ЁЯТпPitch
Base of cochlea has ________ frequency sensitivity
Highest
-Shaped like snail shell -Contains vibrating basilar membrane -Converts sound vibrations to nerve signal This is part of?
Inner Ear (cochlea)
Greater _________ tone stimulates more of the Basilar Membrane
Intensity
Pitch is measure by _____ scale
Mel
Transfers acoustic wave to fluid in cochlea This is part of ?
Middle Ear (ear drum & ossicles)
If the Pitch is perceived as 100Hz ... But, note that the stimulus doesn't actually contain a 100Hz frequency Thus, the perceived pitch may not even be among the actual frequencies present in the stimulus This is called the case of the _______ _________
Missing fundamental
Does the stimulus of 300hz, 400hz, 500hz, 600hz, 700hz actually contain a frequency of 100hz? (Yes/no)
No
A complex stimulus, such as the cancellation method, is used to *elicit* the perception of a _____ _____ tone
Non linear
*Perception* of either the difference tone or cubic difference tone is a result of ____ ____ ___________ of the peripheral auditory system
Non linear Distortion
If a listener hears 1120hz = (2 x 1400) - 1680 They are hearing a cubic difference tone
OK
If a listener hears 280hz = 1680-1400 They are hearing the difference tone.
Ok
-Acts as a funnel -Helps with sound localization This is part of ?
Outer ear (pinna and ear canal)
________ of cochlea has lowest frequency of sensitivity
Peak
We describe non linear tones by their levels, _________ and frequencies
Phases
In a stimulus of 300hz, 400hz, 500hz, 600hz, 700hz, the _____ is perceived as 100hz
Pitch
When the pitch is perceived neither as say, 25hz, nor 100 but rather as 104hz , this pitch is referred to as the ?
Pitch shift of the residue
complex periodic stimuli may be perceived as having a fundamental that corresponds to the __________ of the complex wave's period (a.k.a. "periodicity pitch")
Reciprocal
In a Mel scale, subjects are asked to compare a tone against a ______ tone
Refrence
Complex pitch means There is a strong correlation between the pitch of a stimulus and the ______ _______ of its frequencies
Spectral locations
When a complex sound is presented, listeners may hear certain pitches NOT FOUND in the actual _________.
Stimulus
Louder the tone, the lower in pitch it sounds. True or false
True
Non linear tones are not actually there! True or false
True
Pitch is much more qualitative. True or false
True
Basilar Membrane Mechanics mean that *Point of maximal stimulation* is shifted toward the nearer end of BM (and away from area of maximum sensitivity) as intensity goes (up/down)
Up
the frequencies of a complex wave are 425, 525, 625, 725, 825, and 925 Hz are frequencies that are spaced 100Hz ______, not as multiples
Apart
How loud you play a frequency influences what we perceive as the pitch because of the ?
Basilar membrane
Non linear tones are often used to estimate *level and phase* of non linear tones through the ___________ method
Cancellation
When the perceived pitch may not even be present among the actual frequencies, we call this what?
Case of missing fundamental
Even though there is a missing fundamental, our auditory system can still perceive that fundamental with a ______ denominatior such as 100s (like in 300hz, 400hz, 500hz, 600hz).
Common
In regards to non linear tones, listeners may hear the _________ tone which is defined as 2*f1-f2
Cubic difference
In regard to non linear tones, listeners may hear the _________ tone defined as f1 - f2
Difference
If the amplitude and phase are adjusted carefully then the cancellation tone will ____________ the perception of the cubic difference tone
Eliminate
A stimulus can be perceived as having a *pitch*, WHEN THERE IS *INCREASED* ____________ at multiples of the fundamental frequency
Energy
1 millisecond is _______ of a second
1/100
the reference tone is?
1000 hz
1000 mels = 1000 hertz tone at what dB SPL?
40
_____ mels is a tone "half as high in pitch" as the reference tone
500
