That’s it for the implementation - time to style! Let’s begin with adding some options into WaveSurfer.create to get the waveform looking better. This is a safety net in case the button’s onClick gets called with () before isPlaying() is defined. Built a PHP development server with Ubuntu Linux server. EDIT: I have also found that the default sound device on Ubuntu is faulty. Note that we added an initial value of isPlaying: () => false to waveSurferRef. Front-end, SVG, WaveSurfer, Haml, Sass, CoffeeScript, JavaScript. The last sign of life from the official Snack and Wavesurfer maintainers is. Typical applications are speech/sound analysis and sound annotation/transcription. It can be used as a stand- alone tool for a wide range of tasks in speech research and education. I have yet to discover an easier/more performant implementation that can rely on Wavesurfer as the single source of truth and lift any necessary state up. Wavesurfer is a tool for sound visualization and manipulation. We’ll add an mp3 file to the project as the audio source to pass into our waveform component.
#Wavesurfer ubuntu update
This approach lets us rely on React’s diffing and rerendering to update the DOM outside of the Wavesurfer instance, in the case of the play/pause button. Wavesurfer.js for the waveform React Hooks for the implementation This article assumes that you’re familiar with React, but feel free to check out the respective docs linked above for a refresher. There is a downside with this implementation: we must duplicate Wavesurfer’s own isPlaying() state into React with toggleIsPlaying(()), creating potentially two sources of truth with React’s state and Wavesurfer’s state.
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