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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.
The Download Delivery Method is intended for “download and play” services. A File Repair service may be offered to compensate for unreliable delivery. MBMS has been standardized in various groups of 3GPP (Third Generation Partnership Project), and the first phase standards are found in UMTS release 6. As Release 6 was functionally frozen by ...
3GP is defined in the ETSI 3GPP technical specification. [1] 3GP is a required file format for video and associated speech/audio media types and timed text in ETSI 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS), Multimedia Broadcast/Multicast Service (MBMS) and Transparent end-to-end Packet-switched Streaming Service ().
This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.
MediaHuman Audio Converter is able to accept many popular audio file formats, such as MP3, WMA and WAV. The software is also capable of importing files to iTunes (Music app on macOS Catalina and above [4]). [5] MediaHuman Audio Converter is designed to use multiple CPU cores when converting files in ‘batch mode’. [6]
3GPP originally developed the AMR-WB+ audio codec for streaming and messaging services in Global System for Mobile communications and Third Generation cellular systems. Its primary target applications are Packet-Switched Streaming service ( PSS ), Multimedia Messaging Service (MMS) and Multimedia Broadcast and Multicast Service (MBMS).
Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.
An audio conversion app (also known as an audio converter) transcodes one audio file format into another; for example, from FLAC into MP3. It may allow selection of encoding parameters for each of the output file to optimize its quality and size.