Multiple description perceptual audio coding with correlating transforms

In audio communication over a lossy packet network, concealment techniques are used to mitigate the effects of lost packets. This concealment is markedly improved if the compressed representation retains redundancy to aid in the estimation of lost information. A perceptual audio coder employing mult...

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Veröffentlicht in:	IEEE transactions on speech and audio processing 2000-03, Vol.8 (2), p.140-145
Hauptverfasser:	Arean, R., Kovacevic, J., Goyal, V.K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Audio coding Auditory system Bit rate Coding Compressed Correlation Degradation Exact sciences and technology Humans Image coding Information, signal and communications theory Masking threshold Networks Packets (communication) Psychoacoustic models Redundancy Representations Robustness Signal processing Speech Speech processing Telecommunications and information theory Transforms
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Beschreibung
Zusammenfassung:	In audio communication over a lossy packet network, concealment techniques are used to mitigate the effects of lost packets. This concealment is markedly improved if the compressed representation retains redundancy to aid in the estimation of lost information. A perceptual audio coder employing multiple description correlating transforms demonstrates this phenomenon.
ISSN:	1063-6676 2329-9290 1558-2353 2329-9304
DOI:	10.1109/89.824698