AMR
AMR audio formatUsed for recorded sound meant for playback over time.
- Family
- Audio
- MIME
- audio/amr
Convert AMR to OGG online and see exactly what timed-stream transcoding changes, what OGG still can't promise, and how to verify the result.
The waveform and channel layout inside AMR is decoded first, then re-encoded into OGG's own codec and container profile. Duration typically holds steady even as compression, channel mapping, frame cadence, or auxiliary streams shift underneath it. AMR reading follows narrowband or wideband speech frames and their mode changes, prioritizing correct frame timing over music-oriented metadata. The OGG destination packages codec packets in timestamped pages with Vorbis-style comments, prioritizing open playback over MP4-family metadata conventions.
Decoded media - Adaptive Multi-Rate speech coding designed for mobile telephony at narrowband or wideband voice rates. Encoded delivery profile - An open Ogg container commonly holding Vorbis audio in this workflow.
Used for recorded sound meant for playback over time.
Designed for music, speech, and time-based sound.
AMR is optimized for speech rather than music, and many general players lack the required decoder.
Some business and mobile apps do not accept OGG, and lossy Vorbis transcoding cannot recover source detail.
The verified OGG profile uses Vorbis variable-quality encoding at quality level 5.
Listen to consonants and background noise, then confirm narrowband or wideband mode, duration, and phone compatibility.
Listen for tonal artifacts and confirm the actual codec, channel layout, duration, and target-app support.
Confirm the receiving player, editor, or publishing service actually names OGG's container and codecs before switching; stay with AMR if extra tracks or original encoding need to survive intact.