![]() I don't know much about signal processing, perhaps it's not even feasible.īut what I envision is Javascript reading the sound stream from the file, and periodically sampling the amplitude. I'm wondering if it's possible to emulate a subset of this functionality in the browser, with Javascript. Most transcription tools have a built-in waveform that can be used to jump around the audio file, which is very helpful because the transcriber can learn to visually find and repeat or loop phrases. There are a number of advanced existing desktop apps for doing this sort of thing (such as Transcriber - here's a screenshot). Basically I'm hooking up key events to play, pause, and loop a file read in with the audio tag. ![]() ![]() I've been working on a tool to transcribe recordings of speech with Javascript.
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