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OBTAIN: Real-Time Beat Tracking in Audio Signals

Ali Mottaghi1, Kayhan Behdin2, Ashkan Esmaeili2, Mohammadreza Heydari2, and Farokh Marvasti2
1.Sharif University of Technology, Electrical Engineering Department, Tehran, Iran
2.Advanced Communications Research Institute (ACRI), Tehran, Iran
Abstract—In this paper, we design a system in order to perform the real-time beat tracking for an audio signal. We use Onset Strength Signal (OSS) to detect the onsets and estimate the tempos. Then, we form Cumulative Beat Strength Signal (CBSS) by taking advantage of OSS and estimated tempos. Next, we perform peak detection by extracting the periodic sequence of beats among all CBSS peaks. In simulations, we can see that our proposed algorithm, Online Beat TrAckINg (OBTAIN), outperforms state-of-art results in terms of prediction accuracy while maintaining comparable and practical computational complexity. The real-time performance is tractable visually as illustrated in the simulations. 

Index Terms—onset strength signal, tempo estimation, beat onset, cumulative beat strength signal, peak detection

Cite: Ali Mottaghi,Kayhan Behdin, Ashkan Esmaeili, Mohammadreza Heydari, and Farokh Marvasti, "OBTAIN: Real-Time Beat Tracking in Audio Signals," International Journal of Signal Processing Systems, Vol. 5, No. 4, pp. 123-129, December 2017. doi: 10.18178/ijsps.5.4.123-129
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