Online Audio Editor in Freesound
summary
An audio editor is embedded into Freesound, implemented in HTML/CSS/JavaScript using Wavesurfer.js (Web Audio API) and published on GitHub with a standalone demo link. Core actions include select, zoom, delete and export; an EQ panel offers low-pass, band-pass and high-pass filters and effects for gain, fade in/out and playback-rate changes. A first usability questionnaire prompted a simpler interface; a second task-based evaluation verifies that individual actions and filters behave as expected across modern browsers.
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