Phase-aware signal processing has received increasing interest
in many speech applications. The success of phase-aware
processing depends strongly on the robustness of the clean
spectral phase estimates to be obtained from a noisy observation.
In this paper, we propose a novel harmonic phase estimator
relying on the phase invariance property exploiting
relations between harmonics using the phase structure. We
present speech quality results achieved in speech enhancement
to justify the effectiveness of the proposed phase estimator
compared to noisy phase and other phase estimation
benchmarks.