AMR to MP4 Converter
Select files for conversion or just drag and drop them to the upload area
How to convert AMR files to MP4 online?
Step 1.
Upload AMR-file
Click "Choose File" button to select a amr file on your computer. AMR file size can be up to 50 Mb.
Step 2.
Convert AMR to MP4
Click "Convert" button to start conversion.
Step 3.
Download your MP4
When the conversion process is complete, you can download the MP4 file.
FAQ
- ❓ How can I convert AMR to MP4?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.
- ⏱️ How long does it take to convert AMR to MP4?Audio conversion is pretty fast. You can change AMR to MP4 in a few seconds.
- 🛡️ Is it safe to convert AMR to MP4 on AnyConv?Of course! We delete uploaded files immediately, and converted ones after 24 hours. No one has access to your files. File conversion (including AMR to MP4) is absolutely safe.
- 💻 Can I convert AMR to MP4 on Mac OS or Linux?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
| Name | AMR | MP4 |
| Full name | AMR - Adaptive Multi-Rate | MP4 - MPEG-4 Part 14 |
| File extension | .amr, .3ga | .mp4, .m4a, .m4p, .m4b, .m4r, .m4v |
| MIME type | audio/amr | video/mp4 |
| 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.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. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (mp4ra.org). |
| 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 |
| Wiki | https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec | https://en.wikipedia.org/wiki/MPEG-4_Part_14 |