An Improved Packet Loss Concealment Method for Mobile Audio Coding
نویسندگان
چکیده
منابع مشابه
An Improved Packet Loss Concealment Method for Mobile Audio Coding
In this paper, we propose an improved packet loss concealment (PLC) algorithm for ACELP-based speech coders in order to improve the quality of decoded speech at the receiver. Conventional receiver-based PLC algorithms in the AMR-WB+ speech codec are usually based on speech correlations to reconstruct the decoded speech of the lost frames by using parameter information obtained from the previous...
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Voice-over-IP (VoIP), the transmission of packetized voice over IP networks, is gaining much attention as a possible alternative to conventional public switched telephone networks (PSTN). However, impairments present on IP networks, namely jitter, delay and channel errors can lead to the loss of packets at the receiving end. This packet loss degrades the speech quality. Model-based speech coder...
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H. Sanneck , A. Stenger, K. Ben Younes, B. Girod Telecommunications Institute, University of Erlangen-Nuremberg D-91058 Erlangen, Germany [email protected], fstenger, younes, [email protected] Abstract We present a new error concealment technique for audio transmission over heterogeneous packet switched networks based on time-scale modi cation of correctly received packets....
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We propose a method for the concealment of frame erasures in packet switched speech communication systems such as Voice over IP that is particularly tailored to the case of wireless transmission. At the receiver, the concealment algorithm is assisted by specific side information that is communicated via a steganographic channel within the bitstream of the employed speech codec. An exemplary imp...
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ژورنال
عنوان ژورنال: The Open Automation and Control Systems Journal
سال: 2014
ISSN: 1874-4443
DOI: 10.2174/1874444301406010188