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File converter / Audio / Video / Convert to AMR / MP4 converter / AMR to MP4

Convert AMR to MP4

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Choose file to convert to .mp4
or drag and drop file

You can convert AMR file to MP4 as well as to variety of other formats with free online converter.

How to convert amr to mp4?

How to convert mp4 to amr?
Step 1

Upload amr-file

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

Convert amr to mp4

Select mp4 or any other format, which you want to convert.
Step 3

Download your mp4-file

Wait till your conversion process will be completed and click download converted mp4 file.

Online and free amr to mp4 converter

Fast and easy
Just drop your amr files on the page to convert mp4 or 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 mp4 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 to mp4 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 of multiple sampling rates narrowband devices used in encoding or decoding. Recording of AMR files can be done using mobile phones. For video and audio files to play simultaneously 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 can encode signals 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 uses link adaptation to select one of the eight different bit rates. AMR optimizes link adaptation with the best codec devices 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

MPEG-4 Video File

File extension .mp4
File category video
Description The MP4 files (MPEG-4 part 14 files) are the multimedia files used with multiple stations and video players simultaneously. They can store digital audio streams and digital video, and other suitable amounts of data like subtitle tracks. MP4 video format is a widespread file format due to its very own container format. It is also used with multiple platforms such as iTunes, PlayStation, and portable PSP. It is also a popular file format for streaming over the Internet. For instance, YouTube videos have MP4 extension.
Technical details The technical details of MP4 files differ in significant aspects and are unique as well, first released in 2001 under ISO/IEX 14496-1:2001 standards. It uses an AAC encoding to wear off unauthorized users from copying the data. The main purpose is streaming rather than sending video or audio information. MP4 files can be used to store audio streams and text information, subtitles, and still images. At the same time, MPEG format can’t do this. Anyhow the processing of data into MPEG-4 part 14 requires private streams such as the use of hint tracks to include the information.
Programs
Microsoft Windows Media Player
VLC media player
MPlayer
Eltima Elmedia Player
Winamp
Apple QuickTime Player
Apple iTunes
Developer Moving Picture Experts Group
MIME type
audio/mp4
video/mp4

FAQ

❓ How can I convert amr to mp4?
Firstly, select a amr file you want to convert or drag and drop it. Secondly, select mp4 or any other 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 to mp4?
Audio conversion usually takes a few seconds. You will convert amr to mp4 very quickly.
🛡️ Is it secure to convert amr to mp4 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 to mp4) is 100% safe.
📱 Can I convert amr to mp4 without software installation?
Absolutely! OnlineConvertFree doesn’t require installation. You can convert any files (including amr to mp4) online on your computer or mobile.