S-Science 1

  1. speech acoustics
    • -how sounds relate to articulators
    • -how higher level info is encoded in speech sounds
  2. speech perception
    • -the ear processes speech
    • -the brain extracts info about phonemes and suprasegmentals from speech
  3. Voice Disorders (treatment)
    stroboscopic or acoustic analysis of disordered voice; documenting effects of therapy
  4. neurogenic speech disorders (treatment)
    efects of motor speech disorders on production
  5. craniofacial speech disorders (treatment)
    effects of artificial palate on speech production
  6. hearing impairment (treatment)
    speech perception and production by hearing impaired; effects of hearing aids
  7. accent reduction (treatment)
    training speech sound produciton
  8. Alexander Graham Bell
    • -system of visual representation of articulation of speech sounds
    • -developed audiometer for testing hearing (and telephone)
  9. Ralph Potter
    • Sound Spectrograph
    • -machine for graphical representation of frequencies in speech
    • -originally hoped to be a way of making speech visible for the deaf
  10. the voder/vocoder
    • Homer W Dudley
    • -purpose: reduce information needed to transmit speech
    • -buzz for voice, different bands for other frequencies
    • -operated like a piano w/ pedals and keys
  11. The pattern Playback
    • Franklin Cooper
    • -reading machine for blind
    • -used in study of speech perception
    • -led to development of more sophisticated synthetic speech
  12. Computerized automatic text to speech synthesis
    • Dennis Klatt (1980's)
    • -reading for blind, aid for handicapped
    • -augmentative and alternative communicaiton devices
  13. sound
    • displacement of air molecules that could produce an auditory response
    • -perceptual term
    • -analyze using acoustics (amplitude, frequency, phase)
  14. amplitude
    plotted along y-axis in pressure (dynes-used for speech) or intensity (watts)
  15. time
    plotted along x-axis in seconds or milliseconds
  16. Periodic sound wave
    waves repeat over and over in exactly the same pattern
  17. Quasi-periodic sound waves
    • waves are those that have a generally repeating pattern but has some small differences on each cycle
    • -tuning fork, a solid sound
  18. aperiodic sound waves
    • waves have NO repeating pattern
    • -noise, fricatives
Card Set
S-Science 1
S-Science 1