Convert RMVB to M4A
Extract the audio from RMVB videos and save it as M4A — ideal for high-quality music and voice recordings for Apple and Android devices.
- 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 RMVB to M4A
- 1
Tap Choose files and select one or more RMVB files (or drag them in).
- 2
Check that M4A 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 M4A downloads automatically. Converting several files? Grab them all as a ZIP.
RMVB vs M4A
Only the sound is kept — the picture is dropped, so the M4A file is far smaller than the RMVB video.
| RMVB | M4A | |
|---|---|---|
| Full name | RealMedia Variable Bitrate | MPEG-4 Audio (AAC) |
| Type | Video | Audio |
| Compression | Lossy | Lossy |
| Developed by | RealNetworks | Apple / MPEG |
| Introduced | 2003 | 2001 |
| Plays on iPhone | ✕ No | ✓ Yes |
| Plays on Android | ✕ No | ✓ Yes |
| Plays on Windows | ◐ Partly / with an app | ✓ Yes |
| Plays on Mac | ✕ No | ✓ Yes |
About RMVB and M4A
RMVB: RMVB is the RealMedia video format that was extremely popular for sharing movies in the 2000s.
M4A: M4A is an MPEG-4 container holding AAC audio. It sounds better than MP3 at the same size and is the default format for iPhone voice memos, Apple Music downloads and many Android recorders.
Frequently asked questions
How do I convert RMVB to M4A on my phone?
Will converting RMVB to M4A reduce quality?
Can I convert only part of the RMVB?
Is this RMVB to M4A converter free?
Are my files uploaded to a server?
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