A Quality-Based Dynamic Voice Recovery Mechanism For Internet Telephony Systems
نویسنده
چکیده
An Internet telephony system is basically a computer-form of a conventional telephone to support real-time voice communication between two or more users who are connected to the Internet. Internet telephony circumvents expensive international telephone toll charges by using Internet as an intermediary medium to transport voice signals between two users. In doing so, transcontinental telephone calls are achieved at the mere costs of local telephone calls and nominal Internet connectivity charges. However, the transmission of digitised voice signals can be lost in the packet switched network environment of TCP/IP, thereby causing intermittent voice losses and quality degradations. In this paper, a quality-based dynamic voice recovery mechanism is proposed to enhance the quality and reliability of real-time voice communication. It minimises packet loss by controlling the transmission rate dynamically from the source based on the network congestion condition with a quality-based voice recovery at the destination.
منابع مشابه
Enhancing the quality of Internet voice communication for Internet telephony systems
Internet real-time voice communication involves transmitting digitised voice signals which can be lost in the packet switched network environment of TCP/IP, thereby causing intermittent voice losses and quality degradations. Various methods such as silence substitution, waveform substitution, sample interpolation, Xor mechanism, embedded speech coding, and combined rate and control mechanism ha...
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