Study Questions: Loudness Perception and Critical Bands

1. What is an audiogram and how is it measured? Sketch an audiogram for a young human. Make sure to label the axes.

2. Discuss the physical properties of sound that affect the perception of loudness.

3. What psychophysical task is used to relate the perceived loudness of pure tones of various frequencies and intensities?
What do the results of those experiments say about the relation between perceived loudness and physical intensity?

4. Briefly describe the critical band and the evidence which supports such a concept.

5. What is loudness constancy?

6. What are the various ways by which loudness might be encoded in the brain?