So sánh phương pháp

	Thuật toán phát hiện cao độ	Trích xuất giai điệu
Lĩnh vực	Truy hồi thông tin âm nhạc	Truy hồi thông tin âm nhạc
Họ	Machine learning	Machine learning
Năm ra đời	2002	2008
Người khởi xướng	Alain de Cheveigné	Anssi Klapuri
Loại	Fundamental frequency estimation	Polyphonic audio analysis
Công trình gốc	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.
Tên gọi khác	f0 detection, fundamental frequency tracking, monophonic pitch extraction	pitch contour extraction, melodic line extraction, f0 tracking
Liên quan	5	5
Tóm tắt	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.