เปรียบเทียบวิธี

	อัลกอริทึมตรวจจับระดับเสียง	การสกัดทำนองหลัก
สาขาวิชา	การสืบค้นสารสนเทศดนตรี	การสืบค้นสารสนเทศดนตรี
ตระกูล	Machine learning	Machine learning
ปีกำเนิด	2002	2008
ผู้ริเริ่ม	Alain de Cheveigné	Anssi Klapuri
ประเภท	Fundamental frequency estimation	Polyphonic audio analysis
แหล่งต้นตำรับ	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.	Salamon, J., & Gómez, E. (2014). Melody extraction from polyphonic music signals using pitch contour characteristics. IEEE Transactions on Audio, Speech, and Language Processing, 20(6), 1759-1770.
ชื่อเรียกอื่น	f0 detection, fundamental frequency tracking, monophonic pitch extraction	pitch contour extraction, melodic line extraction, f0 tracking
ที่เกี่ยวข้อง	5	5
สรุป	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.	Melody extraction is the task of automatically isolating the main melodic contour from polyphonic music recordings. It originated from music transcription research in the 2000s and addresses the core challenge of human pitch perception: identifying the perceptually dominant pitch when many instruments play simultaneously. Modern approaches use deep learning and are essential for music analysis, cover song detection, and music-to-lyrics alignment.