Explore BrainMass

Sound - Resonant Frequency and the Missing Fundamental

This content was STOLEN from BrainMass.com - View the original, and get the solution, here!

Problem 6. Assume that the outer ear canal is a cylincrical pipe 3 cm long, closed at one end by the eardum. Calculate the resonant frequency (fundamental, v1) of this pipe. Our hearing should be especially sensitive for frequencies near this resonance.

Problem 7. A "tonic" chord in the musical key of A-major consists of tones with frequencies of 440, 550, and 660 Hz (A, C# and E). When such a chord is played on the piano or by three instruments, why is this not heard as a single tone with a pitch of 110 Hz (the "missing fundamental")?

© BrainMass Inc. brainmass.com September 21, 2018, 5:52 am ad1c9bdddf - https://brainmass.com/physics/resonance/sound-resonant-frequency-missing-fundamental-34425


Solution Preview

Hello and thank you for posting your question to Brainmass!

The solution is attached below in two files. The files are identical in content, only differ in format. The first is in MS Word XP Format, while the other is in Adobe pdf format. Therefore you can choose the format that is most suitable to you.

Check ...

Solution Summary

This solution is provided in 211 words and provided in both .doc and .pdf format. It includes diagrams and discusses the fundamental mode in order to calculate fundamental frequency. Fourier transformer is also discussed in relation to the missing fundamental problem.