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Stem Split

Isolate vocals, drums, bass, melody

Upload any audio track and AI separates it into individual stems -- vocals, drums, bass, and melody. Perfect for remixing, sampling, karaoke tracks, and practice.

$0.072 per run

1 × $0.072 per generation (Mureka Stem Separation, stem separation) = $0.072

Base model cost + a flat 20% platform fee, shown before you spend.

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Stem Split example output

How Stem Split Works

Stem Split uses AI source separation to decompose a mixed audio track into individual instrument stems. The AI model, trained on millions of songs, identifies and isolates the distinct audio sources within the mix. Standard separation produces 4 stems: vocals, drums, bass, and other (melody/instruments). Some modes offer 6-stem separation that further divides the "other" category into piano, guitar, and remaining instruments. Musicians use Stem Split for remixing, sampling, and mashup creation. Producers extract vocal tracks to create acapella versions or remix stems. DJs isolate drums for beatmatching or vocals for live mashups. Karaoke enthusiasts remove vocals from songs. Music students isolate individual instruments for practice and transcription. Upload the highest quality audio file available -- lossless formats (WAV, FLAC) produce cleaner separation than compressed formats (MP3 at 128kbps). Songs with clear separation between instruments in the original mix produce the best stems. Heavily layered or distorted tracks may have some bleed between stems, especially between guitar and vocal frequencies.

How it works

1

Upload your audio track

2

AI separates into 4-6 stems automatically

3

Download individual stems (vocals, drums, bass, melody)

What you'll get

Stem Split

Audio output

0:00 Duration varies

Studio-quality audio at up to 48kHz sample rate

Natural-sounding output with minimal artifacts

WAV or MP3 format for any workflow

Adjustable duration and style parameters

Commercial license included with every file

Instant download and API access

Frequently asked questions

Do I need a subscription to use Stem Split?
No. FairStack uses pay-per-use pricing. Add funds to your account and use any tool whenever you need it. There is no subscription, no monthly commitment, and no minimum spend.
What file formats does Stem Split support?
Stem Split outputs WAV and MP3. You can download results instantly after generation. All outputs are full quality with no watermarks.
How long does Stem Split take?
Most generations complete in 5-20 seconds depending on length. Processing time depends on the complexity of your input and the selected quality settings. You can monitor progress in real time.
Can I use Stem Split outputs commercially?
Yes. All outputs generated on FairStack include a commercial-use license. You can use them in client work, products, marketing materials, social media, and any other commercial context.
What audio format and quality are the output stems?
Each stem is delivered as a separate WAV file at 44.1kHz sample rate, matching the input duration. A 4-stem split produces 4 files (vocals, drums, bass, other). All stems maintain the original audio quality with minimal artifacts.
Can I use separated stems for commercial remixes and productions?
FairStack provides the separation technology and includes a commercial-use license for the AI processing. However, if you are separating copyrighted music, you are responsible for having appropriate rights or licenses for the original recording.
Can I process multiple tracks for stem separation in batch?
The web app processes one track at a time. The FairStack API supports batch audio processing for submitting multiple tracks. Each separation costs $0.072, whatever the track length. A 10-track album costs $0.72.

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