Why most automated public announcements use female voices
Public transit systems and AI assistants predominantly use female voices because studies show they offer higher clarity and foster a greater sense of trust among listeners.
Automated announcements favor female voices due to their higher fundamental frequencies, typically ranging from 200 to 250 Hertz. Research indicates that these frequencies result in 20% to 30% higher comprehension rates compared to male voices. Additionally, listeners often perceive the softer timbre as 15% less aggressive, which is vital for maintaining calm in crowded environments.
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