Voiced sound detection (VSD)

Flowchart for HMM:
	1. goDataCollect: Collect training/test data
	2. getTransProb: Compute transition probability and store it as transProb.mat
	3. goGmmcDesign: Get GMM for each state (Input index should be set to [1 2 3] to select all inputs)
	4. goHmmTestOne: Test HMM on a wave file
	5. goHmmTestAll: Test HMM on all wave files
	6. goHmmTrainTestAll: Train and test HMM on all wave files

Flowchart for QC:
	1. goDataCollect: Collect training/test data
	2. goSelectInput: Select 2 inputs
	3. goQcDesign: QC design

Data visualization:
	1. goPlotDataAll: Data plots of all kinds
	2. goPlotSelectedInput: 2D scatter data plot of the selected inputs

Function list:
	vsdParamSet.m: Set up parameters for VSD
	wave2feature.m: Wave to feature conversion
	waveDecode.m: Decode a wave for VSD