Releasing a Free and Open Source Multi Track color coded spectrogram app and vst for Windows and Linux

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Hello everyone,

A few years ago, I felt the need to improve my mixdown workflow, I was just feeling that my attention span was not enough to address all the issues that arise within a tighly compressed mix.
My idea was to develop a multi-track color coded analyzer that could function on a screen separate from my daw and update and move by itself based on the signal sent by VST plugins.
I ended up building it and I have been using and refining it for a long time now.
For example, it uses openGL, a good fft library, it does convolution to make the spectrums looks better, and it has solid CI/CD. I even scrapped away all the pretty UI shadow features and micromanaged memory access to make is as fast as I could.
I decided to release it open source on Github for Windows and Linux.

Is anyone willing to try it ? It works so well for me, but I didn't get anyone to use it yet.
Feel free to open issues on github, or to drop a message with your DAW and OS to let me know that it works or that it cant integrate withing your workflow.

Thank you to anyone willing to use it :)
You can download .exe and linux binaries directly on Github.

https://github.com/QuentinFAIDIDE/KholorsStation

PS: I plan to add a graph of volumes and stereo channels correlations (like Izotope Ozone but over time).
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I'd probably post in Effects. This forum (DSP dev) is traditionally inhabited by developers discussing algorithms and such, so you'll usually get more response from the other forums when you're looking for testers and such.

Looks interesting though. If you want suggestions, I'd imagine a plain spectrum view (ie. showing each track as curve on top of each other) would perhaps be nice... and even better if in the multi-spectrogram view one could click some point in time (ie. where it looks like there might be a problem) and it'd give you a normal FFT-spectrum of all the tracks at that point overlayd over each other. I'm a dev, so I know this sort of thing is not a "minor" thing to add... but figured I'd share the cool idea anyway.
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Thank you for supporting Linux and providing binaries!! :)
Vendor‑Dependent Copy Protection: Customers lose. Pirates win.:mad:
(Also: I'm Accused of lying about Linux—it boots, runs my pro audio workflow, stays stable, updates--though yearly dismissed as “niche”. Yet I'm the deluded one.) :roll:
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mystran wrote: Thu Aug 28, 2025 6:52 am I'd probably post in Effects. This forum (DSP dev) is traditionally inhabited by developers discussing algorithms and such, so you'll usually get more response from the other forums when you're looking for testers and such.

Looks interesting though. If you want suggestions, I'd imagine a plain spectrum view (ie. showing each track as curve on top of each other) would perhaps be nice... and even better if in the multi-spectrogram view one could click some point in time (ie. where it looks like there might be a problem) and it'd give you a normal FFT-spectrum of all the tracks at that point overlayd over each other. I'm a dev, so I know this sort of thing is not a "minor" thing to add... but figured I'd share the cool idea anyway.
As for the suggestion to have a plain spectrum view is interesting, I could add a button to switch to a new view like that.
For the spectrogram, it is already fully navigable. Holding mouse button allow to zoom and move forward or backward, like a traditional DAW.

Thx for the tips and ideas, I will see if I can either close this post and post on the other channel, or make a new post there without breaking the rules :-)
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