01
Bass players learning a song
Hear notes, slides, articulation, and rhythmic placement with less masking from the mix, then write the line out as tab or notation.
Bass Extractor
Choose the stems to create
Split into vocals, drums, bass and other instruments.
Output format
Estimated costAbout 80 credits
Bass Extractor
Separate the bass from a finished song
Upload a track and Lacuna's AI bass extractor pulls the bass line out as its own stem. Solo it to transcribe or practice, or remove the bass and play over the rest of the band.
How it works
Move from full mix to bass stem in three steps
1STEP 1
Upload the song
Add an MP3, WAV, FLAC, AAC, M4A, or OGG file up to 50 MB and 12 minutes.
2STEP 2
Select bass
Bass is already selected. Lacuna separates the bass line from vocals, drums, and the remaining instruments in a four-stem split.
3STEP 3
Preview and download
Solo the bass, compare it with the original mix, or mute it and export a remix without it. Download as MP3 or WAV.
What you get
A bass extractor that returns the part, not low-pass rumble
An EQ filter keeps everything below the cutoff, kick drum included. AI source separation estimates the bass part itself, so the stem has pitch and attack you can follow.
An isolated bass stem
The bass line lands on its own track, apart from vocals, drums, and other instruments. Notes, slides, and rhythmic placement are easier to hear.
Remove the bass for a backing track
Mute the bass in the mixer and export the remix as a version of the song without it. Play your own line over the original vocals, drums, and harmony.
Compare with the original mix
Switch between the separated stems and the source recording. Solo or mute any part, and set volume and pan before you export.
MP3 or WAV for the next step
Download the bass stem as MP3 or lossless WAV for your DAW, or take it to MP3 to MIDI and turn the line into editable notes.
Who it's for
Hear the line, learn the part, or rebuild the low end
Bass guitar and bass synth may share one stem when they occupy the same role in the original arrangement.
02
Play-along practice
Remove the bass and play the part yourself over the original band, or keep the stem quiet in the mixer as a guide.
03
Producers and remixers
Use the isolated low end as a reference when rearranging, remixing, or replacing the bass part in a production.
04
Teachers and students
Prepare a bass-only version and a bassless version of the same song, so a lesson can move from listening to playing.
FAQ
Bass extraction questions
Upload the song, keep bass selected, and start the separation. When it finishes, solo the bass stem in the mixer to check it, then download it as MP3 or WAV.
It estimates the bass role in the finished mix and returns it as a separate stem. Depending on the arrangement, that may include bass guitar, synth bass, or both.
Yes. Mute the bass stem in the mixer and use Export remix. The file keeps the vocals, drums, and other instruments, which works as a backing track for bass practice.
Not reliably as separate files. When both occupy the bass role, they may be grouped into the same bass stem.
Kick and bass often overlap in frequency and dynamics. Dense limiting, distortion, and sidechain processing can make their boundaries harder to estimate.
You get monthly credits free to start. Each separation shows its estimated credit cost before you run it, and you can top up when you need more.
Upload MP3, WAV, FLAC, AAC, M4A, or OGG files up to 50 MB and 12 minutes. Download the separated bass as MP3 or WAV.
You can download the stem and take it to the MP3 to MIDI tool. Cleaner single-instrument input generally gives transcription a better starting point than a full mix.
Related tools
Continue from isolated bass to notes or a full stem set
Bring the bass line forward
Upload a song, isolate the bass stem, and hear the low end without the full mix around it.