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ECE 537 Schedule (Fall 2013)

L W D Date Lecture and Assignment
Part I: Acoustics/VT modeling/Signal processing (NN Lectures)
1 35 M 8/26 Introductions.
Lecture: Overview: Speech production, Acoustics, Psychophysics, neural and information processing.
Entropy: Its meaning, definition and the intuition behind it;
Read: Flanagan, Chapt. 1: (pdf); Orig. Book: (djvu)
2 W 8/28 Lecture: Mechanisms of Speech production: Sounds of speech: Vowels and consonants;
Read: Chapter 2 (pdf); Chapter 2 of Orig. Book (djvu);
HW1: Basic Acoustics (due Wed 9/4/11) (HW01.pdf, HW01-sol.pdf)
3 F 8/30 Lecture: Intensity, speech power; sound level; dB, dB-SPL, Pressure, volume velocity, impedance. Vowels, Formants; Helmholtz resonator
Read: Chapter 3 (pdf)
- 36 M 9/2 Labor Day Holiday -- No class
4 W 9/4 Lecture: Basic acoustics and the ABCD-Transmission (Chain) matrix; Acoustic Transmission lines; Matrix formulations (pdf)
Read: Flanagan, Ch. 2.2, 3.1-3.2 (pdf)
HW1 due
HW2: TL and reflectance (due Wed 9/11/11) (pdf, sol-pdf)
5 2 F 9/6 Lecture: Solution of 1-D transmission line equation: Lip radiation impedance, The Helmholtz resonator
Read: Lecture on Horns (2013 pdf, 2011 pdf)
6 37 M 9/9 Lecture:d'Alembert solutions for 1-D and 3-D transmission lines; Sound propagation in tubes in speech production; Introduction to reflectance;
Read:: Wave model of the Cat eardrum, Parent and Allen 2007 (djvu, pdf), 2010 Human ear canal djvu, ;
Review: Matlab filter design, bilinear Z, FIR, IIR
7 W 9/11 Lecture: Transmission Lines with complex loads and the Propagated Reflectance;
Text: Flanagan, Ch. VI (Sect. 6.262, pp 272-276);
Readings: Bilbao PhD Thesis p. 1-15 (djvu, pdf) '
HW2 due; Ask if you want more time?
HW3:' TLs with complex terminations (due in two weeks on Wed 9/25); Simulation of the middle ear:'' pdf
8 F 9/13 Lecture:Impedance and reflectance at a tube junction (Karal correction djvu), and half-sphere (the mouth)
Text:: Ch. 3, Sec. 3.3, pages 136-152
9 38 M 9/16 Lecture: 2-port networks;
Read:: Bilabo Thesis (see page 14) (djvu,pdf); Text Chap. 3, sect. 3.8.1 pages 31-34 radiation impedance load;
Review: Rosowski, Carney and Peak (1988) on the cat middle ear djvu; Background material: Guinan and Peak djvu; Lynch et al. 1982 djvu
10 W 9/18 Lecture: cont. 2-port and the 3-port nasal tract; Network Postulates djvu;
Conversion tables for 2-ports (djvu,pdf)
Optional Read: Thevenin (djvu), Norton (djvu)
Read: Peterson and Barney (1952) djvu and Peterson (1952) djvu
11 F 9/20 Lecture: Horn Radiation Impedance; Karal Correction; Bernoulli's equation Wiki
Text: Flanagan pp 41-53; Read: vanDen Berg (1957) djvu
12 39 M 9/23 Lecture: 'Signal processing review:' Fourier Series, Fourier Transform, Laplace Transform, ZT, DTFT, DFT, FFT
13 W 9/25 Lecture: Cepstral analysis;
HW3 Due (sol-pdf; Matlab Solution: txline.m, gamma.m)
Vocal-Tract Simulation: Due in 16 days (pdf, files)
14 F 9/27 Lecture: History of acoustics:
BC: Pythagoras; Aristotle;
17C: Mersenne, Marin; Galilei, Galileo; Hooke, Robert; Boyle, Robert; Newton, Sir Issac;
18C: Bernoulli, Daniel; Euler; Lagrange; d'Alembert;
19C: Gauss; Laplace; Fourier; Helmholtz; Heaviside; Strutt, William; Rayleigh, Lord; Bell, AG
20C: Campbell, George; Hilbert, David; Noether, Emmy; Fletcher, Harvey; Nyquist, Harry; Bode, Henrik; Dudley, Homer; Shannon, Claude; Flanagan, James;
15 40 M 9/30 Lecture: Review HW1, HW2, HW3;
The glottal oscillator & Bernoulli's (Eq.,Derivation)
Read:: Flanagan Sec. 3.74 pages 69-72
16 W 10/2 Lecture: Linear prediction of speech;
Read: Flanagan Sec. 8.112, pp 372-376; Sec. 8.13, pp 390-395; Atal and Hanauer (1971) pdf,djvu
17 F 10/4 Lecture: 'STFT window methods;' Inverse STFT; STFT for speech processing with analysis/synthesis; filtering; Allen & Rabiner (1977) pdf,djvu)
Reading spectrograms
Read:: Flanagan Chap. 8, pp 361-363;
Begin writing your Final exam: Part I;
18 42 M 10/7 No class due to Exam I Exam I: date and time
19 W 10/9 Lecture: Room acoustics; point source; 1, 2 and 6 wall Image method; Wall reflection coef. for finite impedance walls Di and Gilbert (1993) djvu
- F 10/11

In class Review: Acoustics, Modeling the VT, STFT, Signal processing of speech;
HW4 due

20 41 M 10/14 Lecture: Music and audio compression coding (MPEG)
Read: Music coding methods pdf
Review of HW3, HW4
Exam I: Date: Monday Oct 14, 2013; Time: 7PM Place: 241EL
Part II: Psychoacoustics/Information Processing (NN Lectures)
21 W 10/16 Lecture: Psychoacoustics I: Internal noise model of the JND Riesz pure-tone intensity JND (1928)
Masking: Weber's and Fechner's Law; Intensity JND and the near-miss;
'Psychoacoustics II:' Introduction to loudness, Steven's Law;
Loudness Lecture notes (Allen): pdf
Read:: Flanagan Chapter 4 (pdf, original pdf, djvu), Allen Review (pages 20-30) pdf, Fletcher and Munson (1933) (pp 82-94) pdf
HW5 (ver 1.04): LPC (Due 1 week 10/24), Speech samples
22 F 10/18 Lecture: Cochlear Physiology I: Middle ear and inner ear (Cochlear) anatomy, basilar membrane, 1D Models, Hair cells, Nonlinear basilar membrane;
Frequency JND, semitone, Internal noise and Masking; relation between the intensity and frequency JND (Cochlear frequency response and the slope of the tuning curve);
Read:: Review of Cochlear Modeling: Part II (pp 19-28):pdf; page 151(166)-155(170) of Fletcher's 1929 Book djvu
MIT/HST-725: The auditory system pdf
23 43 M 10/21 Lecture: Cochlear Physiology II: traveling waves, neural tuning curves, critical bands, hair cells, neural masking, Upward spread of masking; Forward masking;
Auditory Pathway I: Neural Tuning
Read:: Review of Cochlear Modeling (pp 1-19) (pdf)
24 W 10/23 Lecture: Cochlear Physiology III: Micromechanics, OHC, IHC Lecture Notes (pdf): Modeling the Cochlea and Organ of Corti, and
Read:: Wegel and Lane (1924), Part II (djvu)
25 F 10/25 Lecture: Psychoacoustics III: Relations between Psychophysics and the cochlea; Greenwood's place-map function
Read:: Review of Cochlear Modeling (pp 1-19) (pdf), Part I; Fletcher and Munson (1933) (pp 82-94) (djvu)
26 44 M 10/28 Lecture: Cochlear Critical bands
Read::'Harvey Fletcher's role ...' (all but the section on the Articulation Index (AI)) djvu)
HW6: Radial waves/STFT/OLA/Speech coding (Due Mon 11/18)(HW6,speech files)
27 W 10/30 Lecture: Cochlear Physiology IV: The nonlinear Cochlea; The upward spread of masking (USM) and 2-tone suppression (2TS)
Supplement: The Auditory Nerve (pdf)
Read:: Features in speech Allen and Li, (2010)(pdf)
28 F 11/1 David Moore talk, 100 Gregory Hall (rather than Lecture: The central auditory system; Neural signal and the Auditory Pathway)
29 M 11/4 Lecture: Prof. Wickesberg, Auditory Pathway (AN+CN), Part I: (2008 ppt, 2006 Part I: djvu)
30 45 W 11/6 Lecture: Prof. Wickesberg, Auditory Pathway (AN+CN): Part II: (2008: djvu, 2013: Powerpoint) zip)
31 F 11/8 Lecture: Information theory I: Information, Entropy, Relative Entropy; Channel Capacity
Read:: pp 1-10 Shannon (1948) (djvu, pdf I+pdf II)
32 46 M 11/11 Lecture: Information theory II: Morse code example Shannon Channel
Read:: Shannon (1950) (djvu, pdf)
33 W 11/13 Lecture: Information theory III:; Entropy, Relative Entropy, Markov models, State diagram;
34 F 11/15 Lecture: EM algorithm: Example: Speech and noise separation
Compressed sensing Demo
Read:: French and Steinberg (1947) (djvu); Good-Turing djvu
Discussion of the EM alg. with examples
35 47 M 11/18 Lecture: Articulation Index/Speech Transmission Index/Speech Intelligibility Index; Support material: RV Shannon et al (1995) djvu, Smith et al (2002) djvu
HW7: Information processing (Due Thur 12/11); (pdf, files)
36 W 11/20 Lecture: STI/SII
Read:: Steeneken & Houtgast (1980) Speech Transmission Index (djvu) and Houtgast (1989) Modulation detection (djvu)
- R 11/22 Lecture: Human speech recognition (HSR), Articulation Index (AI), average score: Pc(AI)=1-echanceeminAI, The confusion matrix (CM), maximum entropy syllable error models, etc.; Allen notes (djvu)
Read:: Continue with French and Steinberg (1947)djvu; Miller Nicely (1955) djvu; Miller Nicely confusions as a function of the articulation index; entropy, grouping and chance djvu
DUE: Preliminary version of your Final Exam for review
- 48 - - Thanksgiving Holiday (11/23-12/1)
Part III: Human Speech Recognition (NN Lectures)
37 49 M 12/2 Exam II: (NO CLASS) Psychoacoustics, Physiology, Speech, LPC, Tubes, AI, Historical items;Place: EL-241; Time: 7-9 PM
Assignment: Work on Final exam
38 W 12/4 Lecture: Effects of language and semantic context Miller (1962), Boothroyd (1988),
Allen Notes: Events and the AI(djvu)
Read: Miller, Heisen and Lichten (1951) (djvu)
39 F 12/6 Lecture: Language context models, Boothroyd; Bronkhorst93
40 50 M 12/9 Lecture: Language context models, cont., Bronkhorst93
Read: W. Li Random texts exhibit Zipf's-Law djvu
41 W 12/11 HW7 due;
Course Review; Final Exam Prep;
- R 12/12 Reading Day
- 51 M 12/13-20 [Final Due Dec 13-20 TBD]


The final is a 15-25 page paper, written in the style and format (but single column) of a journal paper, that discusses everything that you have learned in this course. Writing style, spelling, figures, labels of figures, are all part of the grade.

Allen's Grading of the final

The final is graded based on a list of all the topics that are covered. If there is a paragraph that discusses each topic on my list, then you get at least 1 point, and if the discussion covers the topic effectively, you can get up to 5 points. There are at least 20 topics on the list. When you get to 100 points, you get an A+ on the exam. I expect that you draw on the homework as a starting point. Don't just dump the homework into the exam without modification, that wont get you points. Don't just dump a large number of unexplained figures (that you got from someone else for example) and expect to get points. I need words around each figure. I am looking for insightful comments that link the material together.

Your comments on the relevance of each of the topics I covered in this course, homework problems, exams, etc., are welcome. No points will be taken off, nor given, for strong opinions on my teaching style, or lack thereof, organization, or lack thereof, etc. Please put all such comments in a discussion section at the end of the paper, isolated from the rest of the material.

course description

- - - Not proofed beyond here

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