# auditory-transduction-lecture-excerpt

Source: auditory-transduction-lecture-excerpt.pdf | Format: PDF | Sections: 8 | Profile: Balanced | Mode: Heavy Audit | Routing: 5 text-layer-plus-image-OCR page(s), 3 OCR page(s) | Ranges: ocr 1-2 | text-layer-plus-image-ocr 3-5 | ocr 6-6 | text-layer-plus-image-ocr 7-8 | Generated: 2026-05-08T21:44:42Z

## Page 1

Route: ocr

OCR boxes: 22

Probable label groups: 4

Chart/diagram semantic candidates: 0

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

### Probable label groups

1. Group 1, medium confidence
   Cortex cerebellum | Reticular formation | Extra-pyramidal system
2. Group 2, medium confidence
   Eye | Joint position | Proprioception | Superficial sensation | Integrating/ | data storage | system | Cortical awareness o | head/body/motion | Eye movement/ | control of oculomotor | activity
3. Group 3, medium confidence
   = distance sound wave travels in time (t+x) | blue
4. Group 4, medium confidence
   Labyrinthine activity | Control of | motor skills | Control of posture

OCR confidence overlay

    Cortex cerebellum

    Reticular formation

    Extra-pyramidal system

    Cortical awareness o

    Eye

    head/body/motion

    orange = distance sound wave travels in time t

    Integrating/

    blue = distance sound wave travels in time (t+x)

    data storage system

    Figure labels:

    - Eye movement/
    - Joint position control of oculomotor
    - Proprioception activity
    - Superficial sensation
    - Labyrinthine activity
    - Control of posture
    - Control of motor skills

## Page 2

Route: ocr

OCR boxes: 44

Probable label groups: 1

Chart/diagram semantic candidates: 3

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

OCR note: low-confidence OCR text detected. Check spelling, missing characters, and truncated labels against the original slide.

### Probable label groups

1. Group 1, medium confidence
   250 | 125 | 10 | 60 | 70 | 80 | 90 | 100 | [Hz] | 3000 | 1000 2000 | 8000 | 6000 | 4000 | AUDIOGRAM | Left Ear X | -10 | Normal Hearing | 10 | 20 | Mild Hearing Loss | 30 | 40 | 50 | Moderate Hearing Loss | 60 | 70 | Severe Hearing Loss | 80 | 90 | Profound Hearing Loss | 100 | 110 | 120 | Right Ear | 125 | 500 | 250 | 1000 | Frequency in Hertz (Hz) | 4000 | 2000 | 8000

### Chart/diagram semantic candidates

1. Probable vertical chart axis tick labels, medium confidence
   -10 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120
   orientation=vertical ; tickLabelCount=13 ; averageOCRConfidence=0.923
2. Probable horizontal chart axis tick labels, medium confidence
   120 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000
   orientation=horizontal ; tickLabelCount=8 ; averageOCRConfidence=0.938
3. Probable chart label cloud, medium confidence
   250 | 125 | 10 | 60 | 70 | 80 | 90 | 100 | [Hz] | 3000 | 1000 2000 | 8000 | 6000 | 4000 | AUDIOGRAM | Left Ear X | -10 | Normal Hearing | 10 | 20 | Mild Hearing Loss | 30 | 40 | 50 | Moderate Hearing Loss | 60 | 70 | Severe Hearing Loss | 80 | 90 | Profound Hearing Loss | 100 | 110 | 120 | Right Ear | 125 | 500 | 250 | 1000 | Frequency in Hertz (Hz) | 4000 | 2000 | 8000
   sourceLabelGroup=1 ; labelCount=43 ; numericLabelCount=33 ; chartTermCount=9

OCR confidence overlay

    AUDIOGRAM

    125 250 1000 2000 3000 4000 6000 8000

    Left Ear X Right Ear

    Normal Hearing

    80 Hearing Level in Decibels (dB)

    Mild Hearing Loss

    Moderate Hearing Loss

    Severe Hearing Loss

    Profound Hearing Loss

    125 250 500 1000 2000 4000 8000

    Frequency in Hertz (Hz)

## Page 3

Route: text-layer-plus-image-ocr

OCR boxes: 10

Probable label groups: 2

Chart/diagram semantic candidates: 0

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

### Probable label groups

1. Group 1, medium confidence
   OUR HEARING SYSTEM PER | OUR BRAIN PERFORMS A SYNTHESIS | OUR BRAIN PER
2. Group 2, medium confidence
   - Fundamental | Various harmonics | - Synthesized wave

OCR confidence overlay

    SOUNDS PRODUCED BY MUSICAL INSTRUMENTS OR THE HUMAN VOICE CONSIST OF MANY
    TONES
    OUR HEARING SYSTEM PERFORMS A FREQUENCY ANALYSIS
    OUR BRAIN PERFORMS A SYNTHESIS
    THE FUNDAMENTAL HARMONIC THE LOWEST FREQUENCY OF A PERIODIC WAVEFORM

    #### Image OCR

    Various harmonics
    - Synthesized wave

## Page 4

Route: text-layer-plus-image-ocr

OCR boxes: 33

Probable label groups: 2

Chart/diagram semantic candidates: 2

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

OCR note: low-confidence OCR text detected. Check spelling, missing characters, and truncated labels against the original slide.

### Probable label groups

1. Group 1, medium confidence
   Tympanic membrane | vibrates in response | Tympanic membrane | vibrates in response | Vibrations are | amplified across | Vibrations are | amplified across
2. Group 2, medium confidence
   Sound wave represents alternating | • Sound wave represents alternating | Wavelength | Wavelength | Frequency of sound wave | measured in Hz (cycles | Frequency of sound wave | per second) | measured in Hz (cycles | per second) | THE OUTER EAR STRUCTURES MUST

### Chart/diagram semantic candidates

1. Repeated diagram label text detected, medium confidence
   Tympanic membrane | vibrates in response | Tympanic membrane | vibrates in response | Vibrations are | amplified across | Vibrations are | amplified across
   sourceLabelGroup=1 ; labelCount=8 ; uniqueLabelCount=4
2. Probable chart label cloud, medium confidence
   Sound wave represents alternating | • Sound wave represents alternating | Wavelength | Wavelength | Frequency of sound wave | measured in Hz (cycles | Frequency of sound wave | per second) | measured in Hz (cycles | per second) | THE OUTER EAR STRUCTURES MUST
   sourceLabelGroup=2 ; labelCount=11 ; numericLabelCount=0 ; chartTermCount=2

OCR confidence overlay

    OUTER EAR
    THE PART MOST VISIBLE IS THE PINNA
    IT FUNNELS SOUND WAVES INTO THE EXTERNAL AUDITORY CANAL
    THE OUTER EAR STRUCTURES MUST
    FOCUS SOUND WAVES ON THE TYMPANIC MEMBRANE
    SOUND CAUSES THE TYMPANIC MEMBRANE TO VIBRATE LIKE A DRUM

    #### Image OCR

    Vibrations are
    vibrates in response
    amplified across
    areas of high and low pressure.
    Wavelength
    measured in Hz (cycles
    per second)
    vibrates in response amplified across

## Page 5

Route: text-layer-plus-image-ocr

OCR boxes: 36

Probable label groups: 3

Chart/diagram semantic candidates: 1

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

OCR note: low-confidence OCR text detected. Check spelling, missing characters, and truncated labels against the original slide.

### Probable label groups

1. Group 1, medium confidence
   THE EUSTACHIAN TUBE | MIDDLE EAR
2. Group 2, medium confidence
   TO EQUALIZE THE AIR PRESSURE | Middle | CONNECTS THE N | ear | ICA | Bony-cartilaginous | junction (isthmus) | Middle | Eustachian | ear | Bony portion | Cartilaginous | Nasopharynx | tube | THI | portion | (SWALLOWING) | AR | AN TUBE | ГO THE NASOPHARYNX | inner ear | nasal passage | Mastoiditis usually | arises in the pas- | sages of the | middle and inner | ear, nose, and
3. Group 3, medium confidence
   throat | passage

### Chart/diagram semantic candidates

1. Repeated diagram label text detected, medium confidence
   TO EQUALIZE THE AIR PRESSURE | Middle | CONNECTS THE N | ear | ICA | Bony-cartilaginous | junction (isthmus) | Middle | Eustachian | ear | Bony portion | Cartilaginous | Nasopharynx | tube | THI | portion | (SWALLOWING) | AR | AN TUBE | ГO THE NASOPHARYNX | inner ear | nasal passage | Mastoiditis usually | arises in the pas- | sages of the | middle and inner | ear, nose, and
   sourceLabelGroup=2 ; labelCount=27 ; uniqueLabelCount=25

OCR confidence overlay

    MIDDLE EAR
    THE EUSTACHIAN TUBE
    CONNECTS THE MIDDLE EAR TO THE NASOPHARYNX
    TO EQUALIZE THE AIR PRESSURE ON OPPOSITE SIDES OF THE TYMPANIC MEMBRANE
    (SWALLOWING)

    #### Image OCR

    Bony portion
    inner ear
    Cartilaginous
    portion
    nasal passage
    Mastoiditis usually
    arises in the pas-
    Bony-cartilaginous
    middle and inner sages of the
    junction (isthmus)
    ear, nose, and throat.
    throat
    passage

## Page 6

Route: ocr

OCR boxes: 30

Probable label groups: 0

Chart/diagram semantic candidates: 0

OCR note: low-confidence OCR text detected. Check spelling, missing characters, and truncated labels against the original slide.

OCR confidence overlay

    INWARD MOVEMENT OF B OUTWARD MOVEMENT

    TYMPANIC MEMBRANE OF TYMPANIC MEMBRANE

    External Middle ear

    ineus

    ear canal

    Malleus

    Stapes

    Oval window

    ,Scala

    vestibuli PULL

    tympani

    Tympanic

    Round window

    membrane Eustachian membrane

    pushed by the tube

    pulled by the

    compression

    rarefaction

    pnase or a

    sound wave

## Page 7

Route: text-layer-plus-image-ocr

OCR boxes: 41

Probable label groups: 6

Chart/diagram semantic candidates: 3

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

OCR note: low-confidence OCR text detected. Check spelling, missing characters, and truncated labels against the original slide.

### Probable label groups

1. Group 1, medium confidence
   cochlear | duct | stria vascularis | Reissner's membrane | scala vestibuli
2. Group 2, medium confidence
   tectorial | membrane | spiral | limbus | tectorial | membrane | spiral | cochlear | limbus | nerve
3. Group 3, medium confidence
   > THE SCALA VESTIBULI | SEPARATES THE SCALA VESTIBULI | FROM THE MIDDLE COMPARTMENT | > THE SCALA MEDIA | REISSNER'S MEMBRANE | THE BASILAR MEMBRANE | cochlear | duct | basilar | membrane | spiral | ligament | basilar | membrane | organ of Corti
4. Group 4, medium confidence
   spiral | ligament
5. Group 5, medium confidence
   cochlear | scala tympani | nerve | scala tympani
6. Group 6, medium confidence
   SEPARATES THE SCALA MEDIA FROM | > THE SCALA TYMPANI

### Chart/diagram semantic candidates

1. Repeated diagram label text detected, medium confidence
   tectorial | membrane | spiral | limbus | tectorial | membrane | spiral | cochlear | limbus | nerve
   sourceLabelGroup=2 ; labelCount=10 ; uniqueLabelCount=6
2. Repeated diagram label text detected, medium confidence
   > THE SCALA VESTIBULI | SEPARATES THE SCALA VESTIBULI | FROM THE MIDDLE COMPARTMENT | > THE SCALA MEDIA | REISSNER'S MEMBRANE | THE BASILAR MEMBRANE | cochlear | duct | basilar | membrane | spiral | ligament | basilar | membrane | organ of Corti
   sourceLabelGroup=3 ; labelCount=15 ; uniqueLabelCount=13
3. Repeated diagram label text detected, medium confidence
   cochlear | scala tympani | nerve | scala tympani
   sourceLabelGroup=5 ; labelCount=4 ; uniqueLabelCount=3

OCR confidence overlay

    ➢ THE SCALA VESTIBULI
    ❖ REISSNER’S MEMBRANE
    SEPARATES THE SCALA VESTIBULI
    FROM THE MIDDLE COMPARTMENT
    ➢ THE SCALA MEDIA
    ❖ THE BASILAR MEMBRANE
    SEPARATES THE SCALA MEDIA FROM
    ➢ THE SCALA TYMPANI

    #### Image OCR

    stria vascularis
    cochlear
    duct
    tectorial
    spiral
    limbus
    nerve
    organ of Corti
    ©1997 Encyolopaedia Britannica, Ine. cochlear
    ligament
    91997 Encyclopaedia Britannica, Ine.

## Page 8

Route: text-layer-plus-image-ocr

OCR boxes: 49

Probable label groups: 6

Chart/diagram semantic candidates: 2

OCR note: diagram or chart labels were extracted. Spatial relationships were not reconstructed.

### Probable label groups

1. Group 1, medium confidence
   canal | Sound waves | Tympanic | membrane | Malleus | Incus | Secondary tympanic | membrane vibrating | in round window | Stapes vibrating | in oval window | Helicotrema | Perilymph | Middle ear | Cochlea | Auditory tube | Spiral organ | (organ of Corti) | Tectorial membrane | Vestibular membrane | Basilar | membrane | Spiral organ | (organ of Corti) | Tectorial membrane | Vestibular membrane
2. Group 2, medium confidence
   TRAVELING | PRESSURE WAVES
3. Group 3, medium confidence
   Cochlear duct | (contains endolymph) | Scala | tympani | Scala | vestibuli
4. Group 4, medium confidence
   External auditory | canal | 'IBULI PRESSURE INCREASE | Tympanic | membrane | Middle ear | Auditory tube
5. Group 5, medium confidence
   Cochlear duct | (contains endolymph)
6. Group 6, medium confidence
   SCALA VESTIBULI PRESSURE INCREASE | Secondary tympanic | membrane vibrating | in round window

### Chart/diagram semantic candidates

1. Repeated diagram label text detected, medium confidence
   canal | Sound waves | Tympanic | membrane | Malleus | Incus | Secondary tympanic | membrane vibrating | in round window | Stapes vibrating | in oval window | Helicotrema | Perilymph | Middle ear | Cochlea | Auditory tube | Spiral organ | (organ of Corti) | Tectorial membrane | Vestibular membrane | Basilar | membrane | Spiral organ | (organ of Corti) | Tectorial membrane | Vestibular membrane
   sourceLabelGroup=1 ; labelCount=26 ; uniqueLabelCount=21
2. Repeated diagram label text detected, medium confidence
   Cochlear duct | (contains endolymph) | Scala | tympani | Scala | vestibuli
   sourceLabelGroup=3 ; labelCount=6 ; uniqueLabelCount=5

OCR confidence overlay

    TRAVELING
    PRESSURE WAVES
    SCALA VESTIBULI PRESSURE INCREASE
    PRESSURE WAVES DISPLACE THE REISSNER’S AND THE BASILAR MEMBRANE

    #### Image OCR

    Malleus Incus
    Stapes vibrating Helicotrema
    Cochlea
    in oval window
    Sound waves
    Perilymph
    tympani
    External auditory
    canal
    Spiral organ
    (organ of Corti)
    Tectorial membrane
    Vestibular membrane
    Cochlear duct
    Tympanic
    (contains endolymph)
    Secondary tympanic
    membrane vibrating
    in round window
    Middle ear Auditory tube
    Middle ear
    Auditory tube