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File converter / Audio / AMR

Online AMR converter

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Choose file to convert to .amr
or drag and drop file

You can convert music or sound to AMR format with free online converter.

How to convert to amr
Step 1

Upload file

Select file, which you want to convert from your computer, Google Drive, Dropbox or drag and drop it on the page
Step 2

Select «to amr»

Select amr or any other format, which you want to convert (more 200 supported formats)
Step 3

Download your amr file

Wait till your file will be converted and click download amr -file

Online and free amr converter

Fast and easy
Just drop your amr files on the page and you can convert it to more than 250 different file formats without registration, giving an email or watermark.
Don't worry about security.
We delete uploaded amr files instantly and converted files after 24 hours. All files transfer with secured an advanced level of SSL encryption.
All in the cloud
You don't need to install any software. All amr conversions make in the cloud and don't use any resources of your computer.
Adaptive Multi-Rate Codec File
File extension .amr
File category audio
Description AMR is a compressed file format that functions to enhance speech coding and it consists multiple sampling rates narrow band devices used in encoding or decoding. Recording of AMR files can be done using mobile phones. For video and audio files to play at the same time or accomplish random access memory, one can utilize the 3GPP format. 160 20- millisecond samples embedded in each frame are coded using AMR using ACELP, DTX, VAD and CNG. Recorded AMR files can be converted into other files allowing their use and for them to be distributed.
Technical details AMR has the ability of encoding signals of ranging from 4.75 to 12.2 kbit/s with quality that begins at 7.4 kbit/s.3GPP took up file format in 1999. It is a method that is utilized by GSM and UMTS, it is uses link adaptation to select one of the eight different bit rates. Link adaptation is optimized by AMR with the best codec devices that exist for it to be used by radio channels and capacity requirements. This only works if the connection is good enough to prevent the loss of audio quality.
Programs
Apple QuickTime
Realplayer
VLC media Player
Main program Audacity
Developer 3rd Generation Partnership Project (3GPP)
MIME type
audio/amr

FAQ

❓ How can I convert amr?
Firstly, select a amr file you want to convert or drag and drop it. Secondly, select a format you want to convert your file to. Then click convert and wait until your file is converted
⏳ How long should I wait to convert amr?
Audio conversion usually takes a few seconds. You will convert amr very quickly.
🛡️ Is it secure to convert amr on OnlineConvertFree?
Sure! We delete your uploaded and converted files, so nobody has access to your information. All types of conversion on OnlineConvertFree (including amr) is 100% safe.
📱 Can I convert amr without software installation?
Absolutely! OnlineConvertFree doesn’t require installation. You can convert any files (including amr) online on your computer or mobile.