Paper Info
Title
Packet Loss Concealment for MDCT-Based Audio Codec Using Correlation-Based Side Information
Abstract
In this paper we investigate several methods to estimate the signal in the lost packet of MP3 audio using side information. Our methods are based on a packet loss concealment method using sign correction proposed by Suzuki et al. Suzuki's method uses sign of lower MDCT coefficients as redundant information, and the sign information is used when estimating the MDCT coefficients of the lost packet. In this paper, we propose a new method to use the same side information as Suzuki's method. Our method is a combination of one-bit quantization and sign correction, which is proved to be better than sign correction for improving correlation between the original signal and the restored signal. The experimental result shows that the proposed method outperforms the sign correction method. Next, we investigated several methods to use two bits for correcting one coefficient. From the experimental results, the combination of two-bit correction and one-bit correction gave the best result.
Year
Venue
Keywords
2008
International Journal of Innovative Computing Information and Control
Packet loss concealment, MP3, Side information, Sign correction, Correlation
Field
DocType
Volume
Packet loss concealment,Signal processing,Audio codec,Computer science,Modified discrete cosine transform,Network packet,Transform coding,Speech recognition,Correlation,Quantization (signal processing)
Conference
6
Issue
ISSN
Citations 
3B
1349-4198
3
PageRank 
References 
Authors
0.58
0
5
Name
Order
Citations
PageRank
akinori ito1133.64
toshiyuki sakai2132.75
kiyoshi konno330.58
shozo makino430.58
Motoyuki Suzuki513424.77