1. Boersma, P.: Accurate short-term analysis of the fundamental frequency and the harmonics-to-noise ratio of a sampled sound. In: Proceedings of the Institute of Phonetic Sciences (IFA), vol. 17, pp. 97–110 (1993)
2. Borowska, B., Nadolski, S.: Particle swarm optimization: the gradient correction. Journal of Applied Computer Science 17(2), 7–15 (2009)
3. Davy, M., Klapuri, A.P.: Signal Processing Methods for Music Transcription. Springer (2006)
4. Dressler, K.: Multiple fundamental frequency extraction for mirex 2012. In: Proceedings of the 13th International Conference on Music Information Retrieval (2012)
5. SCI;W. Jiang,2010