Convert RealMedia Variable Bitrate (.rmvb) to MPEG-4 Audio (.m4a) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .rmvb file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .m4a file when it's ready.
M4A is the standard audio format for Apple's ecosystem — AAC audio in an MPEG-4 container supporting rich metadata, album art, chapters, and gapless playback. RMVB files store audio in RealAudio codecs (Cook, AAC, or HE-AAC variants) alongside video. Converting RMVB to M4A extracts the audio and packages it for seamless integration with iTunes, Apple Music, and all Apple devices.
RealAudio streams inside RMVB containers can't be played directly on Apple devices or imported into Apple's music ecosystem. M4A is the native audio format for Apple Music, iTunes, iPhone, iPad, and Apple Watch. The conversion discards unnecessary video data and produces an Apple-optimized audio file.
FFmpeg decodes the RealAudio stream and re-encodes to AAC-LC in the M4A container. Output defaults to 192 kbps VBR stereo with Apple-compatible metadata atoms. The M4A container supports iTunes-specific tags including album art, genre, track number, and Apple Music Smart Playlist fields.
At 192 kbps AAC, the M4A output preserves the full quality of the RMVB audio track (which was typically 64-128 kbps RealAudio). The output is transparent — no audible quality difference from the decoded RMVB audio source.
| Device | RMVB | M4A |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
RMVB to M4A conversion is the direct path from RealMedia archives to Apple's audio ecosystem. The extracted audio integrates perfectly with iTunes and Apple Music for organized, accessible listening.
Безопасная передача
Загрузки зашифрованы по HTTPS
Конфиденциальность прежде всего
Файлы автоматически удаляются после обработки
Без регистрации
Начните конвертировать мгновенно
Работает везде
| No |
8MB free, 50MB Nitro
Любой браузер, любое устройство
| Характеристика | RMVB | M4A |
|---|---|---|
| Полное название | RealMedia Variable Bitrate | MPEG-4 Audio |
| Расширение | .rmvb | .m4a |
| Лучше всего подходит для | Variable bitrate | Better than MP3 |