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language variant name Nguyen pitch 95 175 formant 0 100 125 100 formant 1 96 90 80 formant 2 97 70 90 formant 3 97 60 90 formant 4 97 60 90 formant 5 75 50 90 formant 6 90 50 100 formant 7 100 50 100 formant 8 100 50 100 tone 100 200 600 150 800 100 2400 80 3600 95 5400 100