Convert AMR to AC3
AMR is great for call recordings and voice memos from older phones, but AC3 is the better choice for home theatre and surround sound. Convert AMR to AC3 in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert AMR to AC3
- 1
Tap Choose files and select one or more AMR files (or drag them in).
- 2
Check that AC3 is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your AC3 downloads automatically. Converting several files? Grab them all as a ZIP.
AMR vs AC3
Both formats are lossy, so the audio is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| AMR | AC3 | |
|---|---|---|
| Full name | Adaptive Multi-Rate | Dolby Digital (AC-3) |
| Type | Audio | Audio |
| Compression | Lossy | Lossy |
| Developed by | 3GPP / Ericsson | Dolby Laboratories |
| Introduced | 1999 | 1991 |
| Plays on iPhone | ✕ No | ◐ Partly / with an app |
| Plays on Android | ✓ Yes | ◐ Partly / with an app |
| Plays on Windows | ◐ Partly / with an app | ✓ Yes |
| Plays on Mac | ✕ No | ✓ Yes |
About AMR and AC3
AMR: AMR is a speech codec made for mobile phones. Older Android and Nokia phones, call recorders and voice-memo apps save recordings as .amr files, which many computers cannot open.
AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.
Frequently asked questions
How do I convert AMR to AC3 on my phone?
Will converting AMR to AC3 reduce quality?
Is this AMR to AC3 converter free?
Are my files uploaded to a server?
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