A speech recognition system misinterprets 'dust' as 'gust'. Which mechanism explains why this substitution occurs in acoustic phonetics?

💡 Explanation

The speech recognition system confuses the words because similar consonant burst frequencies in 'd' and 'g' lead to acoustic overlap and misclassification by the system. Therefore, burst frequency is the discriminating feature, rather than vowel formants or aspiration details that differ less systematically between these sounds.

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