01 Frequency
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | 1. Neural Signals
2.Muscular Contractions
3. Structural Movement(lips, jaw, tongue, velum, vocal folds)
4. Areodynamic Events (result of structural movement- friction sounds, building up & releasing of pressure)
5.Acoustic Consequences
6.Speech
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| In order to have sound, you must have | show 🗑
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| In order to have vibration | show 🗑
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| Elasticity | show 🗑
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| show | -the tendency for a body at rest to remain at rest, or a body in motion to remain in motion.
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| show | -conduct sound well
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| show | -don’t conduct sound well
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| show | Compressions & Rarefactions
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| Degree of max compression | show 🗑
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| show | 270°
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| 2 tones are presented, with identical frequency and intensity. However, they are 180 degrees out of phase. What happens? | show 🗑
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| 2 tones are presented, with identical frequency and intensity, and the exact phase relationship. What would happen? | show 🗑
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| show | -The maximum displacement during a cycle of vibration
-The point of maximum compression
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| Sound is conducted through a medium by | show 🗑
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| show | point of stretch
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| Trough | show 🗑
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| show | peaks are point of maximum compression
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| relationship pf amplitude/compression and intensity. | show 🗑
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| show | loudness
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| show | The gradual decrease in the amplitude of vibration over time
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| Psychological perception of frequency | show 🗑
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| Psychological perception of Intensity | show 🗑
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| show | -Frequency (# of cycles, pitch) -- measured in Hertz (Hz)
-Intensity (height of wave, amplitude) -- measured in decibels (dB)
-Duration -- measured in milliseconds (ms)
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| Frequency is determined by what? | show 🗑
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| In order to have a perceptible pitch, a frequency that you can hear, there has to be... | show 🗑
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| periodic wave | show 🗑
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| aperiodic wave | show 🗑
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| show | -each cycle takes 1/1000 of a second
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| How long does it take to complete one cycle of a 250 Hz tone? or what is it's period | show 🗑
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| period | show 🗑
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| show | shorter
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| show | pull decimal to right 3 places.
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| show | =1/1000 sec
=0.001 sec
=1 ms
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| show | =1/2000
=0.0005 sec
=0.5 ms
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| show | =1/250 sec
=0.004 sec
=4ms
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| show | =1/500 sec
=0.002 sec
=2ms
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| show | decimal moves left 3 times
= 0.050 sec
= 1/0.05
= 20 Hz
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| What is the frequency of a tone that has a period of 5 ms? | show 🗑
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| show | =0.020 sec
=1/.02
=50 Hz
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| show | -must know the time per divion
-count how many seconds it takes to complete 1 cycle
-Ex:2ms to complete one cycle
2ms= .002 sec
1/.002
=500 Hz (frequency)
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Created by:
aramos139
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