Enhanced full rate

Enhanced full rate

Enhanced Full Rate or EFR or GSM-EFR is a speech coding standard that was developed in order to improve the quite poor quality of GSM-Full Rate (FR) codec. Working at 12.2 kbit/s the EFR provides wirelike quality in any noise free and background noise conditions. The EFR 12.2 kbit/s speech coding standard is compatible with the highest AMR mode. Although the Enhanced full rate helps to improve call quality, the codec consumes about 5% more energy and so it is recommended for use only when in a poor reception area.

You can activate Enhanced Full Rate codec in some Nokia phones by entering the following code: *3370#

ee also

* Half Rate
* Full Rate
* Adaptive Multi-Rate


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  • Enhanced Full Rate — Pour les articles homonymes, voir EFR. EFR est un acronyme qui signifie Enhanced Full Rate ou, en français, Plein débit amélioré. Il s agit d une norme de téléphonie mobile permettant d assurer une meilleure qualité vocale sur le GSM. Bouygues… …   Wikipédia en Français

  • Enhanced full rate — Pour les articles homonymes, voir EFR. EFR est un sigle qui signifie Enhanced Full Rate ou, en français, Plein débit amélioré. Il s agit d une norme de téléphonie mobile permettant d assurer une meilleure qualité vocale sur le GSM. Bouygues… …   Wikipédia en Français

  • Enhanced full rate — …   Википедия

  • Enhanced Full Rate — …   Википедия

  • Full Rate — or FR or GSM FR was the first digital speech coding standard used in GSM digital mobile phone system. The bit rate of the codec is 13 kbit/s. The quality of the coded speech is quite poor by modern standards, but at the time of development (early …   Wikipedia

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  • Adaptive Multi-Rate — Das Global System for Mobile Communications (früher Groupe Spécial Mobile, GSM) ist ein Standard für volldigitale Mobilfunknetze, der hauptsächlich für Telefonie, aber auch für leitungsvermittelte und paketvermittelte Datenübertragung sowie… …   Deutsch Wikipedia

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  • Adaptive Multi Rate — 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. Le format AMR est souvent utilisé dans la technologie des téléphones mobiles. Mode Débit (kbit/s)… …   Wikipédia en Français

  • Half Rate — or HR or GSM HR is a speech encoding system for GSM developed in the early 1990s. Since the codec, operating at 5.6 kbit/s, requires half the bandwidth of the Full Rate codec, network capacity for voice traffic is doubled, at the expense of audio …   Wikipedia

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