Abstract

Difficulty in producing natural English sounds by Indonesian learners of English is due to the divergence in manner of producing the sounds in English and Indonesia and resulted in unnatural pronunciation of the English sounds. This research addresses the issue of English sound production with special attention to segmental sounds produced by Indonesian learners of English. Descriptive method was used to explain the data collected from picture description task and interview. The study was divided into two: 1) an in-depth phonetic analysis of the students’ sounds production in terms of place of articulation, manner of articulation and distinctive features for the production of English consonant sounds, and openness of mouth, tongue elevation, position of tongue elevation, lips’ shapes, and length of vocalization for the production of the English vowel sounds and 2) detailed explanation about the contributory factors to the production of segmental sounds quality in terms of unnatural performance and unnatural competence. The findings of this research denoted that the most to least frequent problematic sounds produced by the student occur in [ð] voiced dental fricative (38.15%) for consonant sound and [ӕ] Lax Low Front Unrounded (38.46%) for vowel sound. The most potential influential factors to the problematic English sounds production are the learners’ mother language interference and the less practice of speaking English. Both are indicators of unnatural performance.