Lightweight Audio Waveform Viewer

Solution 1:

It's not a Quick Look plugin, but Sound Studio it is fairly lightweight, and displays the waveform:

However, I'm afraid I don't think you'll find the waveform itself to be particularly useful for determining duplicate songs.

Solution 2:

Try Audacity. It doesn't seem to heavyweight for just waveform viewing.

Solution 3:

I have tried two options:

https://github.com/seagirl/QLWaveForm/releases/tag/v1.0 << that worked

https://github.com/ideoforms/qlspectrogram << Doesn't work on catalina

Solution 4:

Checkout Snapper 2 from Audio Ease:

http://www.audioease.com/Pages/Snapper/SnapperMain.html#

I was looking for the same thing but this is the only all-in-one, finder level waveform viewer I could find.