Split a track into vocals and instrumental with Demucs on GPU. Pick the model and quality settings, optionally trim a segment, and review each run's parameters, per-step timings and output waveforms.
htdemucs_ft averages 4 fine-tuned sub-models: best quality, ~4× slower. htdemucs is a single model: still great and ~4× faster.0–1 = fastest; 2+ = cleaner separation but runtime scales roughly linearly.0.25 is the default; 0.5 reduces edge artifacts (a faint "echo") at the cost of speed.