Brooke Kinde von der Uni Southern California hat die Paralinguistik von Rülpsern untersucht. Paralinguistik ist ein Teilgebiet der Sprachforschung und untersucht die Bedeutung von sprachlichen Signalen ohne Informationsgehalt, also Pausen, Tonhöhe, Verzögerungslaute wie „Äh“ oder „Öh“ und so weiter. Zur Untersuchung der sprachlichen Signifikanz des Rülpsens griff sie auf den größten Rülps-Datensatz der Welt zurück, Dan Harmons multidimensionale Animationsserie Rick & Morty. Zumindest dort ist der Rülps Ausdruck von Dominanzverhalten, wie tausend Generationen von um-die-Wette-rülpsenden Teenagern bestätigen können.
Besonders viel Spaß hatte die Dame mit den Parallelwelten-Ricks aus anderen Dimensionen, die sich gegenseitig vollrülpsen: „Rick will often do these belches when he’s being dismissive of his son-in-law, who he hates, or when he’s trying to assert his own importance. When he’s talking to other mutli-dimensional Ricks it gets completely out of control because they’re all trying to use it as a way to associate it with their identity. Those episodes have like, 30 to 40 belches an episode, so it took quite a bit of time to analyze.“
Pic: „Depiction of a belched word on a waveform and spectrogram using the phonetics software Praat.“
“Paralinguistics have been shown to carry significant meaning when inserted into conversation, and being able to understand the meanings of these less common sounds can lead to a greater understanding of natural language processing,” Kidner said at a press conference. […]
Once Kidner had determined the three primary acoustic identifiers for a burp—at least 144 glottal pulses per second, jitter of at least 4 percent, and shimmer of at least 15 percent compared to normal speech—she was able to apply that criteria to her data set of the many potential burps she had identified from Rick and Morty. She found that most of the 200 or so sounds were not technically burps by this definition but rather other kinds of paralinguistic sounds. And Rick’s mid-speech belches serve to express emotion, or agreement, for instance. They tend to appear in the same places where a speaker might use “um,” “like,” “err,” or similar vocalization. […]
Justin Roiland voices both main characters and has said that the tic started when he burped accidentally while recording voices for an animated short satirizing Back to the Future. When Rick and Morty was in development, he adapted the burping to Rick’s character, although it took a bit of trial and error before the creators realized the optimal BPM (burps per minute) for that first season. Roiland is not a natural-born belcher, however. “I can’t burp on command,” he told Vice in 2015. “I have to sit there with a low-calorie beer and a bottle of water and blow air into my stomach. It’s disgusting.”
Kidner acknowledges that her criteria should not be considered the final word on what constitutes any belch anywhere.