  This paper focuses on the problem of pitch tracking in noisy conditions. A
method using harmonic information in the residual signal is presented. The
proposed criterion is used both for pitch estimation, as well as for
determining the voicing segments of speech. In the experiments, the method is
compared to six state-of-the-art pitch trackers on the Keele and CSTR
databases. The proposed technique is shown to be particularly robust to
additive noise, leading to a significant improvement in adverse conditions.
