AI Stem Splitter

AI stem splitting is a technology that separates a mixed audio recording into individual instrument and vocal tracks—called 'stems.' Unlike older methods that simply filter out certain frequencies (often producing hollow or phased results), AI understands the unique characteristics of each instrument and extracts them cleanly. This means you get a natural-sounding vocal track without drums bleeding through, or a drum track without vocal remnants.

The default 6-stem mode separates your audio into vocals, drums, bass, guitar, piano, and other instruments. If you only need a simpler split, the 4-stem modes separate into vocals, drums, bass, and a combined 'other' category. You can choose the mode that best fits your project before processing.

You can upload MP3, WAV, OGG, M4A, and AAC files. For the best separation quality, we recommend uploading the highest quality version you have—WAV or high-bitrate MP3 files give the AI the most detail to work with. Output is available as MP3 (smaller file size) or WAV (lossless quality).

Most songs between 3 and 5 minutes are processed in 1–3 minutes. Longer files take proportionally more time. Processing speed also depends on the separation model you choose—the 6-stem model takes slightly longer than the 4-stem models because it's doing more detailed analysis. You'll see a progress indicator while your stems are being separated.

Our AI produces studio-grade stems suitable for professional music production, podcast editing, and broadcast use. That said, no separation tool is perfect—heavily layered or compressed audio may have slight bleed between stems. For best results, start with high-quality source audio where instruments are reasonably distinct. In most cases, the output is clean enough to use directly in a mix.

Yes. Your uploaded files are processed securely and are not shared with other users or used for any purpose beyond generating your stems. We recommend reviewing our privacy policy for full details, but your audio stays yours—we don't store or redistribute it.

The tool itself places no restrictions on how you use your stems. However, commercial use depends entirely on your rights to the original audio. If you own the recording or have proper licensing, you're free to use the stems in commercial projects. For copyrighted music, make sure you have the appropriate permissions before distributing or monetizing the separated tracks.

The 6-stem model (default) gives you the most granular separation—vocals, drums, bass, guitar, piano, and other instruments each get their own track. The fine-tuned 4-stem model focuses on vocals, drums, bass, and other, often producing tighter results for those four categories. The standard 4-stem and MDX models offer alternative approaches that may work better for certain types of music. If you're unsure, start with the default 6-stem option.

Professionally mixed and mastered songs with clear instrument separation produce the best results. Acoustic recordings, pop, rock, and electronic music tend to separate very cleanly. Audio with heavy compression, excessive reverb, or very dense layering (like orchestral recordings) can be more challenging. Live recordings with audience noise may also have more bleed between stems.

Try switching to a different separation model—each one handles audio differently, and some work better for certain genres or recording styles. Also check your source audio quality: a 128kbps MP3 will produce noticeably worse stems than a WAV file of the same song. If you're only interested in vocals, the MDX model is specifically optimized for vocal extraction and may give you cleaner results than the general-purpose models.