The function of the glottis is to make several voicing sounds between the vocal folds when they vibrate. Voiceless consonants include the English h, f, s, p, t and k sounds. The glottis functions... The function of the glottis is to make several voicing sounds between the vocal folds when they vibrate. Voiceless consonants include the English h, f, s, p, t and k sounds.
Misophonia sufferers find these sounds more than just mildly annoying. Beginning in late childhood or early adolescence, the condition causes extreme anger, anxiety and terror when a trigger sound, such as chewing gum, is heard.
Misophonia: When Annoying Noises Send You Into A Rage. Loud chewing by a friend, coworker or that random stranger next to you in line at the post office can drive even the most level-headed person up a wall. But for some people, the noise becomes entirely unbearable, spurring an extreme fight-or-flight response.