Table 6: Summary of the comparison between threshold-based and hierarchical regression segmentation of EGG waveforms. For this purpose recordings of words (ca. 40 words) produced in isolation by two males and two females have been examined. Statistical significance was proven using t-tests.

PAIRED SAMPLES T-TEST ON Open Quotient I vs. HLR Open Quotient I WITH 160 CASES MEAN DIFFERENCE = 5.616 SD DIFFERENCE = 2.652 T = 26.784 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON Open Quotient II vs. HLR Open Quotient II WITH 160 CASES MEAN DIFFERENCE = 6.027 SD DIFFERENCE = 5.731 T = 13.301 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON Speed Quotient I vs. HLR Speed Quotient I WITH 160 CASES MEAN DIFFERENCE = -0.002 SD DIFFERENCE = 3.693 T = -0.006 DF = 159 PROB = 0.995 PAIRED SAMPLES T-TEST ON closing slope vs. HLR closing slope WITH 160 CASES MEAN DIFFERENCE = -15.100 SD DIFFERENCE = 177.534 T = -1.076 DF = 159 PROB = 0.284 PAIRED SAMPLES T-TEST ON opening slope vs. HLR opening slopeWITH 160 CASES MEAN DIFFERENCE = 1.705 SD DIFFERENCE = 5.728 T = 3.764 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON Speed Quotient II vs. HLR Speed Quotient II WITH 160 CASES MEAN DIFFERENCE = 9.296 SD DIFFERENCE = 13.911 T = 8.453 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON end of closing slope vs. HLR end of closing slope WITH 160 CASES MEAN DIFFERENCE = 8.837 SD DIFFERENCE = 81.353 T = 1.374 DF = 159 PROB = 0.171 PAIRED SAMPLES T-TEST ON start of opening slope vs. HLR start of opening slope WITH 160 CASES MEAN DIFFERENCE = 1.225 SD DIFFERENCE = 31.411 T = 0.493 DF = 159 PROB = 0.622 PAIRED SAMPLES T-TEST ON end of opening slope vs. HLR end of opening slopeWITH 160 CASES MEAN DIFFERENCE = -63.992 SD DIFFERENCE = 43.722 T = -18.513 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON start of closing slope vs. HLR start of closing slope WITH 160 CASES MEAN DIFFERENCE = 97.951 SD DIFFERENCE = 557.184 T = 2.224 DF = 159 PROB = 0.028

PAIRED SAMPLES T-TEST ON end of closing duration vs. HLR end of closing duration WITH 160 CASES MEAN DIFFERENCE = -1.038 SD DIFFERENCE = 0.918 T = -14.302 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON full closure duration vs. HLR full closure duration WITH 160 CASES MEAN DIFFERENCE = 1.650 SD DIFFERENCE = 1.809 T = 11.534 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON end of closing duration vs. HLR end of closing duration WITH 160 CASES MEAN DIFFERENCE = -6.248 SD DIFFERENCE = 2.805 T = -28.175 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON end of opening duration vs. HLR end of opening duration WITH 160 CASES MEAN DIFFERENCE = -2.626 SD DIFFERENCE = 3.895 T = -8.526 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON full open duration vs. HLR full open duration WITH 160 CASES MEAN DIFFERENCE = 6.084 SD DIFFERENCE = 5.716 T = 13.463 DF = 159 PROB = 0.000 PAIRED SAMPLES T-TEST ON start of closing duration vs. HLR start of closing duration WITH 160 CASES MEAN DIFFERENCE = 2.177 SD DIFFERENCE = 4.295 T = 6.412 DF = 159 PROB = 0.000