Displaying 1 to 17 from 17 results

party-mode - An experimental music visualizer using d3.js and the web audio api.

  •    Javascript

Using the web audio api, I can get an array of numbers which corresponds to the waveform of the sound an html5 audio element is producing. There's a good tutorial on how to do this. Then, using requestAnimationFrame (with a little frame limiting for performance reasons) I'm updating that array as the music changes. I then normalize the data a bit (or transform it slightly depending on the visualization) and redraw the screen based on the updated array. I'm using d3.js to draw and redraw SVG based on this normalized data. Each visualization uses the data a bit differently -- it was mostly trial and error to get some stuff I liked looking at. Since I'm using D3 -- which is just drawing SVG -- I was able to style everything in CSS (no images are used at all, including icons). There are a handful of differently colored themes for each visualization, and I do some rudimentary CSS namespacing by updating a class applied to the html element. eg. <html class='theme_1'>. This lets me override or substitute CSS rules pretty trivially. I can add some additional variation to each theme by messing with pseudo selectors. For example, I can use :nth-of-type to hide every nth SVG rectangle or making every odd child have a different stroke-dasharray, etc.

waveform-playlist - Multitrack Web Audio editor and player with canvas waveform preview

  •    Javascript

Inspired by Audacity, this project is a multiple track playlist editor written in ES2015 using the Web Audio API. Load tracks and set cues (track cue in, cue out), fades (track fade in, fade out) and track start/end times within the playlist. I've written up some demos on github for the different audio fade types in the project.

glava - GLava - OpenGL audio spectrum visualizer

  •    C

GLava is an OpenGL audio spectrum visualizer. Its primary use case is for desktop windows or backgrounds. Displayed to the left is the radial shader module, and here is a demonstration video. Development is active, and reporting issues is encouranged. You can pass BUILD=debug to the makefile for debug builds of both glad and glava, and you can manually specify install targets with INSTALL=..., possible arguments are unix for FHS compliant Linux and BSD distros, osx for Mac OSX, and standalone which allows you to run GLava in the build directory.

bitlisten - Realtime Bitcoin transaction visualizer:

  •    Javascript

Realtime Bitcoin transaction visualizer written in HTML/Javascript. See and hear new transactions and blocks as they propagate through the Bitcoin Network.Install Node.js.

videojs-wavesurfer - video.js plugin that adds a navigable waveform for audio and video files

  •    Javascript

A video.js plugin that adds a navigable waveform for audio and video files, using the wavesurfer.js library. Includes support for fullscreen mode and real-time visualization of microphone input. You can use npm (npm install videojs-wavesurfer) to install the plugin, or download it here. If you want to try the examples, check these instructions below.

webgl-3d-animation - An interactive 3D animation using WebGL to depict a 2D predator prey ecology on a grid real-time mapped onto the surface of a 3D torus

  •    Javascript

Interactive 3D animation using WebGL showing a 2D predator prey ecology on a grid which is real-time mapped onto the surface of a 3D torus. node.js server side gives access to WAV format files which are rendered using Web Audio API

inward - 🌈 A real-time gif visualisation of online radio techno mixes

  •    Javascript

Inward is a weekend hack project inspired by 'Trif', built in a day or so. It uses the web audio API to analyse an incoming audio stream (coming from SoundCloud), to toggle the visibility of some trippy gifs. There's also a hidden feature..somewhere.. Inward is a SoundCloud visualisation project. The app takes in a stream (from SoundCloud), analyses it in real-time, and uses frequency data to flash between different preselected gifs.

FlutterVisualizers - A Flutter Plugin to visualize audio in android

  •    Dart

A Flutter plugin to Visualize the audio being played (only android). Firstly, get a audioSessionID from your native android Mediaplayer.

MusicalFractals - :sparkles: Generates 3D, animated fractals by analyzing the waveform of audio files

  •    Javascript

Where a, b, c are parameters seeded by analyzing the waveform of the browser's audio. This equation is known as the 'Hopalong Attractor'. The graphical portion of this project was created by Iacopo Sassarini. In his implementation, he used random seeds to generate and render random Hapolong Orbital fractals. I modified his code to use the waveform of browser audio as a seed to generate fractals.

audiovisualizer - Another simple audio visualizer for android.

  •    Kotlin

Yet another simple audio visualizer for android that takes input from android MediaPlayer. All the visualization logic are in the AudioVisualizer.kt class.

iiVisu - A player/ recorder visualizer with the swipe to seek functionality.

  •    Kotlin

A player/ recorder visualizer with the swipe to seek functionality. This repository contains a sample app that shows how to use iiVisu.

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