Convert AMR to MP4
Choose file to convert
We offer a free online converter that can convert audio files from amr format to mp4 format, along with a range of other audio formats.
How to convert amr to mp4?
Step 1
Upload amr-file
You can select amr file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Step 2
Select «to mp4»
Choose mp4 or any of the other 200+ supported formats you'd like to convert to.
Step 3
Download your mp4 file
Please wait for the conversion to complete, then click on the download button to obtain your converted file in the mp4 format.
The security of your files is our priority
Understanding the importance of the security of our users' data, we have implemented a number of measures to ensure reliable file conversion without the risk of information leakage or privacy violations.
Data encryption
All information uploaded to our platform is SSL encrypted, ensuring privacy during transmission.
Safe storage
After the conversion is completed, the files are stored on secure servers for 24 hours and are automatically destroyed, excluding access by third parties.
Harmless scripts
Our file conversion tools are regularly tested for malicious code or vulnerabilities to eliminate the risk of a potential cyber attack.
Best tool to convert amr to mp4
amr to mp4 Fast and easy
Simply drag and drop your amr files onto the webpage, and you'll be able to convert them to mp4 or over 250 different file formats, all without having to register, provide an email address, or include a watermark.
Secure amr to mp4 Conversion
As soon as you upload your amr files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
You don't have to go through the hassle of installing any software. We handle all amr to mp4 conversions in the cloud, which means that none of your computer's resources will be used in the process.
Adaptive Multi-Rate Codec File
| Extension | .amr |
| Category | 🔵 audio |
| Programs | 🔵 Apple QuickTime 🔵 Realplayer 🔵 VLC media Player |
| Main program | 🔵 Audacity |
| Description | 🔵 AMR is a compressed file format that is designed to improve speech coding and includes multiple sampling rates for narrowband devices used in encoding or decoding. AMR files can be recorded using mobile phones. To play video and audio files simultaneously or achieve random access memory, one can use the 3GPP format. Each frame contains 160 20-millisecond samples that are encoded using AMR with ACELP, DTX, VAD, and CNG. Recorded AMR files can be converted to other formats for distribution and use. |
| Technical details | 🔵 AMR is capable of encoding signals in the range of 4.75 to 12.2 kbit/s, with quality starting at 7.4 kbit/s. 3GPP adopted this file format in 1999, which is used by GSM and UMTS. It employs link adaptation to choose from eight different bit rates. AMR optimizes link adaptation by selecting the best codec devices for use on radio channels and capacity requirements. However, this optimization only works if the connection is strong enough to prevent any loss of audio quality. |
| Developer | 🔵 3rd Generation Partnership Project (3GPP) |
| MIME type | 🔵 audio/amr |
MPEG-4 Video File
| Extension | .mp4 |
| Category | 🔵 video |
| Programs | 🔵 Microsoft Windows Media Player 🔵 VLC media player 🔵 MPlayer 🔵 Eltima Elmedia Player 🔵 Winamp 🔵 Apple QuickTime Player 🔵 Apple iTunes |
| Description | 🔵 .mp (MPEG- Part ) The .mp file format is a digital multimedia container format most commonly used to store video and audio, but it can also be used to store other data such as subtitles and still images. MP is based on the Apple MOV format, but adds support for various other MPEG features. It's a universally accepted format with high compatibility across all platforms and devices, widely used for streaming over the internet, for storing digital video and audio streams, and for video playback on mobile devices. |
| Technical details | 🔵 The `.mp4` format, or MPEG-4 Part 14, is a versatile multimedia container with these features: - **Standardization**: Standardized by ISO/IEC as ISO/IEC 14496-14. - **Versatility**: Stores video (including 4K), audio, text (subtitles), and 3D graphics. - **Compression**: Uses MPEG-4 lossy compression, reducing file size with minimal quality loss. - **Video/Audio Codecs**: Commonly uses H.264 (MPEG-4 Part 10) for video and AAC for audio. - **Compatibility**: Widely supported by media players, editing tools, and devices. - **Streaming**: Suitable for internet streaming and progressive download. - **Metadata**: Supports metadata like titles, artist, GPS data, and scene descriptions. - **Chapter Support**: Enables easy navigation within videos. - **Subtitles/Closed Captions**: Includes subtitles/closed captions, embedded or as separate tracks. - **DRM Support**: Can be protected with DRM systems. |
| Developer | 🔵 Moving Picture Experts Group |
| MIME type | 🔵 audio/mp4 🔵 video/mp4 |