How to Separate Music into Stems
Stem separation lets you break any song into its individual parts — vocals, drums, bass, and other instruments. Here's how to do it with AI.
What Are Stems?
In music production, "stems" are the individual audio tracks that make up a finished song. A typical song might have stems for vocals, drums, bass, guitars, keyboards, and other instruments. When you have access to stems, you can remix, re-arrange, or re-mix any part of the song independently.
Traditionally, stems were only available if you had access to the original recording session files. AI stem separation changes that — it can extract individual parts from any mixed audio file, even if you only have the final stereo mix.
Vocals
Drums
Bass
Other
How AI Stem Separation Works
AI stem separation uses deep neural networks trained on large datasets of multi-track recordings. The model learns to identify the spectral characteristics of different instruments and isolate them from a mixed signal.
When you upload a song, the AI analyzes the entire audio spectrum and assigns each frequency and time region to the most likely source instrument. The result is multiple separate audio files — one for each stem — that together reconstruct the original mix.
Quality note: AI separation has improved dramatically in recent years. Modern models produce stems that are clean enough for professional remixing and production work, though results may vary with very dense or heavily processed mixes.
Step-by-Step: Separate a Song
Upload your audio file
Upload any song in MP3, WAV, FLAC, or other common audio formats. No pre-processing needed — just upload the file as-is.
AI separates the stems
The AI analyzes the audio and splits it into individual stems. This usually takes just a few seconds, depending on the length of the track.
Preview each stem
Listen to each isolated stem individually — vocals, drums, bass, and other instruments. Make sure the separation sounds clean before downloading.
Download your stems
Download individual stems or all of them at once. Each stem is a separate audio file you can import into any DAW or audio editor.
What Stems You Get
RiffGen's Music Separation extracts these stems from any song:
Vocals
All vocal content — lead vocals, harmonies, background vocals, and ad-libs. Useful for acapellas, remixing, and vocal analysis.
Drums
The full drum kit — kick, snare, hi-hats, cymbals, and percussion. Great for studying grooves, replacing drums, or building new beats.
Bass
The bass line — electric bass, synth bass, or any low-end instrument carrying the harmonic foundation. Useful for learning bass parts or re-mixing the low end.
Other instruments
Everything else — guitars, keyboards, synths, strings, horns, and any other instrumentation. This stem contains the harmonic and melodic content beyond vocals, drums, and bass.
What to Do with Your Stems
Remixing
Re-arrange, re-process, or combine stems from different songs to create entirely new tracks.
Sampling
Extract a clean drum loop, vocal phrase, or bass line to use as a sample in your own production.
Learning & practice
Isolate a guitar solo, drum pattern, or bass line to study and practice along with.
Karaoke
Use the instrumental stem (everything minus vocals) as a karaoke or sing-along track.
Covers
Remove the original vocals and record your own over the original instrumentation.
DJ sets
Use isolated vocals or instrumentals for creative DJ transitions and mashups.
Music education
Break down songs to teach arrangement, orchestration, and mixing concepts.
Content creation
Use isolated stems as background audio for videos, podcasts, and social media content.
Tips for Best Results
Start with high-quality audio
Higher quality source files produce cleaner stems. Use 320kbps MP3 or lossless formats (WAV, FLAC) whenever possible.
Studio recordings separate best
Professionally recorded and mixed tracks produce the cleanest stems. Live recordings with bleed between microphones are harder to separate cleanly.
Dense mixes may have more artifacts
Songs with many layered instruments in similar frequency ranges can be harder to separate. Sparse arrangements tend to produce the cleanest results.
Check each stem individually
Always preview each stem on its own before downloading. This helps you catch any artifacts or bleed between stems.
The "other" stem is a catch-all
If you hear an instrument in the "other" stem that you expected in a different stem, this is normal — the AI groups less common instruments together.
Combine stems for custom mixes
Import stems into your DAW and combine them in any way you like. Want vocals + drums only? Just mute the other stems.
Ready to split a song into stems?
Upload any track and get clean, separated stems in seconds. No DAW or audio engineering experience needed.