Table 1.

List of phonetic parameters examined in each of the 17 language samples.

Total sample duration in seconds Number of syllables in sample Number of segments in sample Speech rate (syllables/second) Number of vocalic portions Duration of vocalic portions Number of consonantal portions Duration of consonantal portions Percentage of sample duration devoted to vocalic portions Percentage of sample duration devoted to consonantal portions Standard deviation of vocalic portion durations Standard deviation of consonantal portion durations F0 mean F0 minimum F0 maximum F0 range (F0 maximum – F0 minimum) Maximum number of consonants in a row Presence/absence of dorsal consonants aside from /g, k/, or /ŋ/ (“marked back segments”) Presence/absence of front rounded vowels (“marked front vowel rounding”) Presence/absence of other “notable/non-English” phonetic features (e.g. geminate consonants, bilabial fricatives, lexical tone)