Praat pitch tracking support autocorrelation vs cross-correlation

[cwnaber]

To do this, change get_pitch_tracks.praat so that the "To Pitch ()..." call selects either "To Pitch (ac)" for autocorrelation or "To Pitch (cc)" for cross-correlation based on the values on something in sigproc_params. This would involve changes to get_sig_pitch.m, wave_viewer.m, and free-speech/get_sigproc_defaults.m to add the new parameter.

[parrell]

I would say this is very low priority.