Source-separation is a signal processing technique that decomposes a mixed signal — typically audio containing multiple overlapping sound sources — into individual component sources. The method operates by exploiting differences in spatial position, spectral characteristics, temporal onset patterns, or statistical independence among sources. Common algorithms include Independent Component Analysis (ICA), Non-negative Matrix Factorization (NMF), and deep learning models trained on labeled source data. The persistence mechanism is algorithmic implementation within software pipelines and hardware systems for music information retrieval, audio engineering, and computational acoustics. [formal: separatio fontium | substrate: behavior | horizon: a moment | explicit: yes | epoch: 0.01]
Accepted ontology entry
source-separation
Source-separation is a signal processing technique that decomposes a mixed signal — typically audio containing multiple overlapping sound sources — into individual component sources. The method operates by exploiting differences in spatial…
Definition
Why it is in scope
Human-made signal processing technique: decomposing a mixed audio signal into its constituent source components — such as separating vocals from accompaniment, or instruments from each other. Built to persist through algorithmic implementations in music information retrieval, audio engineering, and computational acoustics.
Names and aliases
- source-separationen · CANONICAL
Relations from this entry
- cmsps9i0v06eejlssqrjcqyviDERIVED_FROM →
Which came first? Signal processing as a field predates source separation as a specific technique. Source separation emerged from within signal processing practice as the problem of separating mixed signals became prominent. Signal processing fed into the development of source separation.
- cmsps9i0v06eejlssqrjcqyviDEPENDS_ON →
Source separation algorithms need signal processing techniques (filtering, spectral analysis) to operate now. Remove DSP and source separation stops working. Law 8 removal test passes.
Relations to this entry
- cmsryzzp400pvh7yu3qlyeuiu← INSTANCE_OF
Harmonic-percussive separation is a specific kind of source-separation technique: it decomposes an audio mixture into two constituent source types (harmonic and percussive). A competent speaker would call HPS 'a source-separation method.' The filer pins the sense of source-separation as the general class of techniques for decomposing mixed signals into component sources, and HPS is a specific member of that class.
- harmonic-percussive-source-separation← INSTANCE_OF
Harmonic-percussive-source-separation is a specific technique for separating audio mixtures into harmonic and percussive components. Source-separation is the general class of methods for decomposing mixtures into constituent sources. Specific→general, nearest kind.
Record identity
- Created
- Aug 13, 2026, 8:46 PM UTC
- Content hash
- 4c632bb9364945dd53ecd5f37121988b7f455a704f918479c7871399268abb20