Fig. 3: Sound-sentiment correlation heatmaps.
From: Listening to the verses: unveiling phonetic contrasts in Li Bai and Du Fu’s poetry
It presents the statistical analysis results showing the correlation of sound features with position or negative sentiment. a Voicing and aspiration: Voiceless unaspirated → positive; the others → negative. b Place of articulation: Front tooth and throat → positive; lip → negative. c Grade: Second → positive; fourth → negative. d Articulation: Unrounded → positive; rounded → negative. e Nucleus: ɛ, æ, a, o, and ɑ → positive; i, ə, and u → negative. f Coda: yang → positive; yin → negative. g Four tones: Rising → positive; departing → negative.
