Convert MIDI to OGG — Free Online Converter
Convert Standard MIDI File (.midi) to Ogg Vorbis (.ogg) online for free. Fast, secure audio conversion with no watermarks or registration....
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How to Convert
Upload your .midi 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 .ogg file when it's ready.
About MIDI to OGG Conversion
MIDI (.midi) and Ogg Vorbis share a philosophical alignment as open, unencumbered formats — MIDI's specification has been freely available since 1983, and Xiph.org's Ogg Vorbis is explicitly patent-free and royalty-free. This makes the MIDI-to-OGG pipeline particularly natural for open-source game development, where both the source music (MIDI) and the shipped audio (OGG) avoid proprietary licensing concerns. The .midi extension is the standard in Linux game development environments where this open-source philosophy is most prevalent.
Ogg Vorbis delivers lossy audio compression that consistently outperforms MP3 in double-blind listening tests at equivalent bitrates. Converting MIDI to OGG renders the symbolic score into an efficient, high-quality audio file that is the de facto standard for game audio across Unity, Godot, Unreal Engine, and every major open-source game framework.
Why Convert MIDI to OGG?
Game developers who prototype music as MIDI during game jams and early development can render to OGG for the shipping build. OGG decodes efficiently at runtime (lower CPU cost than MP3 on most platforms), produces smaller files than WAV or FLAC (critical for mobile game download sizes), and is supported natively by every major game engine without licensing fees or third-party plugins.
Interactive fiction creators, visual novel developers, and indie RPG makers who compose music in LMMS, MuseScore, or Ardour on Linux commonly export .midi files. OGG is the natural audio target for their platforms (Ren'Py, RPG Maker, PICO-8, and web-based engines all support OGG natively), completing an entirely open-source pipeline from composition to game audio.
Common Use Cases
- Rendering MIDI game music prototypes to OGG for Unity, Godot, or Unreal Engine shipping builds
- Converting MIDI compositions to OGG for Ren'Py visual novel soundtracks
- Producing OGG game sound effects from MIDI for RPG Maker and PICO-8 projects
- Creating web game audio from MIDI for HTML5 Canvas and WebGL game engines
- Building open-source game audio libraries from synthesized MIDI instrument samples as OGG files
How It Works
FFmpeg synthesizes the .midi event stream through a SoundFont bank, producing stereo PCM audio at the configured sample rate. The PCM passes to libvorbis, which segments the audio into overlapping MDCT windows, applies psychoacoustic analysis using a forward-adapted masking model, quantizes the spectral coefficients based on managed-bitrate or quality-based targeting, and entropy-codes the result using residue codebooks. The Vorbis stream is encapsulated in Ogg pages — each page contains a 27-byte header with capture pattern, stream serial number, granule position (for seeking), and one or more Vorbis packets.
Quality & Performance
Vorbis at quality 5 (~160 kbps) provides excellent results for synthesized MIDI game audio. The codec's psychoacoustic model handles the structured, predictable waveforms from synthesis very efficiently — removing only genuinely inaudible information. For chiptune-style MIDI rendered through retro SoundFonts, quality 3-4 (~112-128 kbps) is sufficient because the limited harmonic content of 8-bit waveforms needs less data to represent. For orchestral MIDI with rich, multi-layered synthesis, quality 6-7 (~192-224 kbps) preserves the spatial detail and harmonic richness.
Device Compatibility
| Device | MIDI | OGG |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No | Native |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Use Vorbis quality 5 (~160 kbps) as the default for game audio — it balances quality and file size effectively
- 2Add LOOPSTART and LOOPLENGTH Vorbis comments for game engines that support seamless loop points
- 3Match the SoundFont to the game's aesthetic: retro 8-bit SoundFonts for pixel art games, orchestral for cinematic RPGs
- 4Batch convert all MIDI tracks at the same quality setting for consistent audio behavior throughout the game
- 5Provide OGG and AAC versions if targeting web games with Safari/iOS support requirements
MIDI to OGG completes the open-source game audio pipeline. From MIDI composition to Vorbis encoding, every step is patent-free and royalty-free — ideal for indie game development.