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. Author manuscript; available in PMC: 2019 Apr 2.
Published in final edited form as: IEEE/ACM Trans Audio Speech Lang Process. 2017 Feb 13;25(5):952–964. doi: 10.1109/TASLP.2017.2667879

Fig. 4.

Fig. 4.

Illustration of pitch candidates and harmonic structure scenarios. (a) F0 candidate extraction. (b) Harmonic structure of the correct F0 candidates (241 Hz). (c) Harmonic structure of the wrong F0 candidates (121 Hz). (d) Harmonic structure of the wrong F0 candidates (81 Hz).