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Hearing and Speech Processing > Lecture 17 > Flashcards

Lecture 17 Flashcards

1
Q

How does the inner ear work?

A

WASEWQE

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2
Q

What is the idea of machine hearing?

A

sadasdasd

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3
Q

What is the fluid dynamics of the inner ear?

A

wqeqwe

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4
Q

What is the general cochlear?

A

weqwea

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5
Q

What is the general basilar membrane?

A

WEQEAD

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6
Q

What is the response of the basilar membrane to a short force at a particular time?

A

eweqsa

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7
Q

What is a good way to approximate this shape to the response of the basilar membrane? What is the equation? What are the different components?

A

qweqweds

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8
Q

What force do you have with a sound? What is the equation?

A

wewqasd

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9
Q

What does this evoke?

A

qwedasew

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10
Q

What is the evoked amplitude?

A

qweasdas

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11
Q

What is the ratio of the evoked amplitude to the provider force? What is it called?

A

wqadads

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12
Q

What is the Transmission coefficient? What is the equation?

A

ewqsdads

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13
Q

What is happening when the transmission coefficient is large? What if it is small?

A

wqadsad

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14
Q

What is the gammatone filter? What does the transmission coefficient look like for the gammatone filter at different frequencies?

A

weqadasd

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15
Q

How many gammatone filters in a cochlear?

A

eqwasd

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16
Q

What is a simple model for the cochlear? Draw it out?

A

ewqadsd

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17
Q

How does the bandwidth of the gammatone vary? What does it change with?

A

weadsdad

18
Q

What are the problems with gammatones as a model for the cochlea?

A

wqasdae

19
Q

What is the impulse responses of a series of gammatone filters?

A

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20
Q

What is the stage after the basilar membrane? How can this be described?

A

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21
Q

What is the cochleagram? What does it do?

A

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22
Q

How does the Cochleagram work? Draw the diagram?

A

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23
Q

What is the half-way rectified?

A

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24
Q

What kind of processing step is this?

A

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25
Q

What other thing needs to be extracted?

A

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26
Q

How to extract periodicity?

A

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27
Q

What is short-term autocorrelation? What is the equation? What are the different components?

A

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28
Q

What is the windowing function? How does it look like? What are the properties?

A

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29
Q

What is the short-term correlation look like?

A

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30
Q

Where are the maximas on the short-term correlation function?

A

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31
Q

What happens when the delays are equal, when in between periods and when zero in the short term autocorrelation function?

A

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32
Q

What is the difference between a short term autocorrelation and a normal correlation function?

A

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33
Q

What is a problem with this short-term autocorrelation? How to solve?

A

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34
Q

What is triggered autocorrelation? How does it work?

A

WASDASD

35
Q

What is the equation for triggered autocorrelation? How does it differ from when not triggered?

A

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36
Q

What kind of firing does the low frequency and high frequency channels have? Therefore on the graphs on the slide where are they?

A

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37
Q
  1. What is an advantage of using the triggering procedure?

What is a SAI? What kind of images does it show for a vowel AE? What kind of images does it show for a consonant K?

A

sadads

38
Q

What is an example of the triggered autocorrelation in machine hearing?

A

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39
Q

What is sound search? What is the process?

A

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40
Q

How do the SAI compare to the MFCCs for sound searching? Which one is working better?

A

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Hearing and Speech Processing (18 decks)

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