dlt2000/xc-soundfont-synth

简体中文 | English A SoundFont (SF2) synthesis component for DIY electronic instruments, built on ESP-IDF. For electronic wind instruments, guitars, and other projects that use sensors to control pitch and loudness, this component handles the path from note events to PCM audio. Your application reads sensors and determines the pitch; the component loads SoundFonts, renders audio, and passes it to your I2S, codec, or other output backend through a callback. SF2 parsing and sample synthesis are provided by TinySoundFont. This repository adds ESP-IDF / FreeRTOS integration, command scheduling, expression control, legato transitions, lightweight reverb, and an output adapter interface. The current implementation supports one instance and monophonic note control. maxvoices sets the budget for internal SF2 voices, including sample layers; it is not the number of independent notes you can play simultaneously. noteon() ends the previous performance note, and noteoff() stops all performance channels. Keyboard chords, multiple MIDI channels, and…