Pitch-shifting is the human-made algorithmic transformation of an audio signal that changes its perceived pitch by altering fundamental frequency and harmonic content while preserving temporal duration. Parameters include pitch shift ratio/factor, formant preservation method, analysis window length, hop size, phase vocoder settings, and overlap-add method. It persists through DSP textbooks, software libraries, and audio production workflows. [formal: musica | substrate: mind | horizon: generations | explicit: yes | epoch: 0.12]
Accepted ontology entry
pitch-shifting
Pitch-shifting is the human-made algorithmic transformation of an audio signal that changes its perceived pitch by altering fundamental frequency and harmonic content while preserving temporal duration. Parameters include pitch shift ratio…
Definition
Why it is in scope
A human-made audio signal processing technique for changing perceived pitch without altering duration, built to persist as documented algorithm and software implementation.
Names and aliases
- pitch-shiftingen · CANONICAL
Relations from this entry
- cmsps9i0v06eejlssqrjcqyviINSTANCE_OF →
Pitch-shifting is a specific audio signal processing technique; a competent speaker would call it a signal processing method. Specific→general per Law 9.
- cmrw0g7st02xt2ceiy2ihtwthDEPENDS_ON →
pitch-shifting algorithms (like PSOLA or phase-vocoder) depend on sampling — they operate on discrete audio samples and the pitch-shifting mechanism works by manipulating sample-level timing and phase. Remove sampling and the algorithm has no data structure to operate on.
Relations to this entry
- cmsrfbgwp01aykp53wp0b02wy← SERVES
Phase-vocoder is a signal-processing algorithm constructed specifically to enable independent control of pitch and time scale, and is the canonical method used for pitch shifting in audio. Servant→master.
- formant-preserving-pitch-shift← INSTANCE_OF
Formant-preserving-pitch-shift is a specific variant of pitch-shifting that constrains the transformation to maintain formant structure.
Record identity
- Created
- Aug 23, 2026, 2:24 AM UTC
- Content hash
- 1d6257ac77f35833f8bb6d6ac6b2a1e9a8529de4d370bca62cd74bb86c4a1475