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Thi Ngoc Nguyen
Thi Ngoc Nguyen

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How I Finally Learned What Was Inside My Music (Without Re-Recording Everything)


When you create music long enough, you eventually hit a frustrating wall.
You finish a track. It sounds fine. But something feels off.
For me, that moment usually comes after publishing. A video underperforms. A remix idea shows up too late. Or I want to reuse a vocal line, but the original project file is gone.
This is the story of how I started breaking my own tracks apart—and what I learned along the way.

The Problem No One Warns You About

I make music mostly for content. Short videos, background tracks, loops for social posts. Speed matters more than perfection.
But speed has a downside.
Older tracks pile up. Some were exported as a single WAV. No stems. No backups. Just “final_v3_really_final.wav”.
At some point, I wanted to:

  • Remove vocals for an instrumental cut
  • Reuse drums in a different tempo
  • Fix a bass line that felt too loud on mobile Re-recording was not realistic. I needed another option.

A Quick Reality Check: What Stem Separation Really Is

Before touching any tool, I spent time understanding the basics.
Modern stem separation is mostly based on source separation models, often trained using deep learning. These models analyze frequency patterns over time and attempt to isolate components like vocals, drums, bass, and accompaniment.
If you want a technical overview, this guide from Spotify Research explains the concept clearly and without hype.
Another solid reference is the MIR (Music Information Retrieval) community, which documents both progress and limitations.
The key takeaway:
It’s powerful—but not magic.

My First Tests (And a Few Failures)

I tested stem splitting on three real tracks:

  1. A clean pop track with clear vocals
  2. A lo-fi beat with vinyl noise
  3. A dense EDM drop with heavy sidechain

Results were mixed.
The pop track worked surprisingly well. Vocals were clean enough to reuse.
The lo-fi track struggled. Noise confused the model.
The EDM drop? Drums and bass bled into each other badly.
That was my first lesson: the cleaner the mix, the better the result.
According to a 2023 overview in IEEE Signal Processing Magazine, separation accuracy drops significantly when sources share overlapping frequency ranges.

That matched my experience almost perfectly.

Where It Actually Became Useful

The real value wasn’t perfection. It was speed.
One afternoon, I needed instrumental versions of five older tracks for short-form videos. Rebuilding them manually would take hours.
Using an AI Stem Splitter
let me generate usable instrumentals in under 15 minutes total.
Were they studio-grade? No.
Were they good enough for mobile video? Absolutely.
I’d estimate my output speed improved by around 30–40% that week, simply because I stopped rebuilding things from scratch.

Small Workflow Adjustments That Helped a Lot

After some trial and error, I changed how I work:
I now export cleaner mixes when possible
I avoid heavy stereo widening before splitting
I always preview stems on phone speakers, not studio monitors
One unexpected win:
Separated drum stems helped me identify over-compression issues I had missed in the original mix.
This aligns with findings from the AES (Audio Engineering Society), which notes that stem isolation can improve mix diagnostics even when separation isn’t perfect.

A Quiet Tool That Slipped Into My Routine

During this phase, I tried a few web-based tools. One of them was MusicArt.
I didn’t treat it as a “solution,” more like a utility. Something I open when I need to move fast and don’t want to reopen old DAW sessions.
It didn’t replace my workflow.
It reduced friction.
That distinction matters.

What I Would Tell Other Creators

If you’re expecting studio-perfect stems, you’ll be disappointed.
If you’re looking for flexibility, you’ll probably be impressed.
Stem separation works best when:

  • The mix is clean
  • The goal is reuse, not perfection
  • Time matters more than purity

Used that way, it becomes less of a gimmick and more of a creative safety net.

Final Thoughts

I used to think finishing a track meant closing the door on it.
Now I treat exports as something I can reopen in different ways.
Not perfectly. Not endlessly. But enough to keep ideas moving.
And for a content-driven creator, that difference adds up fast.

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