background preloader

Web Audio

Facebook Twitter

MicroBrute Patch Configurator. Web audio: Filter Playground. JavaScript music theory. Taming the ScriptProcessorNode - Codaholic. The Web Audio API provides graph based API for audio generation and processing primitives with a focus on high performance and low latency.

Taming the ScriptProcessorNode - Codaholic

For custom processing that is not covered by the builtin native audio nodes, it provides a ScriptProcessorNode whose processing is determined by a Javascript function. Though the ScriptProcessorNode is presented like any other node type by the API, its behaviour differs from the other native nodes in some fundamental ways. This post examines some of these differences using a simple chime model as the use case, and derives some suggestions for the Web Audio API specification. Contents A simple chime model Let’s consider a simple kind of sound - a “chime”, a decaying sinusoid oscillating at a given frequency. The above code produces a single chime that lasts for about 10 seconds, with a decay time constant of 2 seconds.

Second, we see a time limited triggering of the OscillatorNode. Abstracting the chime model. WebAudio.js. KievII. Audiolet - JavaScript library for audio synthesis and composition. Agektmr (Eiji Kitamura) Timeside - open and fast web audio components. TimeSide is a set of python components enabling easy audio processing, transcoding, imaging and streaming.

timeside - open and fast web audio components

Its simple architecture and high-level API have been design to process serial pipelines. It includes a powerfull HTM5 interactive player which can be embedded in any web application to provide fancy waveforms, various analyzer results, synced time metadata display during playback (time-marking) and remote indexing. The engine (server side) is fully written in Python, the player (client side) in HTML, CSS and JavaScript. Goals We just need a python library to: Here is a schematic diagram of the TimeSide engine architecture: News move UI static files from ui/ to static/timeside/ (for better django compatibility) upgrade js scripts from telemeta 1.4.4 upgrade SoundManager2 to v297a-20120916 mostly a transitional developer and mantainer version, no new cool features but add "ts-waveforms" script for waveform batching fix some tests removed but download audio samples fix setup update README. AudioJS - An HTML5 Audio Player. AudioJS Fork of VideoJS for audio, with all themes from VideoJS Authors Based on VideoJS from Zencoder and modified by dz0ny and jedfoster Default Skin.

AudioJS - An HTML5 Audio Player

Stoyan's web dev blog: phpied.com. Web Audio API. Exploring the HTML5 Web Audio: visualizing sound. If you've read some of my other articles on this blog you probably know I'm a fan of HTML5.

Exploring the HTML5 Web Audio: visualizing sound

With HTML5 we get all this interesting functionality, directly in the browser, in a way that, eventually, is standard across browsers. One of the new HTML5 APIs that is slowly moving through the standardization process is the Web Audio API. With this API, currently only supported in Chrome and as of October 2013 also in Firefox, we get access to all kinds of interesting audio components you can use to create, modify and visualize sounds (such as the following spectrogram). Update 30-11-2013: Firefox also has support for this API but a couple of API elements have changed. I've updated this article to reflect those changes and the examples now work on Firefox and Chrome. So why do I start with visualizations? There are many interesting examples that use this API. Dinahmoe – Adaptive Music And Interactive Sound Design.

Case-study: JAM with Chrome - How we made the audio rock. Introduction JAM with Chrome is a web based musical project created by Google.

Case-study: JAM with Chrome - How we made the audio rock

JAM with Chrome lets people from all over the world form a band and jam in real time inside the browser. We at DinahMoe had the great pleasure to be a part of this project. Our role was to produce music for the application, and design and develop the music component. The development consisted of three main areas: a "music workstation" including midi playback, software samplers, audio effects, routing and mixing; a music logic engine to control the music interactively in real-time; and a synchronization component that makes sure that all players in a session hear the music at exactly the same time, a prerequisite for being able to play together.

To achieve the highest possible level of authenticity, accuracy and audio quality we opted to use the Web Audio API. JavaScript synth in 4K. KievII Library. JensNockert/fft.js. Additive-harmonics. Move the sliders to change the sound.

Additive-harmonics

More detailed information is below. Jsfx - sound generation. HTML5 audio experiment - JavaScript sound synthesis and audio encoding. What?

HTML5 audio experiment - JavaScript sound synthesis and audio encoding

Simply use the generated data URI as source. Works in: Chrome 9+Firefox 3.6+Opera 11+ Other browsers not tested. Download riffwave.js (version 0.03) Some tests Sample usage var data = []; for (var i=0; i<10000; i++) data[i] = Math.round(255 * Math.random()); var wave = new RIFFWAVE(data); var audio = new Audio(wave.dataURI); audio.play(); Another one. Sound check. All this is done in HTML5 by the way. The.mohayonao.com. Audiolib.js. Jsantell/dancer.js.

SoundManager 2: JavaScript Sound For The Web. Timbre.js - JavaScript Library for Objective Sound Programming. XAudioJS TEST. Badamson/patchosaur. Stuart Memo. Abbey Load — an asset loader for web audio projects. Need a simple way of loading audio files into a project that uses the Web Audio API?

Abbey Load — an asset loader for web audio projects

Abbey Load is just the thing. Specify the names and paths of your audio files along with a function to call when you're done and ready to have the time of your life. Download The best way to start using Abbey Load is to grab it from GitHub How to use Abbey Load relies on a couple of things, namely: Your project must use the Web Audio API You agree that Abbey Road and The White Album are the best Beatles records. More documentation to come, but this will get you going in the meantime: Need help or have an idea to make AL better? Qwerty Hancock — vector JavaScript keyboard for web audio projects. Need an interactive HTML plugin-free keyboard for your web audio project?

Qwerty Hancock — vector JavaScript keyboard for web audio projects

Qwerty Hancock is just the thing. Specify the number of octaves, give it a height and a width then you're ready to use your mouse or keyboard to have the time of your life. Ofmlabs/aurora.js.