Acoustic Analysis

The computational examination of sound signals to extract measurable properties such as duration, fundamental frequency (pitch), intensity, spectral characteristics, and formant structure. In accessibility and clinical contexts, acoustic analysis is used to objectively assess speech and vocalization patterns — for example, analyzing infant babbling for early identification of communication delays, evaluating dysarthric speech for AAC system development, or measuring voice quality in people with laryngeal conditions. Computer-based acoustic analysis provides more reliable and reproducible measurements than perceptual judgments by human listeners, though it typically requires careful preprocessing to isolate target sounds from background noise.