Are you open to a couple of feature suggestions from someone who uses Audacity for scientific applications?

1. An port of Audacity's "Noise Reduction" filter. I have done this once [0] (with some difficulty and no doubt with errors) and I am so tempted to just translate it to JavaScript and put up a PR, but I'm slammed right now.

2. It would be very useful to be able to view the spectrograph as an alternative to the waveform, rather than having it live in a separate "spectrum analyzer" pane. Especially if zooming along the frequency axis were implemented, this would make it much more useful for, well, spectrum analysis.

Thank you for making this. It's impressive in its own right but doubly so as a web application.

[0] https://github.com/robin-labs/robin/blob/master/noisereduce/...