Convert OPUS to AMR

Convert OPUS to AMR in your browser. Your audio files are processed on your device and are not uploaded.

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Up to 20 MB per file. You can select multiple files.

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AMR only supports 8000 Hz sample rate for narrowband encoding. This ensures compatibility with standard telephony systems.

AMR only supports mono audio. Stereo input will be downmixed automatically.

Private browser conversion: Your files stay on your device. Large files may take longer, and some formats depend on browser codec support.

How to use this OPUS to AMR Converter?

Choose one or more files or drop them into the input area.
Adjust the available settings, then click Convert. Processing stays in this browser; nothing is uploaded.
Download each result or download a ZIP for multiple files. Results disappear when you leave this page.

{ "convert": "opus-amr", "multiple": true, "from": "opus", "to": "amr", "note": "AMR is a legacy telephony format used in mobile voice calls. It only supports mono (1 channel) audio and a fixed sample rate of 8000 Hz. Bitrate is not user-configurable. Use this conversion only for compatibility with telephony systems.", "controls": [ { "type": "dropdown", "name": "sample_rate", "label": "Sample Rate", "options": [ { "label": "8000 Hz (Required)", "value": 8000 } ], "defaultValue": 8000, "desc": "AMR only supports 8000 Hz sample rate for narrowband encoding. This ensures compatibility with standard telephony systems." }, { "type": "dropdown", "name": "channels", "label": "Audio Channels", "options": [ { "label": "Mono (1 channel)", "value": 1 } ], "defaultValue": 1, "desc": "AMR only supports mono audio. Stereo input will be downmixed automatically." } ], "type": "audio", "operation": "convert" }

Convert OPUS to AMR

1. Add your files

4. Download converted files

How to use this OPUS to AMR Converter?