Topic-064: Rules for English Consonant Allophones (ECA): Explanation 1. An alveolar stop becomes a voiced tap when it occurs between two vowels the second of which is unstressed (winter – winner) 2. An alveolar consonant becomes dental before dental consonant (eighth, tenth, wealth). 3. Alveolar stops are reduced or omitted when between two consonants (most pIpl/ - mos pIpl/). 4. A homorganic voiceless stop may occur after a nasal before a voiceless fricative followed by an unstressed vowel in the same word (e.g., hearing tin in both agency and grievances). 5. A consonant is shortened when it is before an identical consonant (e.g., kin cap and kept). 6. Velar stops become more frontal before more frontal vowels. (e.g., clap and talc). 7. The lateral l is velarized after a vowel or before a consonant at the end of a word.
