Convert Amiga Module (.mod) to Ogg Vorbis (.ogg) online for free. Fast, secure audio conversion with no watermarks or registration.
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MOD files are the original tracker music format, created for the Commodore Amiga's Ultimate Soundtracker in 1987 by Karsten Obarski. The format encodes music as a combination of embedded instrument samples (8-bit PCM, with loop points and finetune values) and pattern-based note sequences across 4 channels (extended by ProTracker, OctaMED, and others). Each pattern row specifies which sample to play on each channel, at what pitch (via Amiga period values), and with what effects (portamento, vibrato, arpeggio, volume slides). This architecture was revolutionary — it meant a complete multi-instrument song could fit on a fraction of a floppy disk, traded freely across BBSes and demo parties.
OGG (Ogg Vorbis) is Xiph.org's open-source lossy audio codec, free from patents and licensing fees. Converting MOD to OGG renders the tracker data into a continuous audio stream and applies Vorbis compression — a codec that offers quality roughly comparable to AAC and superior to MP3 at equivalent bitrates. For the open-source community that shares cultural DNA with the demoscene (both driven by ideals of free creation and distribution), OGG is the natural format for distributing rendered tracker music.
The open-source and Linux communities have a strong affinity with the demoscene — both cultures value technical creativity, free distribution, and community-driven art. OGG Vorbis is the preferred audio format in these ecosystems: it's natively supported in Firefox, Chrome, Linux music players (Rhythmbox, Clementine, Audacious), game engines (Godot, SDL), and the entire Xiph.org stack. Converting MOD to OGG keeps tracker music within the free and open-source philosophy that the demoscene embodied.
Game developers using open-source engines frequently convert MOD files to OGG for their soundtracks. While some engines can play MOD natively, pre-rendering to OGG reduces CPU overhead during gameplay (no real-time synthesis needed), ensures consistent audio across all target platforms, and allows the music to be processed through the engine's standard audio pipeline with effects like reverb, spatial audio, and dynamic mixing without needing a specialized tracker decoder.
FFmpeg's module decoder renders the MOD file's pattern data and samples into stereo PCM audio, applying the full effect command set (ProTracker-compatible processing). The PCM output is then fed to the Vorbis encoder (libvorbis), which applies MDCT (Modified Discrete Cosine Transform) to convert time-domain samples into frequency-domain coefficients, uses a psychoacoustic model to determine masking thresholds per frequency band, quantizes the coefficients based on a target quality level, and entropy-codes the result. Vorbis uses a quality scale from -1 (roughly 45 kbps) to 10 (roughly 500 kbps), with quality 5 (~160 kbps) being the typical default. The Vorbis bitstream is encapsulated in an Ogg container — a page-based transport format with CRC checksums and sequence numbers for stream integrity.
OGG Vorbis at quality 5 (~160 kbps) is transparent for MOD-rendered content. The format excels at preserving tonal content and handles the characteristic spectral profile of tracker music (strong fundamentals, limited bandwidth, repetitive patterns) very efficiently. At quality 3 (~112 kbps), most MOD content still sounds excellent — the codec's psychoacoustic model masks any artifacts below the noise floor of 8-bit source samples. The main advantage of OGG over MP3 for tracker music is better handling of stereo imaging at low bitrates, which matters because Amiga MODs hard-pan channels left and right.
| Device | MOD | OGG |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
MOD to OGG delivers tracker music in the open-source community's preferred audio format. Vorbis encoding provides excellent quality at moderate bitrates, making it ideal for game development, Linux ecosystems, and free software distribution.
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| Native |
Alle nettlesere, alle enheter
| Egenskap | MOD | OGG |
|---|---|---|
| Fullt navn | JVC/Panasonic Camcorder Video | Ogg Vorbis |
| Filendelse | .mod | .ogg |
| Best egnet for | JVC/Panasonic camcorders | Open source |