Free online OPUS to AMR converter
How to convert opus audio file to AMR (Adaptive Multi-Rate) file.
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How to convert opus to amr file
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FFmpeg can convert an Opus audio file to an AMR (Adaptive Multi-Rate) file.
It doesn't look like any audio converters could easily convert OPUS to AMR with just one click and support direct opus to amr conversion. However, some audio converters might convert opus to WAV, which can then be used for a WAV to AMR conversion. To do such conversions to WAV or MP3 audio, you can use Audacity, a popular open-source audio editor that has support for importing Opus audio files. However, Audacity does not natively support AMR when exporting to AMR format. If you have an .mp3 file, you can try to convert MP3 to AMR.
Convert .opus to .amr using FFmpeg:
FFmpeg is a command line tool. It is not a common application with a simple UI but very powerful.
First, you need to download and install it from the official website. The version depends on your operating system.
Converting the opus file:
Open a command prompt or terminal and use the following command: ffmpeg -i audio-file-source.opus -ar 8000 -ac 1 -c:a libopencore_amrnb audio-file-target.amr
- -i audio-file-source.opus: points to the Opus audio source file.
- -ar 8000: Adjusts the audio to an 8 kHz frequency, used for AMR.
- -ac 1: Configures the audio as mono, a typical setup for AMR.
- -c:a libopencore_amrnb: Defines the codec used in the AMR audio conversion.
- audio-file-target.amr: The name of the converted AMR audio file.
Once the conversion process is done, you'll have the audio-file-target.amr file together in the same directory with your original Opus file.
Note: FFmpeg is known to handle numerous formats; it's essential to confirm that your specific version supports both Opus and AMR by reviewing the codec list using ffmpeg -codecs. If your FFmpeg lacks the required codecs, consider acquiring a different build or compiling FFmpeg on your own, ensuring it has the needed capabilities.
OPUS vs AMR: format comparison
How the OPUS and AMR formats compare on the properties that matter most for this conversion.
| Property | .OPUS Opus | .AMR Adaptive Multi-Rate Audio Codec |
|---|---|---|
| Compression | Lossy | Lossy |
| Audio quality | High | Low |
| Audio channels | Multichannel | Mono |
| Metadata support | Extensive | Basic |
| Streaming | Yes | Yes |
| Opens in a web browser | Yes, natively | No |
| Typical file size | Small | Very small |
| Open standard | Yes | Partly open |
| Best used for | Streaming | Speech and voice |
| Introduced | 2012 | 1999 |
| Developer | Xiph.Org Foundation | 3GPP |
| MIME type | audio/opus | audio/amr |
Suggested software and links: opus to amr converters
Frequently asked questions
Is the OPUS to AMR converter free?
Yes, converting OPUS to AMR on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.
How large can my OPUS file be?
You can upload OPUS files up to 1000 MB and convert up to 100 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert OPUS to AMR?
No. The OPUS to AMR conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid OPUS file for this OPUS to AMR conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.