[blank_start]Frequency[blank_end]: how many waves in a second? Corresponds to [blank_start]pitch[blank_end].
[blank_start]Amplitude[blank_end]: how high is the wave? Corresponds to [blank_start]loudness[blank_end].
[blank_start]Phase[blank_end]: how far through the wave are we? Corresponds to [blank_start]tibre[blank_end].
Answer
Frequency
pitch
Amplitude
loudness
Phase
tibre
Question 2
Question
In complex sounds, the component with the [blank_start]lowest[blank_end] frequency is called the 'fundamental'.
Answer
lowest
Question 3
Question
If a filter is linear it follows the rules:
Answer
Output of filter doesn't contain any frequency which was not present in input
Output of filter is able to be distorted, so long as the fundamental stays constant
If amplitude of input is changed by some factor, the output must also be changed by the same factor
Output of (A+B+C) == (A) + (B) + (C)
Question 4
Question
Select the reasons out ear could be considered a Fourier Analyser.
Answer
Auditory filters separate frequencies into different channels
How many hair cells protrude from the basilar membrane?
Answer
1000
2500
3500
5000
Question 7
Question
Parts of the wave where air pressure is increased are called [blank_start]compressions[blank_end]; parts where the pressure is decreased are called [blank_start]rarefactions[blank_end].
Answer
compressions
rarefactions
rarefactions
compressions
Question 8
Question
The inner ear contains mechanoreceptors for:
Answer
Hearing
Understanding
Balance
Positioning
Pain receptors
Question 9
Question
The chambers in the cochlea are the:
Answer
Scala vestibuli
Tympanic membrane
Basilar Membrane
Scala tympani
Cochlear partition
Question 10
Question
Phase locking is important for:
Answer
Sound localisation
Pitch perception for low frequencies
Pitch perception for high frequencies
Balance
Question 11
Question
An auditory nerve fibres response to a tone during the presentation of a second tone is
Answer
To double the intensity
Suppression
Double the amplitude but not frequency
Double the frequency but not amplitude
Question 12
Question
The [blank_start]Superior[blank_end] Olive contains binaural neurons that provide information about the location of sound sources.