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- W2129553617 abstract "This paper presents a scalable audio called multi-layer scalable LPC audio format, that addresses similar functionalities of MPEG-4. The format offers different levels of data rate and audio quality, and answers to the most important requirements of transmission and storage purposes, such as channel error robustness, cell loss robustness, low delay, and playback control. It operates in four modes. The first mode is based on a modified version of the LD-CELP algorithm, in which each 6 samples are represented by one single byte. In order to improve the signal-to-noise ratio (SNR), additional enhancement layers are embedded in the bit stream to allow higher quality at higher bit rates. The resultant bit rates are integer-multiple of 10.67 kbps. The other three modes use QMF splitting to two, four and eight subbands. These modes allow efficient representation of wideband audio and speech signals, and offer extension layers of 5.33 and 2.66 kbps. A simple and efficient header structure is embedded in the bitstream to allow the decoding process even in channel error conditions and even when the bitstream has been down-scaled somewhere during the transmission but has not been acknowledged to the decoder. Comparison results are conducted with respect to MPEG and ITU standards." @default.
- W2129553617 created "2016-06-24" @default.
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- W2129553617 date "2002-11-07" @default.
- W2129553617 modified "2023-09-27" @default.
- W2129553617 title "Multi-layer scalable LPC audio format" @default.
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- W2129553617 doi "https://doi.org/10.1109/iscas.2000.856033" @default.
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