Rowdy Rabouw
Dec 16, 2024
Beats in the Browser: Coding Music with JavaScript
#1about 7 minutes
The history and cultural impact of Roland drum machines
Roland's TR-808 and TR-909 drum machines were commercial failures that later became iconic in hip-hop and dance music.
#2about 3 minutes
Generating basic sounds in the browser with Web Audio API
The Web Audio API allows for sound generation in the browser using an AudioContext and an oscillator node to create simple waveforms.
#3about 3 minutes
Simplifying audio playback in the browser with Tone.js
Instead of complex synthesis, use WAV files and the Tone.js library to easily load and play audio samples with minimal code.
#4about 6 minutes
Connecting physical MIDI controllers using the Web MIDI API
The Web MIDI API enables browsers to receive messages from physical hardware like keyboards and drum pads to trigger in-browser events.
#5about 7 minutes
How to build a step sequencer in JavaScript
A step sequencer can be built using HTML checkboxes for the interface and the Tone.js scheduling feature to loop through and play selected notes.
#6about 4 minutes
Controlling music tempo with the Web Bluetooth API
The Web Bluetooth API can connect to low-energy devices like a heart rate monitor to dynamically control application parameters like music tempo.
#7about 3 minutes
A live karaoke demo and concluding thoughts
A fun demonstration combines the browser-based drum machine with karaoke, followed by a look back at early DJing experiences.
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