COMD 5070 Final Exam Acoustics of Speech and Hearing questions and answers

COMD 5070 Final Exam Acoustics of Speech and Hearing questions and answers

1. The speech signal is: neither invariant nor linear 2. When a listener simplifies the processing of the speech signal to smooth out superfluous variability, it is called: perceptual normalization 3. One type of quantal perception that occurs as we listen to speech is called- : categorical perception 4. In duplex perception:: syllable components are presented separately, but simultaneously, to each ear 5. In the McGurk effect:: the place and/or manner of articulation is perceived to change 6. Top-down processing in the perception of speech involves: using contextual, linguistic, and cognitive cues 7. Which speech perception theory has been criticized as being so vague that it is more of a philosophy than a theory or model?: motor theory 8. enhance differences between distinct phonemes: perceptual magnets 9. based on similarity of acoustic features of the beginning of words: Cohort theory 10. research with infants has shown that: dominant language exposure gradually decreases discrimination of non-native speech features 11. What is science?: a refinement of everyday thinking 12. What are the 4 features of the scientific method?: empirical, deterministic, predictive, parsimonious 13. A nonlinear increase in frequency as you go from low to high: semitone 14. How many semitones are in one octave?: 12 15. There are more semitones in the octave before the last: 5.9% 16. the frequency with which numbers are stored or written down to represent the analog signal that you're sampling.: Sampling rate 17. How does sampling rate relate to playback quality?: the higher the sampling rate, the better the playback quality 18. The highest frequency the can be reproduced- or the highest sampling rate: Nyquist frequency 19. allows high frequencies through and holds back lower frequencies: high pass filter 20. blocks high frequencies.The best way to avoid aliasing during a digital recording.: low pass filter 21. allows a band of frequencies though and holds back both higher and lower frequencies: band pass filter 22. holds back a band of frequencies and allows both higher and lower frequencies through: band reject filter