What happens if you say the sentence forcing air out of your nose but then plugging your nose? What does this test for, and what would the results mean

What happens if you say the sentence forcing air out of your nose but then plugging your nose? What does this test for, and what would the results mean?

2. Take a rubber band. Stretch it across the opening of 1 object. “Pluck” it. How does it sound?

3. Now take a 2nd rubber band and place it across the 2nd object. “Pluck” it. How does it sound?

4. Lastly take a 3rd rubber band and place it across the 3rd object. “Pluck” it. How does it sound?

5. Now compare all 3 by plucking each one. Did the source change across objects? Filter change? Both change?

6. Explain the image under the title of the lab. How does it relate to the source-filter theory of speech production?

7. Draw 10 harmonics of decreasing amplitudes (not precisely) in the frequency domain.

8. Draw a filter also in the frequency domain. Again this is a rough drawing meant to help illustrate a point.

9. Now draw a graph in the frequency domain of the harmonics and the filter on top of it. 

10. Next scratch out or erase the harmonics outside of the filter that the filter cut off. Label the formant frequencies.

11. Explain how this relates to the source-filter theory of speech production.