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I'm doing a large amount of music library updating and de-duplicating and evaluating, and I would like a piece of software that would allow me to quickly be able to view a waveform of a selected audio file.

I currently use Fission for editing, but it loads slower than I would like, and I have no need for the actual editing aspect of the software. Additionally, Garageband is antagonistically slow and too hard to examine the waveform like I would like.

Is there software, or maybe something like a QuickLook plugin, that would allow me to select an audio file, and quickly get a rendered version of the waveform data within the file?

Loudness levels labels are appreciated, but not required.

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up vote 2 down vote accepted

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.

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

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Audacity is free. I don't find it all that well-designed or useful, but if all you want to do is view waveforms, why not give it a try? – user9290 Aug 24 '11 at 0:59

Checkout Snapper 2 from Audio Ease:

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

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The 'lightest' app I've found to see a waveform is Nulloy

But I wish there were a Quick Look plugin.

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