Breath control strategies for English coherent pronunciation based on the biomechanics of respiratory muscles
Abstract
This paper aims to solve the problem of insufficient breath and lack of coordination between breathing and pronunciation in English learners’ coherent pronunciation. By analyzing the biomechanical characteristics of respiratory muscles, scientific breath control strategies are designed to optimize airflow management and improve speech fluency and expression efficiency. English learners of different language levels were recruited and divided into elementary, intermediate and advanced groups. Speech tasks including slow pronunciation, fast pronunciation and long sentence pronunciation were designed. Electromyography was used to record the activity characteristics of respiratory muscles, airflow meter was used to measure airflow output data, and high-sensitivity microphone combined with Praat software was used to extract speech features including speaking rate and pause frequency. This paper studies tasks such as slow pronunciation, fast pronunciation and long sentence pronunciation, clarifies the degree of involvement of key muscles such as the diaphragm, and designs targeted phased breath control strategies, including abdominal breathing training, long sentence reading and coherent reading simulation, and the introduction of speech tasks. The results show that the breath control strategy proposed in this paper significantly improves learners’ speech fluency, syllable and phonetic pronunciation accuracy under all task conditions. At a speaking speed of 180 words/minute, the correct pronunciation rate of phonetic symbols and syllables in this strategy intervention was 80%, and the correct pronunciation rate of syllables was 83%, and the breath maintenance rate and pause frequency were improved. The optimization strategy based on respiratory biomechanics can effectively improve language learners’ breath management ability and coherent pronunciation level, and provide an innovative theoretical basis and practical path for language learning and voice training.
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