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.
visualization html5-audio-element d3js d3 audio-visualizer audio art generative-art data-visualizationInspired 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.
playlist waveform audio audio-visualizer audio-player annotations audiorecorder webaudio music mediarecorder harmony playback daw audacity stem tracks multitrack editor record recording playerGLava 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.
audio-visualizer opengl shadersRealtime Bitcoin transaction visualizer written in HTML/Javascript. See and hear new transactions and blocks as they propagate through the Bitcoin Network.Install Node.js.
bitcoin bitcoin-transaction-visualizer html audio-visualizer websocket-apiPlay audio files from terminal.
audio audio-player audio-visualizerA 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.
wavesurfer microphone videojs audio audio-visualizer webaudio videojs-plugin waveform video playerInteractive 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
webgl web-audio-api animation nodejs audio-visualizer time-series interactive 3d audio webaudio predator-prey torusBlender Python script for audio visualisation
blender addon visualization spectrum-analyzer equalizer audio-visualizerEncode an image to sound
wav audio encoding spectrogram spectrum audio-visualizer audio-effect audio-processingInward 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.
audio-visualizer audio gifs techno soundcloudA Flutter plugin to Visualize the audio being played (only android). Firstly, get a audioSessionID from your native android Mediaplayer.
flutter flutter-plugin flutterwave flutter-package visualizer audio audio-visualizer pubspec flutter-demo flutter-widgetPlay audio files from terminal.
audio audio-player audio-visualizerWhere 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.
audio-visualizer fractals web-audio-apiA simple javascript web radio (visualizer). Listen here.
animations demoscene audio-visualizer audio-player webradioYet another simple audio visualizer for android that takes input from android MediaPlayer. All the visualization logic are in the AudioVisualizer.kt class.
android audio-visualizer visualizer android-visualizerA player/ recorder visualizer with the swipe to seek functionality. This repository contains a sample app that shows how to use iiVisu.
android audio-visualizer custom-view visualizer android-visualizer
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