Rising High Rising Terminals (HRTs) in Gen Z Speech: A Cross-Cultural Acoustic Analysis of New York City and Melbourne

 High Rising Terminals (HRTs)—rising intonation on declarative statements—have been stereotyped as young, female, and uncertain. However, this study tests a different hypothesis: HRTs among Generation Z (ages 18–24) function as a discourse-cohesive marker, not a question or hesitation signal. We analyzed 12 hours of spontaneous, peer-directed speech from 60 Gen Z speakers (stratified by gender, ethnicity, and socioeconomic status) in New York City (NYC) and Melbourne, Australia. Acoustic analysis (normalized pitch slope) was combined with pragmatic annotation of turn boundaries, epistemic stance, and narrative structure. Results show HRTs occur at the end of multi-clause “story units” before a brief pause, signaling “more to come” or “you can respond now.” Crucially, no significant gender difference emerged (contra prior work). Melbourne speakers used HRTs at a 2.3x higher rate than NYC speakers, but with identical pragmatic functions. Rates were highest among speakers of East Asian and Latinx backgrounds in both cities, suggesting a language contact influence (tonal or topic-prominent L1 transfer). We argue HRTs are a grammaticizing discourse particle, not an index of insecurity.

Research Notes:

• Methodology: Sociolinguistic interview and peer dyad recordings; PRAAT acoustic analysis; logistic regression for social factors; comparison to legacy (1990s-2000s) corpora.

• Key Finding: HRT has undergone “de-gendering” and is becoming a standard turn-management tool for Gen Z, albeit with community-specific frequencies.

• Theoretical Implication: Challenges the “uptalk as uncertainty” paradigm; supports a usage-based model of intonational change.