Audio Capture and Visualization on the Web

Audio Visualization in HTML

• Web Audio API Reccomendation 2021-06-17 from W3C
• Media Capture and Streams from W3C — This document defines a set of JavaScript APIs that allow local media, including audio and video, to be requested from a platform.
• Media Capture from DOM Element from W3C
• WebRTC: Real-Time Communication in Browsers from W3C
  
• Making an Audio Waveform Virtualizer with Vanilla Javascript — code from this article is on codepen.io at Audio waveform visualizer
• Detecting pitch with the Web Audio API and autocorrelation

from StackOverflow:

• real-time processing web audio api
• simple code to calculate frequency of live mic audio using webaudio api
• live WebRTC audio waveform
• can i add effects to realtime audio sream in javacript

Mozilla Developers Network (MDN)

• MediaDevices: getUserMedia() method —
• MDN webaudio examples – GitHub
• MDN Visualizations with Web Audio API
• MDN Audio Output Devices API
• mdn / content – GitHub