A lightweight General MIDI (GM) mapped synthesizer engine and MIDI player built with WebAudio API, generating sounds algorithmically without PCM samples.
webaudio-tinysynth is a lightweight JavaScript synthesizer engine and MIDI player that uses the WebAudio API to generate General MIDI (GM) compatible sounds algorithmically, without relying on pre-recorded samples. It solves the need for a self-contained, dependency-free audio synthesis solution in web applications, enabling MIDI playback and interactive sound generation directly in the browser.
Web developers and creators building music applications, interactive audio experiences, or educational tools that require MIDI playback or real-time sound synthesis in the browser without heavy dependencies.
Developers choose webaudio-tinysynth for its simplicity, small footprint, and flexibility—it works as a standalone library or a CustomElement, supports both headless and GUI use, and generates all sounds algorithmically, eliminating the need for external sample files.
Light-weight GM mapped WebAudio-JavaScript Synthesizer Engine / MIDI Player
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Provides General MIDI mapping across 128 programs and a drum track, enabling straightforward MIDI file playback without external samples, as shown in the timbre object examples.
Supports both CustomElement with a graphical interface and headless JavaScript library modes, allowing integration into web pages or scripts with minimal setup, per the README's usage sections.
Requires only a single dependency-free JavaScript file, making it ideal for web projects where minimizing external resources is critical, as emphasized in the philosophy and files section.
Includes an SMF sequencer with play, stop, loop, and drag-and-drop support, simplifying MIDI playback integration without additional libraries, demonstrated in the functions and demo pages.
Algorithmic synthesis produces chip-tune or FM-based sounds that may lack the authenticity of sample-based libraries, especially in quality mode 0, which uses only one oscillator per note.
The README explicitly states that timbre editing details are 'not yet documented,' hindering developers from fully customizing instrument sounds beyond basic examples.
Only includes reverb as a built-in effect with no support for other common audio effects like delay or chorus, limiting advanced audio manipulation capabilities.