Convert MID to OGG — Free Online Converter
Convert Standard MIDI (.mid) 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 .mid 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 MID to OGG Conversion
MID (Standard MIDI File) is a music notation standard from 1983 that encodes performance instructions — note events, velocities, timing, instrument programs, control changes — without any audio content. MIDI files are compact (10-100 KB) because they describe musical events rather than waveforms. Sound is produced only when a synthesizer interprets these instructions using instrument samples.
OGG (Ogg Vorbis) is Xiph.org's open-source lossy audio codec, free from patents and licensing fees. Converting MID to OGG renders the MIDI performance through a software synthesizer and encodes the resulting audio using the Vorbis codec in an Ogg container. This produces a patent-free, broadly compatible audio file ideal for web applications, games, and open-source projects.
Why Convert MID to OGG?
MIDI requires a synthesizer and produces inconsistent results across devices. OGG Vorbis captures a specific rendering as a compact, high-quality audio file. At equivalent bitrates, Vorbis typically outperforms MP3 in listening tests, making it an excellent choice for rendered MIDI audio.
OGG is the preferred audio format in the open-source ecosystem — Linux distributions, Firefox, Chromium, Android, and game engines (Unity, Godot, Unreal) all support it natively. For MIDI-rendered game music, web audio, and open-source applications, OGG is the natural choice without patent concerns.
Common Use Cases
- Converting MIDI game soundtracks to OGG for game engines (Unity, Godot, Unreal Engine)
- Rendering MIDI compositions as OGG for open-source project soundtracks
- Producing web-compatible audio from MIDI for HTML5 games and interactive applications
- Creating patent-free audio renders of MIDI music for community and educational projects
- Preparing MIDI background music as OGG for Linux desktop application sound themes
How It Works
FFmpeg decodes the MIDI file using its built-in SMF parser and software synthesizer, rendering all 16 MIDI channels through SoundFont instrument patches to stereo PCM. The PCM stream is encoded using libvorbis with psychoacoustic modeling that removes inaudible frequencies and applies masking analysis. The Vorbis-encoded audio is wrapped in an Ogg container with proper page structure, serial numbers, and granule positions for seeking.
Quality & Performance
Vorbis at quality 6 (~192 kbps) produces excellent audio quality for synthesized MIDI content. Vorbis generally handles synthesized audio well because the clean, predictable waveforms from synthesis are easier for psychoacoustic coding to optimize than complex recorded music. The SoundFont determines the musical quality; Vorbis encoding preserves it efficiently. At quality 4-5 (~128-160 kbps), the synthesis artifacts from a mediocre SoundFont are more perceptible than any Vorbis encoding artifacts.
Device Compatibility
| Device | MID | 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 5-6 (~160-192 kbps) for a good balance of quality and file size on synthesized MIDI
- 2Provide OGG as primary and AAC as fallback for web applications using the HTML5 audio element's source tag
- 3For game development, batch convert all MIDI soundtracks to OGG at the same quality setting for consistent audio behavior
- 4Use a SoundFont matched to the game's aesthetic — retro games benefit from simpler SoundFonts, while modern games need realistic banks
- 5Tag the OGG file with Vorbis comments (title, artist, album) for metadata in media players and game asset managers
MID to OGG renders MIDI into a patent-free, open-source-friendly audio format ideal for games, web applications, and Linux-ecosystem distribution.