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Speex: A Free Codec For Free Speech
Nov 17 , 2021
Overview Speex is an Open Source/Free Software patent-free audio compression format designed for speech. The Speex Project aims to lower the barrier of entry for voice applications by providing a free alternative to expensive proprietary speech codecs. Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs. Finally, Speex is ...
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FreeSWITCH: Free And Open Source Softswitch
Dec 02 , 2021
What is FreeSWITCH? FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device. Combined with our hosted cloud platform, SignalWire, FreeSWITCH can inter...
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ARP：Address Resolution Protocol
Dec 02 , 2021
What is ARP? The Address Resolution Protocol(ARP) is a communication protocol used to discover the data-link layer address(Layer 2 address like Media Access Control(MAC) address) associated with an Internet layer address(Layer 3 address like IPv4 address). ARP was defined in 1982 by RFC 826. ARP is a request-response or request-reply protocol in which one device sends a request to another device a...
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FFmpeg: Using FFmpeg On PA System
Dec 10 , 2021
What Is FFmpeg? FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation. It is also highly portable: FFmpeg compiles, ru...
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VLC Media Player
Dec 24 , 2021
What is VLC media player? VLC media player (previously the VideoLAN Client and commonly known as simply VLC) is a free and open-source, portable, cross-platform media player software and streaming media server developed by the VideoLAN project. VLC is available for desktop operating systems and mobile platforms, such as Android, iOS and iPadOS. VLC is also available on digital distribution platfor...
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JRTPLIB: RTP Open Source Protocol Library
Dec 24 , 2021
What is JRTPLIB? JRTPLIB is an object-oriented library written in C++ which offers support for the Real-time Transport Protocol (RTP), defined in RFC 1889. It makes it very easy to send and receive RTP packets and the RTCP (RTP Control Protocol) functions are handled entirely internally. The latest version of the library is 3.11.1 (March 2017). The 3.x.x series is a complete rewrite of the library...
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STUN: Session Traversal Utilities for NAT
Dec 31 , 2021
STUN Session Traversal Utilities for NAT (STUN) is a standardized set of methods, including a network protocol, for traversal of network address translator (NAT) gateways in applications of real-time voice, video, messaging, and other interactive communications. The software of Tonmind IP Speaker-Tonmind PA System Lite has built-in SIP Server, which adopts STUN and ICE technologies to solve NAT pe...
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WebRTC: Web Real-Time Communication
Jan 07 , 2022
What Is WebRTC? WebRTC (Web Real-Time Communication) is a free, open framework for the web that enables the real-time communication (RTC) its name promises to deliver. As a combination of standards, protocols, and JavaScript APIs, WebRTC leverages peer-to-peer connections between browsers to support a near-simultaneous exchange of data — without requiring third-party software or plug-ins. In...
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