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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) …
AMR-WB+, Extended Adaptive Multi-Rate - Wideband …
https://www.loc.gov/preservation/digital/formats/fdd/fdd000253.shtml
"Principles of the extended adaptive multi-rate wideband codec. The AMR-WB+ audio codec contains all the AMR-WB speech codec modes 1-9 and AMR-WB VAD and DTX. AMRWB+ extends the AMR-WB codec by adding TCX, bandwidth extension, and stereo. The AMR-WB+ audio codec processes input frames equal to 2048 samples at an internal sampling …
opencore-amr download | SourceForge.net
https://sourceforge.net/projects/opencore-amr/
Download opencore-amr for free. Audio codecs extracted from Android Open Source Project. Library of OpenCORE Framework implementation of Adaptive Multi Rate Narrowband and Wideband (AMR-NB and AMR-WB) speech codec. Library of VisualOn implementation of Adaptive Multi Rate Wideband (AMR-WB) encoder and Advanced Audio …
RFC 4867 - RTP Payload Format and File Storage Format for ...
https://tools.ietf.org/html/rfc4867
The following acronyms are used in this document: 3GPP - the Third Generation Partnership Project AMR - Adaptive Multi-Rate (Codec) AMR-WB - Adaptive Multi-Rate Wideband (Codec) CMR - Codec Mode Request CN - Comfort Noise DTX - Discontinuous Transmission ETSI - European Telecommunications Standards Institute FEC - Forward Error Correction SCR - Source …
VoiceAge - AMR-WB+ (Extended Adaptive Multi-Rate Wideband)
http://www.voiceage.com/AMR-WBplus.html
VoiceAge - AMR-WB+ (Extended Adaptive Multi-Rate Wideband) AMR-WB+. Developed jointly by Ericsson, Nokia and VoiceAge, the AMR-WB+ (Extended Adaptive Multi-Rate Wideband) speech and audio codec is the 3GPP-recommended hi-fi audio codec for MMS, PSS and MBMS services over GSM and WCDMA networks. It is also recommended for DVB-H applications.
GSM Audio Codec: Vocoder: AMR, CELP etc .. » …
https://www.electronics-notes.com/articles/connectivity/2g-gsm/audio-codecs-vocoders-amr-celp.php
Adaptive Multi-Rate Wideband, AMR-WB codec, also known under its ITU designation of G.722.2, is based on the earlier popular Adaptive Multi-Rate, AMR codec. AMR-WB also uses an ACELP basis for its operation, but it has been further developed and AMR-WB provides improved speech quality as a result of the wider speech bandwidth that it encodes.
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