In Standard Slovenian there are long and short vowels. The former are stressed only and the latter may be stressed or unstressed. In Standard Slovenian the sonorants do not affect the voicing of the non-sonorant consonants standing in front of them. The non-sonorants undergo changes of voice according to their position. Voiced obstruents can stand only before vowels, sonorants and voiced obstruents in the same word.
Final obstruents are obligatorily voiceless.
Prepositions, however, are treated as enclitics, belonging phonetically with the following word, and may therefore end with a voiced obstruent. In Standard Slovenian, the accent is possible on every syllable of a word. The position of the accent in some cases, however, depends on certain rules. In Slovenian, there are two types of accentuation defined as standard. Depending on regional background, speakers use one or the other, but not both.