Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the...

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Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes pressure changes in the medium. Pressure Fluctuations Pattern stays the same Pressur e decreas es

description

Most Sound is a Mix of Waves Time (msec)

Transcript of Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the...

Page 1: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Sound Waves

Sound is created when objects vibrate.

This vibration causes molecules in the surrounding medium to vibrate as well.

This, in turn, causes pressure changes in the medium.

Pressure Fluctuations

Pattern stays the same

Pressure decreases

Page 2: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Quantifying Sound

Amplitude

Intensity

Frequency

Hertz (Hz)

Page 3: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Most Sound is a Mix of Waves

Time (msec)

Page 4: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Spectral Analysis

Page 5: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Differences in Animal Hearing

Page 6: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Differences in Mammalian Hearing

Page 7: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

The Range of Human Hearing

Page 8: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Loudness Variations

Page 9: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Outer Ear Variations

Page 10: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Human Ear Divisions

Page 11: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Human Ear Anatomy

Page 12: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Middle Ear Bones

Malleus

Incus

Stapes

Page 13: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Inner Ear - Cochlea

Page 14: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

CochleaCross Section

Page 15: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Cochlear Partition

Organ ofCorti

Page 16: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Hair Cells

Page 17: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Hair Cell Neurochemistry

Inner Hair Cells:•afferent: Glu•efferent: ACh

Outer Hair Cells:•afferent: ACh•efferent: GABA

Page 18: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Sound, Vibration,

and Transduction

Page 19: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Stereocilia

Electronmicrographof stereocilia tip links

(Hudspeth, 1992)

Page 20: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Tip Link Neurochemistry

Tip Link Movement:

•Opens non-selective ion channels

•K+ and Ca++ enter cell causing depolarization

•Causing voltage-gated Ca++ channels to open at cells base

•Ca++ triggers the release of neurotransmitter that stimulates afferent fiber

Page 21: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Cochlea

Specific movementof the basilar membranestimulates specific cells

Page 22: Sound Waves Sound is created when objects vibrate. This vibration causes molecules in the surrounding medium to vibrate as well. This, in turn, causes.

Auditory Pathway

Auditory Cortex

Medial Geniculate Nucleus (MGN)

Inferior Colliculus

Superior Olivary Nucleus

Cochlear Nucleus

Auditory Nerve


Prepared By: Shakil Raiman. Sound waves are longitudinal waves Sound waves are produced by vibration of objects. Here the loudspeaker vibrate and.

Prepared By: Shakil Raiman. Sound waves are longitudinal waves Sound waves are produced by vibration of objects. Here the loudspeaker vibrate and.

Sound energy · 6/17/2018  · there are no particles to vibrate. Light energy, unlike sound, can travel through empty space. It doesn’t need particles. So you can still see the

Sound energy · 6/17/2018  · there are no particles to vibrate. Light energy, unlike sound, can travel through empty space. It doesn’t need particles. So you can still see the

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All stringed instruments make sound and notes by vibrating. Musicians make the strings vibrate by rubbing against it. Most stringed instrument have something.

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Experimental validation of an acceleration power spectral ... · The TBL causes the fuselage panels on the aircraft to vibrate, which radiate sound energy in the form of noise in

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Sound Advice That Causes Success In Social Media Marketing

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Light and Sound. Sound Sound is a longitudinal wave Sound causes compressions and rarefactions in the air molecules Sound must travel through a material.

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Light 27.4-27.6. Review Are light waves and sound waves part of the same scale? –No. Sound waves are mechanical, need a medium, and vibrate matter. Light.

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Sound and Communication. Sound is caused when vibrations make air move and vibrate. This causes sound waves which are picked up by your eardrum causing.

Sound and Communication. Sound is caused when vibrations make air move and vibrate. This causes sound waves which are picked up by your eardrum causing.

Sound. Sound What causes sound? Sound Waves Speed of Sound Frequency and Pitch The Doppler Effect.

Sound. Sound What causes sound? Sound Waves Speed of Sound Frequency and Pitch The Doppler Effect.

Sound Energy - Amazon S3...Sound is a form of energy that comes from objects that vibrate. All objects are made of m atter. Sound can travel through all kinds of matter. Image Source/age

Sound Energy - Amazon S3...Sound is a form of energy that comes from objects that vibrate. All objects are made of m atter. Sound can travel through all kinds of matter. Image Source/age

Energy Unit 2. Sound Energy that can be heard.Energy that can be heard. Caused when things vibrateCaused when things vibrate.

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RESA SOUND travels in Longitudinal Waves Particles vibrate back and forth along path wave travels Compression = particles are crowded Rarefaction = particles.

RESA SOUND travels in Longitudinal Waves Particles vibrate back and forth along path wave travels Compression = particles are crowded Rarefaction = particles.

To vibrate...

To vibrate...

Review of Sound Waves Waves move and carry energy Waves travel in a medium Waves are created when a source of energy causes a medium to vibrate Waves spread.

Review of Sound Waves Waves move and carry energy Waves travel in a medium Waves are created when a source of energy causes a medium to vibrate Waves spread.

Sound - Longitudinal Waves Sound is sourced by a vibrating object. A tuning fork when struck has tines that vibrate back and forth. Movement to the right.

Sound - Longitudinal Waves Sound is sourced by a vibrating object. A tuning fork when struck has tines that vibrate back and forth. Movement to the right.

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Sound Waves Sound Waves What Causes Sound? VIBRATIONS.

18 – 2 The Nature of Sound. What is Sound? Sound is a form of energy caused by vibrations. To vibrate means to move back and forth rapidly. What vibrates.

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€¦  · Web viewSound: Longitudinal Waves. Sound waves make air . vibrate. The vibrations in the air make your eardrum vibrate so you can . hear. For sound to be . heard vibrations

€¦  · Web viewSound: Longitudinal Waves. Sound waves make air . vibrate. The vibrations in the air make your eardrum vibrate so you can . hear. For sound to be . heard vibrations