Digital Speech Processing

Explore how the lungs push air through the vocal cords to produce vibration and pitch, while the nonuniform vocal tract shapes sound via mouth and nasal cavities.

Explore the properties of speech, including silence and the distinction between voiced and unvoiced sounds, and examine their pitch, harmonics, and spectral patterns in time and frequency domains.

this lecture examines nasals in time-domain and spectrum, showing how closing the oral track causes cancellations and missing frequencies. it notes most speech content lies below four kilohertz.

Explore the anatomy and function of the ear, from outer to inner, and how we perceive loudness, pitch, and masking, with applications to speech processing.

Model the vocal tract as lossless tubes and a vocal-tract filter, capturing glottal pulse, pitch, and formants. Estimate per-segment parameters from speech for a compact representation.