Effects of training and using an audio-tactile sensory substitution device on speech-in-noise understanding.

In Group 2 the SRT scores in the ATm an ATnm tests were statistically significantly different [t(19) = 5.0, p < 0.001, effect size = 1.497, power = 0.99], while the difference between the scores in the ATm and the A tests [t(19) = 2.54, p = 0.02, effect size = 0.887, power = 0.98), as well as between A and ATnm showed a trend for significance [t(19) = 2.4, p = 0.028, effect size = 0.737, power = 0.94).

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