Adaptive jitter buffer-packet loss concealment

Details Adaptive jitter buffer-packet loss concealment Adaptive jitter buffer-packet loss concealment

2011-01-18

2011-01-18

Nguyen, Steven H (Department: 2473)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C704S200000

Reexamination Certificate

active

07873064

ABSTRACT:
An audio decoding system comprises a buffer module, an audio decoding module, a packet loss concealment module, an uncompressed adjustment module, and a playout control module. The buffer module receives packets including audio data. The audio decoding module decodes the audio data and outputs decoded audio samples. The packet loss concealment module outputs adjusted audio samples based on the decoded audio samples. The adjusted audio samples include reconstructed samples when packet loss occurs. The uncompressed adjustment module incorporates the adjusted audio samples into an output stream of audio samples at a first rate. The playout control module regulates the first rate based on packet delay information.

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GIPS VoiceEngineTM Embedded for IP Phones; Global IP Solutions, Inc.; www.gipscorp.com; Mar. 13, 2007; 2 pages.
The Impact of Adaptive Playout Buffer Algorithm on Perceived Speech Quality Transported Over IP Networks; Pin Hu; Master's Thesis at the University of Plymouth; Sep. 2003; 93 pages.
VOIP Packet Loss Concealment Based on Two-Side Pitch Waveform Replication Technique Using Steganography; Noafumi Aoki; Graduate School of Information Science and Technology, Hokkaido University N14 W9, Kita-ku, Sapporo, 060-0814 Japan; pp. 52-55, year 2004.

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