Optimizing English pronunciation teaching through motion analysis and intelligent speech feedback systems

This study investigates the effectiveness of integrating Motion Analysis (MA) and Intelligent Speech Feedback Systems (ISFS) to enhance English Pronunciation (EP) accuracy among Chinese learners. Leveraging the OptiTrack Prime 13 Motion Capture System (MCS) and SpeechAce Pronunciation API, the study aims to address challenges non-native English speakers face, particularly in producing accurate articulatory movements and reducing Pronunciation Errors. Forty-three participants were divided into Experimental Groups (EG) and Control Groups (CG), with the EG receiving real-time feedback on articulation and phoneme accuracy. Key metrics, including Pronunciation Accuracy Score (PAS), Articulatory Movement Score (AMS), and Pronunciation Error Rate (PER), were measured alongside engagement indicators, such as session duration and self-corrections. The results show that the EG experienced a significant improvement in pronunciation accuracy, with a 31.2% increase in PAS and a 57.1% reduction in PER. Enhanced AMS scores also indicated refined articulatory precision across various articulatory points, including lip rounding and tongue positioning. Engagement metrics demonstrated higher consistency and task completion rates in the EG, suggesting increased motivation and sustained participation due to the real-time feedback provided. These findings suggest that combining MA with ISFS can provide targeted, adaptive support, enabling learners to make precise corrections and accelerate their progress in achieving native-like pronunciation. This study contributes valuable insights into the potential of advanced feedback-driven approaches in language learning and pronunciation training.