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ECE 538 - Speech and Hearing Acoustics

Last offered Fall 2021

Official Description

Explores the electronic and photonic devices based on two-dimensional (2D) materials. More specifically, this course will discuss the synthesis and characterization of a variety of 2D materials. This course will also introduce the design, fabrication and physics of various nanoscale devices, including logic transistors, radio frequency devices, tunneling devices, photodetectors, plasmonic devices, lasers and valleytronic devices. The lab sessions will provide the students hands-on experience on the fabrication and characterization of 2D electronic/photonic devices. The lab sessions will be carried out in the nanofabrication laboratory in ECEB. Course Information: 4 graduate hours. No professional credit. Prerequisite: ECE 340 or equivalent.

Related Faculty

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
TitleSectionCRNTypeHoursTimesDaysLocationInstructor
2D Material Electr & PhotonicsWZ76176PKG4 -    Wenjuan Zhu
2D Material Electr & PhotonicsWZ76176PKG40930 - 1050 T R    Wenjuan Zhu