10 Questions
How do temporal and place theories work together to explain our ability to perceive sounds with frequencies up to 4000 Hz?
Pitch of sounds below 4000 Hz could be encoded by the combination of the place and firing rate of stimulated hair cells.
What is the main function of the pinna in the outer ear?
The pinna serves as a frequency-dependent directional receiver.
Where do standing waves occur in the outer ear?
Standing waves can happen in the concha and external ear canal.
What is the significance of the bent ear canal in the outer ear?
The ear canal focuses sound waves to project onto the eardrum.
What frequency range does the combination of the ear canal and concha amplify strongly?
The combination of the ear canal and concha has a strong amplification in the 1k to 7k Hz range.
What is the reason why sound on one side of the head sounds louder for the near ear than the far ear?
Spreading loss and head diffraction effect
What type of filter is the pina in terms of sound frequencies?
Band reject notch filter
How does the ear determine the direction of sound based on interaural differences?
If the sound is significantly quieter in one ear over the other, it is likely high frequency.
What does HRTF stand for and how is it measured?
Head related transfer function; measured by broadband clicks and probe microphone.
How can pressure gain (amplification) in the canal be calculated in the absence of the head for HRTF?
Pressure gain can be calculated from the measured HR impulse response.
Explore how both temporal and place theories are utilized to explain our ability to perceive sound pitch, especially with frequencies up to 4000 Hz. Learn about the mechanisms of hair cells in encoding different sound frequencies.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
