Using the Fletcher-Munson curves of equal loudness, determine the loudness level

Question

Using the Fletcher-Munson curves of equal loudness, determine the loudness level in phons of each of the following tones. Remember that the horizontal axis is marked as a logarithmic scale. The divisions between 100 and the far left represent 90, 80, 70, 60, 50, 40, 30, and 20. The divisions between 100 and 1000 represent 200, 300, 400, 500, 600, 700, 800, and 900 Equal loudness in phons 120 100 80 60 D 40 20 100 1000 10,000 Frequency (Hz) A 95dB tone at a frequency of 50Hz A 100dB tone at a frequency of 1000Hz A 29dB tone at a frequency of 10kHz A 68dB tone at a frequency of 100Hz Submit Answer Tries 0/10

Explanation / Answer

Using the graph we can easily find out the loudness levels.

1. 80

2. 100

3. 20

4. 60

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.