ECE 538
Speech and Hearing Acoustics

Displaying course information from Fall 2009.

Section Type Times Days Location Instructor
AB1 LAB 1900 - 2050 M   ARR Beckman Institute  Mark Hasegawa-Johnson
AL1 LEC 1300 - 1550 M   433 Armory  Mark Hasegawa-Johnson
Official Description Acoustics fundamentals: resonance, standing waves, frequency response, Fourier analysis, acoustic impedance, transients, and room response. Source-filter theory of speech production, glottal source, and multi-tube filter models. Auditory and speech physiology, psychoacoustics (pitch, loudness, masking, articulation index), and auditory prostheses (hearing aids, cochlear implants). Course Information: Same as LING 521 and SHS 503. Credit is not given for both ECE 538 and ECE 537. Credit is not given to graduate engineering majors. Prerequisite: One of LING 303, LING 401, SHS 301.
Subject Area Biomedical Imaging, Bioengineering, and Acoustics
Course Prerequisites Credit in LING 303 or LING 401 or SHS 301
Course Directors Mark Allan Hasegawa-Johnson
Detailed Description and Outline


I. Units and Physical Constants
Lab: Ideal Gas Law, Newton’s Law, Manometry; Matlab Introduction
II. Vibrations
1. Free, Damped, Forced Vibrations; Resonance; RMS
Lab: Spring-Mass Resonator, Measurement and Matlab Simulation
2. The Glottis: Mechanical and Signal Processing Models
Lab: Glottal Area Estimation (Matlab)
III. Sound Waves: Wave Equation, Plane Waves, Standing Waves in Pipes Lab: Recording and Analyzing Sound (Matlab); Standing Wave in a Pipe
IV. Sound Sources: Circular Waves, Piston in a Baffle, Room Acoustics
Lab: Image Source Simulation of a Room (Matlab)
V. Non-Sinusoidal Waveforms
1. Fourier Series; Discrete Fourier Transform; Filters
Lab: Spectra and Waveforms of Filtered Tones, Clicks and Hisses (Matlab) 2. Speech Sources, Filters, and Radiation; Manner and Place; IPA
Lab: Spectrogram Reading (Praat)
VI. Measuring Sound: Decibels, SPL, Microphones, Pitch, SL, Loudness
Lab: SPL Meter; Perceptual Loudness Level
VII. Impedance
1. Acoustic Compliance and Mass; Equivalent Circuits; Helmholtz Resonance
Lab: Soda Bottles and other Helmholtz Resonators
2. Impedance of the Ear; Tympanometry; Audiometric Equipment
Lab: Otoscope
3. Multi-Tube Models of the Speech Filter
Lab: VTM-10 Vocal Tract Model
VIII. Dynamic Sound Evolution
1. Evolution of Transients in a Duct or a Room
IX. Physiological Acoustics
1. Anatomy of the Ear
2. Basilar Membrane Transduction
3. Neural Pathways
X. Psychoacoustics
1. Pitch: Basic Physiology; Place-Based, Time-Based, and Duplex Models
Lab: Acoustical Society of America Auditory Illusions CD
2. Loudness: Stimulation Level, Sensation Level; Simultaneous Masking
Lab: Simultaneous Masking (Matlab)
3. Speech: Confusion Matrix; Articulation Index; Synthetic vs. Masked Speech
Lab: Confusion Matrices, Low-Pass and High-Pass Speech
XI. Auditory Prostheses
1. Hearing Aids
2. Cochlear Implants

Same as: SHS 503; LING 521. Credit is not given for both ECE 538 and ECE 537. Credit is not given to graduate engineering majors.

Required: P. Haughton, Acoustics for Audiologists,, Academic Press, 2002
Recommended: S. Gelfand and M. Dekker, Hearing, 2004
Last updated: 2/13/2013