http://www.med.uwo.ca/physiology/courses/sensesweb/
 

KEYTERMS
Chapter eleven:  audibility functions, conduction loss, sensory/neural loss, noise exposure and hearing loss, age and hearing loss, drugs and hearing loss; loudness, equal loudnes contours; masking, broadband noise, bandpass noise, center frequency, critical band (!); pitch, fundamental frequency, missing fundamental, harmonics, melody contour, sound localization, interaural intensity difference, interaural time difference; perception of speech sounds, phoneme, spectrogram.

STUDY QUESTIONS:

• Can you draw an AF? What is on the two axes?
• Can you draw the AF of a hearing imparied person?
• What is the bandwidth of white noise? (How would it sound?)
• Can you draw the spectra of bandpass noises with different center frequencies?
• Assume that the center frequency of a narrow-band  noise is the same as that of the signal. The bandwidth of the noise is then increased. Is threshold elevation in the masking experiment going to follow the increased noise energy levels? (As you increase the bandwidth, you are also increasing the energy of the noise.)
• What is pitch?

• The perceptual dimension in audition that corresponds to the physical dimension of frequency is: (a) loudness (b) intensity (c) harmonics (d) pitch.