MODULE 1_ LESSON 6 ASSIGNMENT.docx - MODULE 1 LESSON 6 ASSIGNMENT Part 1—Lab 1 To ensure your understanding of the concepts of pitch and loudness you

MODULE 1_ LESSON 6 ASSIGNMENT.docx - MODULE 1 LESSON 6...

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MODULE 1: LESSON 6 ASSIGNMENT Part 1—Lab 1 To ensure your understanding of the concepts of pitch and loudness, you will use the Frequency and Volume Gizmo reached by following the link on page 7 of Lesson 6. Your instructor will look for the following in your work: predictions with explanations (5 marks) data and observations: equal loudness curves and threshold of audibility curves for each person tested or shared curves from three or four classmates (5 marks) discussion incorporating the guiding questions (15 marks) conclusion (5 marks) Answer: Predictions I am doing this experiment with my family members, which include my mother, father, grandmother, and brother. I predict that I will have the lowest threshold of audibility curve, since I am younger in age and I do not have many bad habits that may cause any harm to my ears. My mother, father, and grandmother are all older in age, and likely have weaker hearing than I do. And my brother likes to listen to music with his headphones on full volume, which may have caused harm to his ears. Data and Observations My Equal Loudness Graph and Threshold of Audibility Graph My Grandmother’s Equal Loudness Graph and Threshold of Audibility Graph My Father’s Equal Loudness Graph and
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Threshold of Audibility Graph My Mother’s Equal Loudness Graph and Threshold of Audibility Graph My Brother’s Equal Loudness Graph and Threshold of Audibility Graph Analysis and Discussion 1. Does your personal data, including both the equal loudness curve and the threshold of audibility curve, appear as a straight line? Why or why not? My personal data (the equal loudness curve and the threshold of audibility curve) do not appear as a straight line. This is because the frequencies of the sound waves are different, meaning that they can be heard at different volumes, also meaning that they have similar loudnesses at different volumes (due to the different frequencies). 2. If it is not a straight line, which frequencies were easier to hear and which were more difficult to hear? Frequencies that were not too high and not too low were easiest to hear. For my subjects and I, the most easily heard frequency was either 500Hz or 1000Hz. When the frequencies get too high or too low, we would require a higher volume in order to hear it. 3. Were there any frequencies that you could not hear at all? At first, when I adjusted the 16000Hz bar to 20 decibels, I could not hear anything at all. It was the same with the 30Hz bar. However, once I adjusted these bars to a certain volume, I was able to hear them decently well.
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