示例#1
0
autoMixingMatrix Sound_to_MixingMatrix (Sound me, double startTime, double endTime, long ncovars, double lagStep, long maxNumberOfIterations, double tol, int method) {
	try {
		autoCrossCorrelationTables ccs = Sound_to_CrossCorrelationTables (me, startTime, endTime, lagStep, ncovars);
		autoMixingMatrix thee = MixingMatrix_create (my ny, my ny);
		MixingMatrix_and_CrossCorrelationTables_improveUnmixing (thee.peek(), ccs.peek(), maxNumberOfIterations, tol, method);
		return thee;
	} catch (MelderError) {
		Melder_throw (me, U": no MixingMatrix created.");
	}
}
CrossCorrelationTables EEG_to_CrossCorrelationTables (EEG me, double startTime, double endTime, double lagTime, long ncovars, const wchar_t *channelRanges) {
	try {
		// autowindow
		if (startTime == endTime) {
			startTime = my xmin; endTime = my xmax;
		}
		// don't allow times outside domain
		if (startTime < my xmin) {
			startTime = my xmin;
		}
		if (endTime > my xmax) {
			endTime = my xmax;
		}
		autoEEG thee = my f_extractPart (startTime, endTime, true);
		long numberOfChannels;
		autoNUMvector <long> channels (NUMstring_getElementsOfRanges (channelRanges, thy d_numberOfChannels, & numberOfChannels, NULL, L"channel", true), 1);
		autoSound soundPart = Sound_copyChannelRanges (thy d_sound, channelRanges);
		autoCrossCorrelationTables him = Sound_to_CrossCorrelationTables (soundPart.peek(), startTime, endTime, lagTime, ncovars);
		return him.transfer();
	} catch (MelderError) {
		Melder_throw (me, ": no CrossCorrelationTables calculated.");
	}
}