Objectives: The Scientific Society of Speech Therapy focuses on professional voice users within the specialized field of speech therapy. This field encompasses various branches, including the recitation of the Holy Quran. Consequently, we initiated research into distinguished and legendary Quran reciters, such as Master Abdulbasit, to gather quantitative evidence of their abilities for training aspirants. This study aims to quantitatively describe the acoustic and prosodic features of the late Abdulbasit during his Quranic recitation.

Method: This cross-sectional study examined 10 Surahs (sections) of the Quran recited by the late Abdulbasit. Voice samples were analyzed using Praat software. Acoustic features such as frequency, intensity, and vowel quality were measured. Additional features included Tahrir (professional articulation), target vowels in Tahrir, types of Tahrirs, changes in intensity and notes during recitation, as well as the pitch contour.

Results: Based on the acoustic analysis, his frequency range is 1.4 octaves (182.4 Hz), with a mean vowel duration of 29.02 ms. The intensity range was 51.5 dB, which was higher for open vowels. Producing a vowel with a constant note occurs in specific places. The pitch contour changes align with the content of the verse using “Bayat”, “Segah”, “Saba”, and “Raast”.

Conclusion: This Qari’s recitation is based on the fundamental principles of phonetics, acoustics, and prosody. His extended pitch contour demonstrates that reciting the Holy Quran, similar to singing, requires a high level of vocal capacity. These patterns can be employed in the scientific teaching of Quran recitation.