Real-Time Polyphonic Pitch Detection on Acoustic Musical Signals | IEEE Conference Publication | IEEE Xplore

Real-Time Polyphonic Pitch Detection on Acoustic Musical Signals


Abstract:

This paper presents an algorithm for fundamental frequency detection on polyphonic acoustic musical signals, based on a new `raking' method over the frequency-domain spec...Show More

Abstract:

This paper presents an algorithm for fundamental frequency detection on polyphonic acoustic musical signals, based on a new `raking' method over the frequency-domain spectra. The algorithm is evaluated as a classifier, and boasts a good accuracy (83.20%) compared to other such methods, as well as the ability to function effectively in real-time, with a running-speed below 140ms per window evaluated. This proves to be real-time for the use-case, as the latency between an auditory stimulus and its perception by a person has been shown to be longer than this. The algorithm itself runs in linear-time, but is thus slowed by the O(nlog(n)) Fast Fourier Transform during preprocessing. Though the algorithm fails to account for certain edge-cases with overlapping harmonics as well as certain instruments, future work and improvements are also presented, paving the way for further research.
Date of Conference: 06-08 December 2018
Date Added to IEEE Xplore: 17 February 2019
ISBN Information:
Print on Demand(PoD) ISSN: 2162-7843
Conference Location: Louisville, KY, USA

References

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