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Adaptive Multi-Rate audio codec - Wikipedia, the free encyclopedia

The Adaptive Multi-Rate (AMR or AMR-NB) audio codec is a patented audio data compression scheme optimized for speech coding . AMR was adopted as the standard speech codec by 3GPP in October 1999 and is now widely used in GSM [ 3 ] and UMTS . It uses link adaptation to select from one of eight different bit rates based on link conditions. AMR is also a file format for storing spoken audio using the AMR codec. Many modern mobile telephone handsets can store short audio recordings in the AMR format, and both free and proprietary programs exist (see Software support ) to convert between this and other formats, although AMR is a speech format and is unlikely to give ideal results for other audio. http://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec
Un article de Wikipédia, l'encyclopédie libre. L' Adaptive Multi Rate (AMR) ou Adaptive Multi Rate narrow-band (AMR-NB) est un format de compression audio de faible qualité normalisé par l' ETSI . Pour convertir un fichier .amr dans un format conteneur (ie. WAV ), plusieurs outils existent (souvent des shareware ou payants), comme par exemple FormatFactory .

Adaptive Multi Rate - Wikipédia

http://fr.wikipedia.org/wiki/Adaptive_Multi_Rate
http://korben.info/convertir-mp3-ogg-flac-ape-wav.html

FlicFlac – Le convertisseur audio pas suisse pour les enfants | Korben

Je viens débusquer sous un fourré un petit soft capable de convertir les formats MP3, APE, FLAC, OGG ou WAV vers la même chose dans n'importe quel sens. FlicFlac Audio Converter est une application portable et gratuite, qui permet simplement en glissant déposant vos morceaux dessus, de les convertir. Y'a rien à installer en plus, pas de paramétrage complexe... La conversion audio réduite à son plus simple appareil et 100% efficace.
http://www.sector-seven.net/software/flicflac

FlicFlac Audio Converter - Sector Seven

If you are looking for more advanced features, you may want to try File Blender which supports audio conversion, video conversion and many other file conversion and processing functions.