Whether you want to create a karaoke track, isolate a vocal for sampling, pull the drum pattern from a finished mix, or remix a track from its individual components, the SuperCool stem separation feature gives you surgical control over any audio file.
Here is how to use it and what to do with the results.
1. Why Separate Stems in SuperCool?
A finished audio file is a blend of multiple individual elements mixed together. Stem separation is the process of unblending them, pulling each element out as its own clean, isolated file right inside SuperCool.
The most common reasons to separate stems include:
Creating a karaoke or backing track: Remove the lead vocal from a song so singers can perform over the instrumental.
Sampling a specific element: Pull out just the drum groove, a bass line, or a melody phrase to use in a new production.
Cleaning up a voiceover: Isolate the speech from a recording that has heavy background music mixed into it.
Remixing: Rebuild a track from its individual components, adjusting levels, adding new elements, or replacing specific instruments.
Music education: Isolate individual instruments for students learning to play by ear.
2. How to Access the SuperCool Stem Separation Feature
Stem separation in SuperCool works through the audio player settings, not through the main chat prompt. Here is the exact process:
Generate or upload your audio file. Once the audio appears in your SuperCool session, click on it to open it in the player.
Click the gear icon in the player. This opens the Settings panel.
Select the Edits icon from the settings menu. A new panel will appear.
Choose your stems. You will see a text box where you can type the specific stems you want to extract, or you can select the option to have all stems extracted automatically.
Confirm and generate. SuperCool will process the file and return each requested stem as a separate, downloadable audio file!
3. How to Request Specific Stems in SuperCool
When you use the text box to specify your stems, be precise about what you want and what quality you need. Here are SuperCool prompt examples for the most common use cases:
The Acapella Pull:
"Extract the lead vocal stem as a clean, isolated file. Remove all background instrumentation, reverb, and percussion. I want the dry vocal only with no bleed from other instruments."
The Instrumental Creator (Karaoke Track):
"Remove the lead vocals from this track and return a clean instrumental version. Maintain the full dynamic range of the drums, bass, guitar, and synths. The result should be usable as a backing track for live performance."
The Drum Isolation:
"Isolate only the drum and percussion stems from this file. Separate them from all melodic and harmonic content. Return the rhythmic foundation as a standalone file."
The Bass Extraction:
"Extract the bass stem from this track. Isolate it from the drums, vocals, and melodic instruments. I want a clean low-end foundation I can use in a new arrangement."
The Full Stem Pack: > Select the 'Extract All Stems' option in the Edits panel to receive every element separated (vocals, drums, bass, guitar, piano, and other). This gives you the complete toolkit for a full remix!
4. What to Do With Your Extracted SuperCool Stems
Once you have your stems, the creative options open up significantly. Here is how to take each stem further inside SuperCool:
Remix the track from scratch: Upload your individual stems back into a new SuperCool session and prompt a remix:
"I have the isolated vocal, drum, and bass stems from an original track. Build a new arrangement around these stems. Add a modern trap beat under the drums, introduce a synthesizer pad in the verses, and bring in a fuller production in the chorus. Keep the vocal stem untouched."
Replace a specific instrument:
"I have the instrumental stem from a track with the guitar removed. Generate a new electric guitar part that fits the key and tempo of this instrumental and blend it back into the mix."
Create a new genre version:
"Using the vocal stem from this pop track, create a new lo-fi hip-hop version. Build a new instrumental bed underneath the vocal: mellow boom-bap drums, a dusty piano sample, and a warm bass line. The vocal should sit naturally in the new mix."
Use a stem as a sample:
"I have an isolated drum stem from a 1970s soul recording. Use this as the rhythmic foundation for a new beat. Layer modern bass and synth elements over it while keeping the original drum character intact."
5. Getting the Best Results from SuperCool
A few things to keep in mind before you separate your tracks:
Source Quality Matters: A well-mastered WAV or high-bitrate MP3 will separate much more cleanly in SuperCool than a compressed or low-quality file.
Studio vs. Live: Studio recordings separate more cleanly than live recordings. Live recordings have significant bleed between microphones, which makes clean separation harder for the AI.
Audio Bleed: Some bleed between stems is normal. In a dense mix, a small amount of one instrument may appear in another stem. This is a technical limitation of the audio separation process, not an error. Uploading a higher-quality source file usually reduces this.
Pro Tip: If your only goal is to create a karaoke version, skip the full six-stem extraction and use the two-stem option instead (vocals and instrumental). The two-stem model is specifically optimized for that split and consistently produces a cleaner instrumental track than pulling the vocal out of a full six-stem extraction!