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AMR - VideoLAN Wiki
https://wiki.videolan.org/AMR
This is an audio codec. The name to use at the command line is sawb . Multimedia Wiki has information on these entries: AMR. AMR (narrow band) AMR (wide band) Wikipedia has information on this entry: AMR format.
Comparison of audio coding formats - Wikipedia
https://en.wikipedia.org/wiki/Comparison_of_audio_coding_formats
AMR - MultimediaWiki
https://wiki.multimedia.cx/index.php?title=AMR
AMR (Adaptive Multi-Rate) is a vocoder employed in low-bitrate applications like mobile phones. There are narrowband and wideband variants of this codec. Retrieved from " https://wiki.multimedia.cx/index.php?title=AMR&oldid=13749 "
AMR, Adaptive Multi-Rate Speech Codec
https://www.loc.gov/preservation/digital/formats/fdd/fdd000254.shtml
From the VoiceAge Web site (consulted in April 2007): The proven, highly efficient and very robust AMR (Adaptive Multi-Rate) narrowband codec is the 3GPP mandatory standard codec for narrowband speech and multimedia messaging services over 2.5G/3G wireless systems based on evolved GSM core networks (WCDMA, EDGE, GPRS). . . . AMR operating at various bit …
AMR-NB - MultimediaWiki
https://wiki.multimedia.cx/index.php?title=AMR-NB
AMR-NB (Adaptive Multi-Rate Narrowband) is a vocoder employed in low-bitrate applications like mobile phones. It is a form of ACELP where A stands for algebraic. The following text aims to be a simpler and more explicit document of the AMR narrow band decoding processes to aid in development of a decoder.
AMR-WB, Adaptive Multi-Rate - Wideband Speech Codec
https://www.loc.gov/preservation/digital/formats/fdd/fdd000255.shtml
Full name. AMR-WB, Adaptive Multi-Rate - Wideband Speech Codec (G.722.2) Description. Audio data compression scheme optimized for speech coding in GSM (Global System for Mobile Communications) and UMTS (Universal Mobile Telecommunications System), an elaboration of AMR, and featuring Algebraic Code Excited Linear Prediction (ACELP) …
Modules - baresip/baresip Wiki
https://github-wiki-see.page/m/baresip/baresip/wiki/Modules
Advanced Audio Codec: account: Account loader: alsa: ALSA audio driver: amr: Adaptive Multi-Rate (AMR) audio codec: aptx: Audio Processing Technology codec (aptX) @premultiply: aubridge: Audio bridge module: audiounit: AudioUnit audio driver for MacOSX/iOS: aufile: Audio module for using a WAV-file as audio input: ausine: Audio sine wave input module: sreimers: …
Convert files from and to AMR format online - AnyConv
https://anyconv.com/amr-converter/
The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1999 and is now widely used in GSM and UMTS. Technical details.
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