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Why convert AMR to M4A?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the AMR format
AMR — Adaptive Multi-Rate Audio
AMR is an audio codec optimized for speech compression, used in mobile phone voice calls and voice messages. It adapts its bitrate to match speech characteristics, achieving excellent voice quality at very low bitrates.
Common uses
- Mobile phone voice recordings
- WhatsApp and messaging voice notes
- VoIP applications
- Voice memo recordings
About the M4A format
M4A — MPEG-4 Audio
M4A is Apple's audio-only MPEG-4 container format, used by iTunes and Apple Music. It typically contains AAC audio and is functionally superior to MP3 at the same file size. It is the default export format from iTunes.
Common uses
- iTunes and Apple Music downloads
- iPhone voice memos
- Apple ecosystem audio files
- High-quality music purchases
Related conversions
Other conversions available for AMR and M4A files
Frequently asked questions
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.