Abstract
This paper presents a packet loss concealment (PLC) method based on interpolation by separation odd and even frames to improve speech quality deterioration caused by packet losses for CELP based coders. We applied our scheme to the standard ITU-T G.729 speech coder to evaluate the proposed method. The perceptual evaluation of speech quality (PESQ) and enhanced modified bark spectral distortion (EMBSD) tests under various packet loss conditions confirm that the proposed algorithm is superior to the concealment algorithm embedded in the G.729. The performance measures prove that our concealment method based interpolation is better. (4 pages)
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