AMR to MP4 Converter
Convert AMR to MP4 online, for free.
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How to Convert AMR to MP4?
- Click the “Choose Files” button to select your AMR files.
- Click the “Convert to MP4” button to start the conversion.
- When the status change to “Done” click the “Download MP4” button
Easy to Use
Simply upload your AMR files and click the convert button. You can also batch convert AMR to MP4 format.
Best Quality
We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).
Free & Secure
Our AMR to MP4 Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 2 hours.
What is an AMR (Adaptive Multi-Rate Codec) file?
Adaptive Multi-Rate (AMR) is a compressed audio file that is often used for speech coding. The AMR speech codec focuses on narrowband signals, which makes it ideal for voice recordings and radio. It is used regularly in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS).
How to open an AMR file?
Since AMR files are often used on mobile phones, including for MMS messaging, most 3G mobile devices are able to open them. AMR also opens with VLC media player, QuickTime, RealPlayer, and Xine.
Other software, such as the free audio-editing software Audacity, can open AMR files. Download audacity easily at SourceForge.net. Because AMR files are heavily compressed and focused on narrowband signals, they are not suitable for music files.
Developed by: 3rd Generation Partnership Project (3GPP)
Initial Release: 1999
Useful links:
https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec
What is an MP4 (MPEG-4) file?
MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. It is also a popular video format for streaming over the Internet, such as on YouTube. Many consider MP4 to be one of the best video formats available today.
How to open an MP4 file?
MP4 files open in the operating system's default video player. Simply double-clicking the file opens it. There is no need for third-party software. On Windows, it opens in Windows Media Player. On Mac, it opens in QuickTime.
On some devices, particularly mobile, opening this file type can be problematic. MP4 is a container that contains various kinds of data, so when there is a problem opening the file, it usually means that data in the container (an audio or video codec) is not compatible with the device’s OS. To resolve this issue, try VLC media player.
Developed by: Moving Picture Experts Group (MPEG)
Standard: ISO/IEC 14496
Initial release: 1999
Useful links:
Convert other files to MP4 format
FreeConvert.com can convert your other files to MP4 format:
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Convert Your AMR files to other formats
FreeConvert.com can convert your AMR files to these other formats:
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