Pitch-synchronous processing is a human-made audio signal-processing method that aligns the analysis and synthesis of a signal to the detected pitch period (fundamental-frequency cycle) of a voiced source. Parameters: (1) a pitch-period estimate F0(t) per analysis window, obtained by pitch detection; (2) window placement — analysis/synthesis windows centered on or aligned to detected glottal pulses; (3) per-frame gain and phase handling (e.g., PSOLA gain preservation, phase-locked resynthesis); (4) the target operation — time stretching, pitch shifting, or analysis-synthesis. It persists as a documented algorithm family (PSOLA, PSOLA-WSOLA, pitch-synchronous codecs) in audio-engineering literature and reference DSP implementations. [formal: processio periodica | substrate: mind | horizon: generations | explicit: yes | epoch: 0.50]
Accepted ontology entry
pitch-synchronous
Pitch-synchronous processing is a human-made audio signal-processing method that aligns the analysis and synthesis of a signal to the detected pitch period (fundamental-frequency cycle) of a voiced source. Parameters: (1) a pitch-period es…
Definition
Why it is in scope
A human-made audio signal-processing method built to persist as a documented technique for aligning analysis and synthesis with pitch periods.
Names and aliases
- pitch-synchronousen · CANONICAL
Relations from this entry
- cmsqhb9yr0000ti67kxhwaqqbDEPENDS_ON →
Pitch-synchronous processing requires pitch period information to align analysis windows with pitch cycles. Remove pitch-detection and pitch-synchronous processing stops operating — it cannot function without pitch periods. Constitutive dependency.
- speech-processingINSTANCE_OF →
Pitch-synchronous processing is a specific kind of speech-processing method. It aligns analysis and synthesis with pitch periods, a task intrinsic to speech/audio processing. Nearest kind is speech-processing.
- vocoderINSTANCE_OF →
Pitch-synchronous is a specific type of vocoder technique that operates on a per-frame or per-syllable basis rather than on a continuous frame-by-frame analysis approach. It IS a kind of vocoder. Direction: specific→general. Law 9 satisfied.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Aug 31, 2026, 4:18 PM UTC
- Content hash
- f28c88c7f36ef5aaa77ecd3bd2d05ba0979841f9bedf94585019c0dd3b014012