitung von Audiosignalen ist die Erzielung der bestmöglichen Klangqualität innerhalb einer gegebenen Reihe von Entwurfsparametern (z. B. Beschränkungen hinsichtlich Bitrate und Rechenkomplexität).
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Real-Time Perceptual Moving-Horizon Multiple-Description Audio Coding
IEEE Transactions on Signal Processing, 2011Jan Østergaard +2 more
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