BS-RoFormer Leap XE 90 bands + BS-RoFormer Leap Instrumental (vocals route)
ModelSpecialist vocal route: Leap XE 90 bands separates the vocal while BS-RoFormer Leap Instrumental provides the accompaniment reference pass.
Input
Music audio or video; choose vocals, drums, bass, guitar, piano, or other.
Supported formats
Output
One extracted target stem or a mix with that target removed.
Use case
Practice tracks, accompaniment, remixing, sampling, and targeted cleanup.
This tool is under maintenance. Please try again later.
Custom Instrument Stem processes one selected instrument per run. Vocals go through the specialist Leap XE 90 + BS-RoFormer Leap Instrumental path, while drums, bass, guitar, piano, and other use BS-RoFormer SW Fixed six-stem separation. Extract returns only the chosen stem; remove returns the mix without it.
Specialist vocal route: Leap XE 90 bands separates the vocal while BS-RoFormer Leap Instrumental provides the accompaniment reference pass.
BS-Rofo-SW-Fixed.ckpt + YAML
BS-RoFormer SW Fixed uses BS-Rofo-SW-Fixed.ckpt plus BS-Rofo-SW-Fixed.yaml to split a full mix into six WAV stems.
BS-RoFormer SW Fixed 6-stem
BS-RoFormer SW Fixed six-stem audio separator
Selected because BS-RoFormer SW Fixed 6-stem outputs vocals, drums, bass, guitar, piano, and other, with public MVSep and BS-RoFormer references.
Six WAV stems
HT Demucs
Separation baseline / fallback
HT Demucs is a strong open-source reference; this tool uses BS-RoFormer SW Fixed 6-stem because it directly targets the six displayed stems.
Context or fallback stems
Custom Instrument Stem processes one selected instrument per run. Vocals go through the specialist Leap XE 90 + BS-RoFormer Leap Instrumental path, while drums, bass, guitar, piano, and other use BS-RoFormer SW Fixed six-stem separation. Extract returns only the chosen stem; remove returns the mix without it.
Specialist vocal route: Leap XE 90 bands separates the vocal while BS-RoFormer Leap Instrumental provides the accompaniment reference pass.
BS-RoFormer SW Fixed uses BS-Rofo-SW-Fixed.ckpt plus BS-Rofo-SW-Fixed.yaml to split a full mix into six WAV stems.
Scores apply only to the cited dataset, metric and model version. Leading this table does not mean a current world record or a result from this service. Capabilities and tests can justify prioritizing models without comparable scores.
The table includes only models with public weights or configurations that can run locally.
This tool uses BS-RoFormer SW Fixed for vocals, drums, bass, guitar, piano, and other.
Public sources checked: 2026-09-10
| Test setting | Model | Vocals SDR (dB) | Detailed metrics |
|---|---|---|---|
| MVSep entry 8374 | BS-RoFormer SW Fixed 6-stemTelkNetMVSep entry 8374 This tool uses BS-RoFormer SW Fixed for vocals, drums, bass, guitar, piano, and other. | 11.3019 | Instrumental SDR (dB)17.5091Bass SDR (dB)14.6235Drums SDR (dB)14.1129Other SDR (dB)8.7169 |
| Rank | Model | Piano SDR (dB) | Detailed metrics |
|---|---|---|---|
| MVSep entry 9578 | BS-RoFormer SW FixedTelkNetMVSep entry 9578 | 7.8031Best | Other SDR (dB)19.5824Best |
| MVSep entry 7396 | Ensemble (SCNet + Mel)MVSep entry 7396 | 6.2054 | Other SDR (dB)18.4851 |
| MVSep entry 7395 | SCNet Large (2024.09)MVSep entry 7395 | 5.8912 | Other SDR (dB)18.1698 |
| MVSep entry 7394 | MelRoformer (viperx)MVSep entry 7394 | 5.7118 | Other SDR (dB)17.9917 |
| MVSep entry 7392 | mdx23c (2024.09)MVSep entry 7392 | 5.5996 | Other SDR (dB)17.8796 |
| MVSep entry 7390 | mdx23c (2023.08)MVSep entry 7390 | 4.7969 | Other SDR (dB)17.0766 |
BS-RoFormer SW Fixed · MVSep guitar SDR
Public sources checked: 2026-09-10
| Rank | Model | Guitar SDR (dB) | Detailed metrics |
|---|---|---|---|
| MVSep entry 9245 | BS-RoFormer SW FixedTelkNetMVSep entry 9245 | 9.0120Best | Other SDR (dB)15.9828Best |
| MVSep entry 7149 | Ensemble (BSRoformer + MelRoformer)MVSep entry 7149 | 7.5112 | Other SDR (dB)14.4820 |
| MVSep entry 6741 | Ensemble (mdx23 + MelRoformer)MVSep entry 6741 | 7.1835 | Other SDR (dB)14.1542 |
| MVSep entry 6776 | BSRoformer (viperx)MVSep entry 6776 | 7.1266 | Other SDR (dB)13.9775 |
| MVSep entry 6720 | MelRoformer (2024.06)MVSep entry 6720 | 7.0211 | Other SDR (dB)13.9919 |
| MVSep entry 6740 | mdx23c (2024.06)MVSep entry 6740 | 6.3422 | Other SDR (dB)13.3130 |
SDX23 music separation track - 2023
BS-RoFormer uses band-split spectrogram features plus RoPE Transformers; the SDX23 system ranked first in the music source separation track and a smaller version reported 9.80 dB average SDR on MUSDB18HQ.
ICASSP - 2023
HT Demucs replaces core Demucs layers with cross-domain Transformer attention and reports 9.20 dB SDR with extra data and fine-tuning.
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WAV download options
Keep the original sample rate for later editing and mixing.
Higher numbers cannot restore missing sound details. Sample-rate conversion preserves pitch and playback speed; the original file remains available.
3 audio tracks
TelkNet QA — batch-a
One extracted target stem or a mix with that target removed.