A lot of people get the impression it's only cancelling where there's no speech, but it's also cancelling during speech -- just not as much. If you look at the

A lot of people get the impression it's only cancelling where there's no speech, but it's also cancelling during speech -- just not as much. If you look at the spectrogram at the top of the demo, you can see HF noise being attenuated when there's LF speech and vice versa.