“…Prosodic features, also known as super segment features, mainly refer to the speed, rhythm and intonation formed by dynamic patterns of related parameters such as pitch, intensity and duration. This paper adopts speech speed evaluation on speech duration, rhythm evaluation on short-term energy and pairwise variation index (Distinct Pairwise Variability Index, d PV), and evaluation and feedback guidance on English pronunciation quality on pitch evaluation of fundamental frequency (Droua-Hamdani, 2019). ...…”