1.      Is amplitude modulation linear or non‐linear?:

a.       What are the two types of non‐linear distortion products?

a.       Under what circumstances do you get each one

2.      With sound, what is propagating through a medium?:   (I don’t know if the answer is longitudinal wave)

a.       In what form?

3.      What are the effects of acoustic travel?

4.      What is attenuation?

a.       If you know the intensity at a certain distance from the source…

                                               i.      What is the distance of a second measurement, based on its intensity?

                                             ii.      What is the intensity measurement going to be at a specific nearer or farther distance?

                                           iii.      Do these happen in an anechoic space?

                                           iv.      Do they happen in an echoic space?

2.      What is absorption?: Portion of sound absorbed into a surface.

a.       When does absorption happen?: (When a wave hits a surface and is reflected?)

5.      What is reflection? Sound bouncing off an object/medium

a.       When does reflection happens?

6.      Know the speech and hearing chain

1. What is source-‐‐filter theory?
2. How are voiced sounds generated?
3. How are unvoiced sounds generated?
4. What are formants?: (Formant = resonance in vocal tract?)

                                                              i.      Where do they come from?

5. What is the duplex theory of sound localization?

                                                              i.      What is an interaural time difference?: (When higher freq. sound is dampened by the time it gets to other ear?)

1.      At what frequencies is it useful?: (Above 2000Hz?)

                                                            ii.      What is an interaural level difference?

1.      At what frequencies is it useful?

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