International Licensing Examination (ILE) Practice Test

What is the resonant frequency of the concha?

1. 2000 to 3000 Hz

2. 4000 to 5000 Hz

3. 6000 to 7000 Hz

4. 8000 to 9000 Hz

The correct answer is: 4000 to 5000 Hz

The resonant frequency of the concha, which is part of the outer ear anatomy, is typically around 4000 to 5000 Hz. This frequency range is significant because the concha plays a role in collecting sound waves and enhancing certain frequencies, particularly those important for human speech and communication. The selection of this frequency range is grounded in acoustic principles related to how the human ear processes sound. The concha and the ear canal work together to amplify sound waves, and the enhancement of frequencies in this range contributes to the clarity of sounds, especially the consonants in speech. Understanding the resonant frequency of the concha is essential for audiologists and sound engineers, as it helps them comprehend how sound is naturally boosted in the ear, which can aid in various applications like hearing aid design and sound propagation analysis.