ECE 538 - Speech and Hearing Acoustics

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.

Prerequisites

Credit in LING 303 or LING 401 or SHS 301

Subject Area

Biomedical Imaging, Bioengineering, and Acoustics

Description

Fundamentals of acoustics: 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, psychacoustics (pitch, loudness, masking, articulation index), and auditory prostheses (hearing aids, cochlear implants).

Notes

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.

Topics

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

Detailed Description and Outline

Topics:

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.

Texts

Required: P. Haughton, Acoustics for Audiologists,, Academic Press, 2002
Recommended: S. Gelfand and M. Dekker, Hearing, 2004

Last updated

2/13/2013