A Sound Editor in HTML Using JavaScript

This Could Be Better

The JavaScript code below implements a sound editor in JavaScript. To see it in action, copy it into an .html file and open that file in a web browser that runs JavaScript. Or, for an online version, visit http://thiscouldbebetter.neocities.org/soundeditor.html.

The application is a little like Audacity, though it has nowhere near as many features, and a lot more bugs. I originally started programming it as a basis for my own text-to-speech research. You can load a .WAV file and play it back. You can select parts of the sound, give those selections labels, and then play back your labeled selections in some new order. You can zoom in and zoom out. A few rudimentary filters are provided that allow you to silence or amplify selections, or generate a sine wave of a given frequency. You can even export your labeled selections as an subtitle file in .SRT format.

One notableā€¦

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