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Quantized Perceptual Compressed Sensing for Audio Signal Compression

Authors: Hossam Mohamed Kasem; Osamu Muta; Maha Elsabrouty; Hiroshi Furukawa;

Quantized Perceptual Compressed Sensing for Audio Signal Compression

Abstract

Compressed 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. However, classical CS assumes that the measurements are real-valued and have infinite-bit precision that requires impractical hardware implementation. Quantized CS provides a solution to this problem. Different quantized compressed sensing techniques are developed in literature and recovery is possible even if only 1-bit is used for the quantization. In this work, we propose using different quantization vlaues, including 1-bit compressed sensing for perceptual audio signal compression in perceptual systems in order to clarify the effect of the quantization process on the achievable quality of audio signal. Mean Opinion Score (MOS) is used as metric to compare the perceived quality of audio signal of 1-bit CS and classical CS. Simulations results show that reasonable performance is achieved for different quantization CS compared to quantized classical CS.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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