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  Indian J Med Microbiol
 

Figure 4: Comparison between phonation of/a/and/E/PRAAT software (F1-F0 analysis) in all semi-occluded vocal tract exercises (a) comparison between humming/a/and all four with/e/(b) comparison between HOM/a/and all four with/e/(c) Comparison between tongue trill/a/and all four with/e/(d) Comparison between lip trill/a/and all four with/e/

Figure 4: Comparison between phonation of/a/and/E/PRAAT software (F1-F0 analysis) in all semi-occluded vocal tract exercises (a) comparison between humming/a/and all four with/e/(b) comparison between HOM/a/and all four with/e/(c) Comparison between tongue trill/a/and all four with/e/(d) Comparison between lip trill/a/and all four with/e/