AMR to MP4 Converter
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What is a AMR file?
AMR stands for Adaptive Multi-Rate audio codec. Originally developed for speech compression in mobile devices, AMR is optimized for human voice and is widely used in GSM and VoLTE calls. It balances audio quality and file size, even in low-bandwidth environments.
While AMR isn’t suitable for high-fidelity music, it plays a key role in mobile communications. Many older phones and voice recorders save audio in this format, making it useful for call recordings and voicemail storage.
How to open AMR files
AMR files can be opened with VLC, Audacity (with FFmpeg), and various mobile apps. They're especially common in call recording apps and VoIP systems.
To convert AMR to more compatible formats like MP3 or WAV, AnyConv provides a simple online solution.
Key facts about AMR
- Full name: Adaptive Multi-Rate Audio Codec
- Extension: .amr
- MIME type: audio/amr
- Developed by: Ericsson
- Initial release: 1998
Useful links and resources
What is a MP4 file?
MP4 (MPEG-4 Part 14) is one of the most widely used video container formats in the world. It supports high-quality video and audio, subtitles, and still images in a compact file size.
MP4 is ideal for streaming, downloading, and sharing content across nearly all devices and platforms, making it a universal standard for video.
How to open MP4 files
MP4 is universally supported by nearly every media player, browser, and mobile device. It works on Windows, macOS, iOS, Android, and Linux without the need for additional codecs.
Use AnyConv to convert MP4 to other formats like AVI, MOV, or MKV depending on your needs.
Key facts about MP4
- Full name: MPEG-4 Part 14
- Extension: .mp4
- MIME type: video/mp4
- Developed by: ISO/IEC
- Initial release: 2001
Useful links and resources
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❓ Frequently Asked Questions
- Do I need to register to convert AMR files?Not at all! You can convert AMR to MP4 without signing up or installing anything.
- Is it safe to convert AMR to MP4 on AnyConv?Absolutely. All AMR and MP4 files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
- Will the quality change after converting AMR to MP4?We do our best to preserve the original quality during AMR to MP4 conversion. The result is accurate and clean.
- How long does it take to convert AMR to MP4?Most conversions from AMR to MP4 take just a few seconds — even for larger files.
- Can I upload more than one AMR file?Yes, batch conversion is supported. You can convert multiple AMR files to MP4 at once — fast and easy.
- What browsers support AMR to MP4 conversion?All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting AMR to MP4 on any platform.