mudcube/MIDI.jsArchived
MIDI.js
MIDI.js is a JavaScript library for playing MIDI files and triggering musical notes within web browsers. It functions as a web MIDI library and soundfont audio synthesizer, providing the core engines necessary to render instrument sounds for multiple simultaneous tracks.
The project includes a specialized MIDI-to-visual sync engine that interpolates musical events into continuous animation loops to synchronize visuals with audio playback. It also provides a soundfont code generator to convert audio instrument files into base64 code for direct browser consumption.
The library covers MIDI file parsing and playback control, including note triggering and real-time event monitoring. It manages audio synthesis through instrument loading and rendering, utilizing a system for browser-based audio processing to apply effects and filters to synthesized signals.
Features
- Soundfont Synthesizers - Renders realistic instrument sounds using soundfont data for multiple simultaneous tracks in a web browser.
- Playback Controls - Includes controls to start, pause, and stop the playback of musical data from binary or base64 sources.
- Audio Processing - Provides a comprehensive system for real-time sound manipulation, synthesis, and filtering within a web browser.
- Procedural Audio Synthesizers - Functions as a procedural audio synthesizer that generates realistic instrument sounds using soundfont data at runtime.
- Sound Synthesis - Implements a browser-based engine that synthesizes realistic instrument sounds from soundfont data.
- Soundfont Rendering - Renders instrument sounds for multiple simultaneous tracks with precise timing using soundfont data.
- Web MIDI Libraries - Provides a comprehensive JavaScript library for playing MIDI files and triggering musical notes within web browsers.
- MIDI File Parsers - Provides utilities to decode raw MIDI file data into structured formats for playback and timing control.
- Note Outputs - Allows triggering of individual notes or chords on specific channels with adjustable velocity and delay.
- Music Playback Schedulers - Implements a high-precision scheduling engine that maps musical event data to browser timers for audio playback.
- Web Audio Integration - Integrates with the browser's native audio graph to route signals through synthesizers and effect processors.
- Web MIDI Frameworks - Provides the necessary tools to build interactive musical applications that play notes and handle MIDI files in browsers.
- MIDI-Driven Visualizations - Synchronizes visual animations and effects with real-time MIDI event data for artistic displays.
- Soundfont Binary Encoders - Converts audio instrument files into base64 code for direct consumption by web browsers.
- Multi-Channel Audio Routing - Manages simultaneous instrument playback by routing separate soundfont instances to individual audio channels and mixers.
- Sample Loading - Includes a mechanism to download and initialize specific instrument sounds required for high-fidelity audio playback.
- Effect Chains - Implements a sequential processing pipeline to apply filters, delays, and compressors to sound output.
- Base64 Soundfont Encoders - Converts binary instrument samples into base64 encoded strings for direct consumption within web environments.
- MIDI-to-Visual Sync Engines - Interpolates musical events into continuous animation loops to synchronize visuals with audio playback.
- MIDI-Visual Synchronizers - Interpolates between musical events using a continuous animation loop for smooth visual synchronization.
- MIDI-Audio Visual Synchronizers - Interpolates musical events into animation loops to smoothly synchronize visuals with audio playback.
- Audio Libraries - Framework for building web-based MIDI applications.
- Audio Processing Libraries - Simplifies the creation of MIDI-based web applications.
Star history
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