Tag: articulation index

November 20, 2025 / Mohammed looti

SPEECH INTELLIGIBILITY

Introduction and Definition of Speech Intelligibility Speech intelligibility fundamentally represents the degree to which a listener can accurately perceive and understand the acoustic message generated by a speaker. It is a critical metric in communication sciences, audiology, and experimental psychology, serving as the ultimate functional measure of speech production efficacy. High intelligibility ensures that the […]

November 11, 2025 / Mohammed looti

ARTICULATION INDEX

Introduction and Definitional Framework The Articulation Index, frequently abbreviated as AI, is a critical metric utilized in acoustics, psychoacoustics, and communications engineering to quantitatively measure the potential intelligibility of speech within a specific operational environment. Fundamentally, the AI reflects the degree of separation between the effective speech signal and the ambient noise or masking energy […]