Convert Ogg Video (.ogv) 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 .ogv 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.
OGV files contain Vorbis audio in Xiph.org's Ogg container. M4A is Apple's audio-only MPEG-4 container, typically holding AAC (lossy) or ALAC (lossless) audio. M4A is the native audio format for Apple Music, iTunes, iPhone Voice Memos, and the entire Apple ecosystem. Converting OGV to M4A extracts and transcodes the Vorbis audio into Apple's preferred audio container.
M4A files integrate seamlessly with Apple Music, iTunes, iPhone, iPad, Mac, and Apple Watch. While Vorbis is an excellent codec, it lacks native support in Apple's media frameworks — the Music app and most iOS audio apps cannot play Vorbis. M4A with AAC provides the equivalent quality in Apple's native format.
M4A also supports rich metadata (album art, lyrics, gapless playback, chapters in M4B variant) that are standard in the Apple ecosystem.
FFmpeg extracts the Vorbis audio from the OGV container, decodes to PCM, and re-encodes to AAC-LC using the native or libfdk_aac encoder, wrapping in the M4A (MPEG-4 audio) container. Alternatively, ALAC encoding is available for lossless output. The M4A supports full MP4-based metadata including title, artist, album, artwork, and chapter markers.
AAC at 192 kbps in M4A is perceptually equivalent to Vorbis at 160 kbps. The lossy-to-lossy transcoding introduces a small generation loss, minimized by using an AAC bitrate 20-30% higher than the Vorbis source. For archival, ALAC output preserves the decoded Vorbis audio losslessly.
| Device | OGV | 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
OGV to M4A provides the cleanest path from open-source audio to Apple's native ecosystem, with full metadata and device integration.
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| Funktion | OGV | M4A |
|---|---|---|
| Fulde navn | Ogg Video | MPEG-4 Audio |
| Filendelse | .ogv | .m4a |
| Bedst til | Open source | Better than MP3 |