# Convert MKA to AMR

> Convert MKA to AMR online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/mka-to-amr

- Runs in an isolated cloud sandbox with FFmpeg: files are deleted automatically, and the job uses cloud credits.
- Engines: FFmpeg (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "amr"` (paid plans).
- More: [Audio converter](https://www.converterrr.com/audio-converter), [MKA converter](https://www.converterrr.com/mka-converter).

## How to convert MKA to AMR

1. **Add your MKA files.** Drag and drop MKA files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose AMR.** AMR is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your AMR.** Download each AMR file, or everything at once as a ZIP.

## Good to know

- We encode at a high-quality bitrate by default. Pick a specific bitrate or sample rate under Options.
- MKA files are typically used for multi-track and lossless audio, while AMR is best for voice recordings from older phones.
- This conversion runs on FFmpeg in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## MKA vs AMR

|  | MKA | AMR |
| --- | --- | --- |
| Full name | Matroska Audio | Adaptive Multi-Rate |
| Type | Audio | Audio |
| Extensions | .mka | .amr |
| MIME type | audio/x-matroska | audio/amr |
| Best for | multi-track and lossless audio | voice recordings from older phones |
| Properties | open standard | lossy compression, legacy format |

**MKA:** MKA is the audio-only Matroska container, able to hold any codec and multiple tracks.

**AMR:** AMR is a speech codec used by mobile phones for voice recordings and calls.

The other way around: [convert AMR to MKA](https://www.converterrr.com/amr-to-mka).

## Related conversions

- [AMR to MKA](https://www.converterrr.com/amr-to-mka) (in the browser)
- [MKA to MP3](https://www.converterrr.com/mka-to-mp3) (in the browser)
- [MP3 to AMR](https://www.converterrr.com/mp3-to-amr) (cloud)
- [MKA to WAV](https://www.converterrr.com/mka-to-wav) (in the browser)
- [MP4 to AMR](https://www.converterrr.com/mp4-to-amr) (cloud)
- [MKA to M4A](https://www.converterrr.com/mka-to-m4a) (in the browser)
- [WAV to AMR](https://www.converterrr.com/wav-to-amr) (cloud)
- [MKA to FLAC](https://www.converterrr.com/mka-to-flac) (in the browser)
- [MOV to AMR](https://www.converterrr.com/mov-to-amr) (cloud)
- [MKA to AAC](https://www.converterrr.com/mka-to-aac) (in the browser)
- [M4A to AMR](https://www.converterrr.com/m4a-to-amr) (cloud)
- [MKA to OGG](https://www.converterrr.com/mka-to-ogg) (in the browser)

## Convert MKA to other formats

[MKA to MP3](https://www.converterrr.com/mka-to-mp3), [MKA to WAV](https://www.converterrr.com/mka-to-wav), [MKA to M4A](https://www.converterrr.com/mka-to-m4a), [MKA to FLAC](https://www.converterrr.com/mka-to-flac), [MKA to AAC](https://www.converterrr.com/mka-to-aac), [MKA to OGG](https://www.converterrr.com/mka-to-ogg), [MKA to Opus](https://www.converterrr.com/mka-to-opus), [MKA to WMA](https://www.converterrr.com/mka-to-wma), [MKA to AIFF](https://www.converterrr.com/mka-to-aiff), [MKA to M4B](https://www.converterrr.com/mka-to-m4b), [MKA to AC3](https://www.converterrr.com/mka-to-ac3), [MKA to MP2](https://www.converterrr.com/mka-to-mp2), [MKA to WEBA](https://www.converterrr.com/mka-to-weba), [MKA to OGA](https://www.converterrr.com/mka-to-oga), [MKA to WV](https://www.converterrr.com/mka-to-wv), [MKA to AU](https://www.converterrr.com/mka-to-au), [MKA to TTA](https://www.converterrr.com/mka-to-tta)

## Convert other formats to AMR

[MP3 to AMR](https://www.converterrr.com/mp3-to-amr), [MP4 to AMR](https://www.converterrr.com/mp4-to-amr), [WAV to AMR](https://www.converterrr.com/wav-to-amr), [MOV to AMR](https://www.converterrr.com/mov-to-amr), [M4A to AMR](https://www.converterrr.com/m4a-to-amr), [WebM to AMR](https://www.converterrr.com/webm-to-amr), [FLAC to AMR](https://www.converterrr.com/flac-to-amr), [MKV to AMR](https://www.converterrr.com/mkv-to-amr), [AAC to AMR](https://www.converterrr.com/aac-to-amr), [AVI to AMR](https://www.converterrr.com/avi-to-amr), [OGG to AMR](https://www.converterrr.com/ogg-to-amr), [WMV to AMR](https://www.converterrr.com/wmv-to-amr), [Opus to AMR](https://www.converterrr.com/opus-to-amr), [WMA to AMR](https://www.converterrr.com/wma-to-amr), [FLV to AMR](https://www.converterrr.com/flv-to-amr), [M4V to AMR](https://www.converterrr.com/m4v-to-amr), [MPEG to AMR](https://www.converterrr.com/mpeg-to-amr), [3GP to AMR](https://www.converterrr.com/3gp-to-amr), [AIFF to AMR](https://www.converterrr.com/aiff-to-amr), [MPG to AMR](https://www.converterrr.com/mpg-to-amr), [TS to AMR](https://www.converterrr.com/ts-to-amr), [M4B to AMR](https://www.converterrr.com/m4b-to-amr), [MTS to AMR](https://www.converterrr.com/mts-to-amr), [VOB to AMR](https://www.converterrr.com/vob-to-amr)

## MKA to AMR: frequently asked questions

### How do I convert MKA to AMR?

Drop your MKA file onto the converter above, make sure AMR is selected, and click Convert. When it's done, download the AMR file — it usually takes a few seconds.

### Is it safe to convert MKA to AMR here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the MKA to AMR converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting MKA to AMR reduce quality?

AMR is a lossy format, but our defaults are tuned to be visually indistinguishable for most files. You can raise the quality under Options.

### Can I convert multiple MKA files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

### Can I convert AMR back to MKA?

Yes — use our AMR to MKA converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.