frikativerna
Frikativerna are a class of speech sounds in phonetics, specifically consonants, produced by constricting the vocal tract so that the air is forced through a narrow channel. This constriction causes turbulence, which is the characteristic audible noise associated with fricatives. The sound is created by the friction of air passing through the narrow opening.
The production of fricatives involves the interaction of the airstream from the lungs with an articulator,
Common fricatives in many languages include sounds like 'f' (labiodental fricative), 's' (alveolar fricative), 'sh' (postalveolar