VI-Pads interacts with touch, mouse, keyboard, and MIDI events to play back preloaded drum samples, utilizing the Web Audio API and the Web MIDI API as the core building blocks for audio control and MIDI functionality. This virtual drumpad features 16 illuminated pads, a touchscreen for switching between connected MIDI controller inputs, a color picker button to change the light color, and a power button to turn the device on and off. You can watch a video demonstration of this virtual drumpad at the following link or try it yourself on the GitHub Pages site of this project.
The code in this repository is organized into three main files, namely index.html, style.css, and script.js, along with a set of JavaScript Modules, which break down the functionality of the project into more manageable and maintainable components. The Files directory contains a couple of images and a collection of drum Samples, which were gathered from various royalty-free web sources for this project.
This project was developed using HTML5, CSS3, and JavaScript ES6, and was thoroughly tested on Microsoft Edge, Google Chrome, Mozilla Firefox, and Safari web browsers available on Windows 10, Android 12, and iOS 17 devices. The Web Audio API is supported by all of these browsers, however iOS devices need Silent Mode to be switched off to allow audio playback. The Web MIDI API is fully supported by Microsoft Edge and Google Chrome, partially supported by Mozilla Firefox, and not supported at all by Safari. Specifically, Mozilla Firefox offers only desktop support, however it does not detect when a MIDI controller is connected or disconnected, thus requiring the device to be already connected to the computer before loading the web page in order for it to be recognized. Furthermore, note that iOS devices do not support the Web MIDI API on any browser. Lastly, if your device supports multi-touch gestures (e.g. a three-finger swipe to take a screenshot), you may need to disable them to ensure that touch events are registered properly.
VI-Pads © 2024 by Alexandros Iliadis is licensed under the GNU General Public License v3.0.
Permissions of this strong copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights.
See the LICENSE.md file for more details.