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	Detekcia hudobného tónorodu	Algoritmus detekcie výšky tónu
Odbor	Vyhľadávanie hudobných informácií	Vyhľadávanie hudobných informácií
Rodina	Machine learning	Machine learning
Rok vzniku	2006	2002
Tvorca	Emilia Gómez	Alain de Cheveigné
Typ	Tonal center estimation	Fundamental frequency estimation
Pôvodný zdroj	Gómez, E. (2006). Tonal description of polyphonic audio for music content processing. In INESC Porto PhD Thesis.	de Cheveigné, A., & Kawahara, H. (2002). YIN, a fundamental frequency estimator for speech and music. The Journal of the Acoustical Society of America, 111(4), 1917-1930.
Ďalšie názvy	key recognition, tonality estimation, musical center detection	f0 detection, fundamental frequency tracking, monophonic pitch extraction
Príbuzné	5	5
Zhrnutie	Musical key detection is the task of automatically determining the key (tonal center) and scale mode of a musical composition from its audio. Introduced formally by Gómez (2006), it is essential for music analysis, transposition, harmonic understanding, and music theory education. The key defines the tonal center around which a piece gravitates; identifying it enables deeper structural understanding. Key detection is closely related to chord recognition but operates at a higher level of abstraction.	Pitch detection (or fundamental frequency estimation) is the task of automatically determining the perceived pitch of a monophonic (single-source) audio signal at each moment in time. Formalized by de Cheveigné and Kawahara (2002) through the YIN algorithm, it is foundational to music and speech processing. Pitch detection enables vocal analysis, music transcription, instrument tuning, and speech analysis. Monophonic pitch is unambiguous; polyphonic pitch detection is fundamentally harder and a distinct problem.