C++ (Cpp) Sound_to_MixingMatrix Examples

Example #1

File: ICA.cpp Project: guilhermegarcia/praat-1

autoSound Sound_to_Sound_BSS (Sound me, double startTime, double endTime, long ncovars, double lagStep, long maxNumberOfIterations, double tol, int method) {
	try {
		autoMixingMatrix him = Sound_to_MixingMatrix (me, startTime, endTime, ncovars, lagStep, maxNumberOfIterations, tol, method);
		autoSound thee = Sound_and_MixingMatrix_unmix (me, him.peek());
		return thee;
	} catch (MelderError) {
		Melder_throw (me, U": not separated.");
	}
}

Example #2

File: EEG_extensions.cpp Project: arizona-phonological-imaging-lab/ultrapraat

EEG EEG_to_EEG_bss (EEG me, double startTime, double endTime, long ncovars, double lagTime, const wchar_t *channelRanges, int whiteningMethod, int diagonalizerMethod, long maxNumberOfIterations, double tol) {
	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;
		}
		long numberOfChannels;
		autoNUMvector <long> channelNumbers (NUMstring_getElementsOfRanges (channelRanges, my d_numberOfChannels, & numberOfChannels, NULL, L"channel", true), 1);
		autoEEG thee = my f_extractPart (startTime, endTime, true);
		if (whiteningMethod != 0) {
			bool fromCorrelation = whiteningMethod == 2;
			autoPCA pca = EEG_to_PCA (thee.peek(), thy xmin, thy xmax, channelRanges, fromCorrelation);
			autoEEG white = EEG_and_PCA_to_EEG_whiten (thee.peek(), pca.peek(), 0);
			thee.reset (white.transfer());
		}
		autoMixingMatrix mm = Sound_to_MixingMatrix (thy d_sound, startTime, endTime, ncovars, lagTime, maxNumberOfIterations, tol, diagonalizerMethod);

		autoEEG him = EEG_copyWithoutSound (me);
		his d_sound = Sound_and_MixingMatrix_unmix (my d_sound, mm.peek());
		EEG_setChannelNames_selected (him.peek(), L"ic", channelNumbers.peek(), numberOfChannels);

		// Calculate the cross-correlations between eye-channels and the ic's


		return him.transfer();

	} catch (MelderError) {
		Melder_throw (me, ": no independent components determined.");
	}
}