INF5470 Fall 2010 Philipp Hfliger Lecture 7: Cochleomorphic - - PowerPoint PPT Presentation

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INF5470 Fall 2010 Philipp Hfliger Lecture 7: Cochleomorphic - - PowerPoint PPT Presentation

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INF5470 Fall 2010 Philipp Hfliger Lecture 7: Cochleomorphic Hearing Content The Ear and the Cochlea Silicon Cochlea Lecture 7: Cochleomorphic Hearing 2 Content The Ear and the Cochlea Silicon Cochlea Lecture 7: Cochleomorphic

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INF5470 — Fall 2010

Philipp Häfliger Lecture 7: Cochleomorphic Hearing

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SLIDE 2

Content

The Ear and the Cochlea Silicon Cochlea

Lecture 7: Cochleomorphic Hearing 2

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SLIDE 3

Content

The Ear and the Cochlea Silicon Cochlea

Lecture 7: Cochleomorphic Hearing 3

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SLIDE 4

Ear and Cochlea Cross Section

Lecture 7: Cochleomorphic Hearing 4

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SLIDE 5

Cochlear Duct Cross Section

Lecture 7: Cochleomorphic Hearing 5

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Hairs of Basilar Membrane Hair Cells

Lecture 7: Cochleomorphic Hearing 6

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SLIDE 7

Content

The Ear and the Cochlea Silicon Cochlea

Lecture 7: Cochleomorphic Hearing 7

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SLIDE 8

Resonant Second Order Low Pass Filter

¨ Vout =

1 τ1τ2 (Vout − Vin) −

1

τ1 + 1 τ2 − 1 τ3

  • ˙

Vout

Lecture 7: Cochleomorphic Hearing 8

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SLIDE 9

Second Order Filters in Parallel

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0.2 0.4 0.6 0.8 1 1.2 1.4 freq ω amplification Lecture 7: Cochleomorphic Hearing 9

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SLIDE 10

Second Order Filters in Cascade

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0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 amplification freq ω Lecture 7: Cochleomorphic Hearing 10