Cumulative test

The final test is cumulative, with equal distribution of material from across the early and later weeks of the course. The test will be in class and you will have 1.5hrs to complete it.

Here are some of the concepts that will definitely be on the test:

  1. Relationship between force, mass, and acceleration Lec 1
  2. Voice onset time–what it means, what it reflects in terms of oral cavity volume and pressure, how it works in languages Lec 13
  3. Boyle’s law Lec 1
  4. RMS amplitude Lec 3
  5. Relationship between period and frequency Lec 1
  6. Relationship between frequency and wavelength Lec 1
  7. Glottal spectrum Lec 8
  8. Amplitude rolloff of glottal spectrum
  9. Organization of basilar membrane Lec 10
  10. Resonances of closed and open tubes Lec 5
  11. Acoustic characteristics of voicing Lec 13
  12. Narrow vs. wide-band spectral representation Lec 12
  13. The process of audition Lec 10
  14. Theories of speech perception Lec 16
  15. Categorical perception–what it means, evidence from consonants Lec 13
  16. Acoustic features of consonants Lec 13
  17. Problems of speech perception Lec 11
  18. The process of sound transduction to the inner ear Lec 10
  19. Ear anatomy Lec 10
  20. Theories of phonation/vocal fold oscillation Lec 8
  21. Conversion from absolute intensity to dB Lec 3

Practice problems

Use 330m/s as the speed of sound.

  1. If you wanted to amplify the 400Hz component of a complex periodic that is introduced to an open-open tube, how long (in cm) should the tube be?

  2. If we model the neutral vowel (schwa) as an open-closed tube, what is its length (in cm) if the third resonance is 2.6kHz.

  3. What would the dB reading be for a sound with an absolute intensity of \(100^{-2} W/m^2\)?