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The acoustics of yer and non-yer vowels [ e ] and [ o ] in

Yers of Slavic languages are vowels that alternate with zero and historically developed from high short lax vowels. In Slovak, both front and back yers were preserved and surface as [e] and [o] respectively. For example, the second [o] in kotol 'cauldron‐Nom‐Sg' is a yer because it disappears with adding a suffix vowel: kotla 'cauldron‐Gen‐Sg'. Compare with a non‐yer [o] in kostol 'church‐Nom‐Sg', kostola 'church‐Gen‐Sg'. Traditional phonological accounts of this difference (e.g. Rubach 1993) assume that yer vowels are underlyingly different from non‐yer vowels and merge with [e] and [o] through a phonological process. Therefore, these accounts predict that yer and non‐yer vowels should be phonetically identical since they enter the phonetic component already merged as [e] or [o]. The results of our acoustic experiments show that yer vowels are phonetically different from non‐yer vowels. The most salient differences were observed in the first formant and duration: yers have lower F1 than non‐yers, and for...