AMR to MP4 Converter
Batch convert amr files to mp4 online. Change amr to mp4 on Windows, Mac, Iphone or Android in a couple of clicks.
Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.
How to convert AMR files to MP4 online?
Step-by-step instructions for converting amr files to mp4
Click "Choose File" button to select a amr file on your computer. AMR file size can be up to 100 Mb.
Convert AMR to MP4
Click "Convert" button to start conversion.
Download your MP4
When the conversion process is complete, you can download the MP4 file.
- First you need to add file for conversion: drag and drop your AMR file or click the "Choose File" button. Then click the "Convert" button. When AMR to MP4 conversion is completed, you can download your MP4 file.
- Audio conversion is pretty fast. You can change AMR to MP4 in a few seconds.
- Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including AMR to MP4) is absolutely safe.
- Yes, you can use AnyConv on any operating system that has a web browser. Our AMR to MP4 converter works online and does not require software installation.
Information about AMR and MP4 file formats
|Full name||AMR - Adaptive Multi-Rate||MP4 - MPEG-4 Part 14|
|File extension||.amr, .3ga||.mp4, .m4a, .m4p, .m4b, .m4r, .m4v|
|Developed by||3GPP||International Organization for Standardization|
|Type of format||Audio compression format||Media container|
|Description||The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1999 and is now widely used in GSM and UMTS.||MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.|
|Technical details||AMR speech codec consists of a multi-rate narrowband speech codec that encodes narrowband (200-3400 Hz) signals at variable bit rates ranging from 4.75 to 12.2 kbit/s with toll quality speech starting at 7.4 kbit/s. Sampling frequency 8 kHz/13-bit (160 samples for 20 ms frames), filtered to 200-3400 Hz.||Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. A separate hint track is used to include streaming information in the file.|
|File conversion||AMR conversion||MP4 conversion|
|Associated programs||Audacity, FFmpeg, MPlayer, QuickTime, VLC media player||Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player|