AMR
AMR audio formatUsed for recorded sound meant for playback over time.
- Family
- Audio
- MIME
- audio/amr
Convert AMR to MOV online and see exactly what audio-only container delivery changes, what MOV still can't promise, and how to verify the result.
AMR audio is what actually exists here, and it gets encoded straight into a MOV media container. No artwork or motion is invented, so the resulting MOV file can carry no meaningful video stream at all. AMR reading follows narrowband or wideband speech frames and their mode changes, prioritizing correct frame timing over music-oriented metadata. MOV delivery uses QuickTime track and sample structures suited to Apple and editing workflows, with codec, color, time-scale, chapter, and cross-platform support checked separately.
Decoded media - Adaptive Multi-Rate speech coding designed for mobile telephony at narrowband or wideband voice rates. Encoded delivery profile - A QuickTime container written here with H.264 video and AAC audio.
Used for recorded sound meant for playback over time.
Designed for editing and Apple-oriented video workflows.
AMR is optimized for speech rather than music, and many general players lack the required decoder.
MOV support varies outside Apple and editing software, while source captions or extra tracks may not be retained.
The verified MOV profile uses H.264 video at CRF 23 and AAC audio at 192 kbit/s.
Listen to consonants and background noise, then confirm narrowband or wideband mode, duration, and phone compatibility.
Scrub the timeline and verify frame size, frame rate, audio sync, color, and target-app playback.
Use this route only when the receiving workflow specifically accepts audio inside MOV. It is not a music-visualizer or slideshow generator.