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Generalized Lempel–Ziv Compression for Audio
IEEE Transactions on Audio, Speech and Language Processing, 2005We introduce a novel compression paradigm to generalize a class of Lempel-Ziv algorithms for lossy compression of multimedia. Based upon the fact that music, in particular electronically generated sound, has substantial level of repetitiveness within a single clip, we generalize the basic Lempel-Ziv compression algorithm to support representing a ...
D. Kirovski, Z. Landau
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Standards for Audio Compression
1995Digital audio is an integral part of any video or multimedia application and may consume a considerable portion of the overall bandwidth. Therefore, efficient compression of the audio data is as important as the efficient compression of the video data.
Vasudev Bhaskaran +1 more
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Fast Audio Feature Extraction From Compressed Audio Data
IEEE Journal of Selected Topics in Signal Processing, 2011We describe an efficient system, which directly extracts features from compressed audio material. It consists of a time-frequency conversion method and a feature extraction algorithm. The conversion method provides the feature extraction algorithm with a suitable complex spectral representation directly from the compressed domain, and further allows to
Gerald Schuller +2 more
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Digital audio data compression
Electronics & Communication Engineering Journal, 1995Conventional digital audio, as used for instance on compact discs, requires a large bandwidth for transmission and enormous amounts of storage space. Developments in high-speed digital signal processing chips have made it practical to reduce these requirements by employing sophisticated data compression techniques which reduce redundant and irrelevant ...
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Quantized Perceptual Compressed Sensing for Audio Signal Compression
2015 Data Compression Conference, 2015Compressed Sensing (CS) has been widely used for multimedia processing to reduce the number of the measurements required to acquire signals that are spare or compressible sparse in some basis. CS provides good quality of the restored signal even when the signal is not completely sparse and even also at high compression ratio.
Hossam Mohamed Kasem +3 more
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Compatible scrambling of compressed audio
Proceedings of the 1999 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics. WASPAA'99 (Cat. No.99TH8452), 1999Stimulated by the technological revolution in both networking technology (the Internet) and highly efficient perceptual audio coding algorithms (e.g. MPEG audio), a tremendous amount of music piracy has emerged recently. In contrast to this, a controlled distribution of music or multimedia content commonly employs so-called secure envelope techniques ...
J. Herre, E. Allamanche
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MPEG Audio Compression Advances
2011Recent MPEG audio coding work continues the quest for ever greater compression efficiency. It uses the tools of the MPEG-1 and MPEG-2 perceptual coders and adds a number of new mechanisms to achieve greater signal compression, giving it the following “compression toolbox”: Perceptually shaped quantization noise Parametric coding of high-band spectral ...
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A Tutorial on MPEG/Audio Compression
IEEE Multimedia, 1995This tutorial covers the theory behind MPEG/audio compression. While lossy, the algorithm can often provide "transparent", perceptually lossless compression, even with factors of 6-to-1 or more. It exploits the perceptual properties of the human auditory system. The article also covers the basics of psychoacoustic modeling and the methods the algorithm
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Lossless audio data compression
2007Lossless audio compression is a rapidly developing field with a strict stipulation: the decompressed sample information must match the original audio data. A common strategy applied by modern compression systems is a "prediction/residual " structure. This strategy generates a series of estimates for audio samples and applies coding schemes to encode ...
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2011
MPEG Audio was the first international standard for high quality audio coding and it opened the doors to a variety of applications in the world of digital music. In this chapter we review the basic ideas and features behind the general purpose, perceptual audio coders specified in the MPEG-1 and MPEG-2 audio standards which include the MP3 and AAC ...
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MPEG Audio was the first international standard for high quality audio coding and it opened the doors to a variety of applications in the world of digital music. In this chapter we review the basic ideas and features behind the general purpose, perceptual audio coders specified in the MPEG-1 and MPEG-2 audio standards which include the MP3 and AAC ...
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