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The Adaptive Multi-Rate (AMR, AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding.AMR is a multi-rate narrowband speech codec that encodes narrowband (200–3400 Hz) signals at variable bit rates ranging from 4.75 to 12.2 kbit/s with toll quality [3] speech starting at 7.4 kbit/s.
EchoLink VoIP Amateur Radio Software (Voice) 5199: Unofficial: EchoLink VoIP Amateur Radio Software (Voice) 5200: Unofficial: EchoLink VoIP Amateur Radio Software (Information) 5201: Unofficial: Iperf3 (Tool for measuring TCP and UDP bandwidth performance) 5222: Yes: Reserved: Extensible Messaging and Presence Protocol (XMPP) client connection ...
For online streaming, typically the .PLS file would be downloaded just once from the media source—such as from an online radio station—for immediate or future use. While most computers and players automatically recognize the .PLS format, the first time a PLS file is used on a computer, the media player's settings may need to be changed to ...
Instead, they link to a .ram (Real Audio Metadata) or SMIL file. This is a small text file containing a link to the audio stream. When a user clicks on such a link, the user's web browser downloads the .ram or .smil file and launches the user's media player. The media player reads the PNM or RTSP URL from the file and then plays the stream. [4]
Subsequently, it evolved into gateways through platforms like Zello and Teamspeak. In 2021, a part of the system was split and migrated to svxlink, along with its classic application. The first Tetra Repeater for Ham Radio use in Romania was licensed under the call sign YO8TEH-1, while the second TMO repeater was licensed under the call sign YO8Q.
Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low-end embedded processors.
Mumble is a voice over IP (VoIP) application primarily designed for use by gamers and is similar to programs such as TeamSpeak. [4] Mumble uses a client–server architecture which allows users to talk to each other via the same server. [5] It has a very simple administrative interface and features high sound quality and low latency. All ...
The first public release of the TeamSpeak 3 SDK [7] was on June 5, 2008, with the integrated solution in the MMO game Vendetta Online. [8] Open beta of TeamSpeak 3 was released on December 9, 2009. [9] [10] Open beta was closed on August 10, 2011 and replaced with TeamSpeak 3.0.0 Final, which was the first stable release of TeamSpeak 3. [11]