Term
| peak amplitude can be defined as distance displaced corresponding to the: |
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Definition
|
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Term
| peak to peak amplitude can be defined as distance displaced corresponding to the: |
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Definition
| amplitude from 90 degrees to 270 degrees |
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Term
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Definition
-is an average amplitude of all of the measurements
-involves taking several measurements, not just one at the 90 degree point, or just one from 90 degrees to 270 degrees |
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Term
True or False:
the greater the amplitude a sound wave has, the greater the dB level |
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Definition
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Term
True or False:
the greater the dB level a sound wave has, the greater the loudness |
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Definition
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Term
True or False:
we use the dBSPL formula because we have a large range of audibility from very soft to very loud sounds |
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Definition
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Term
True or False:
All of the following are included in the dBSPL formula:
-20, a multiplier that never changes
-Log
-P2, a reference sound pressure of 20 mPa |
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Definition
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Term
| Suppose a sound wave exerts a pressure of 60mPa. The dBSPL formula is: |
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Definition
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Term
True or False:
100 is easier to write and graph than 2,000,000 |
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Definition
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Term
| A 0dBSPL sound wave exerts a pressure of... |
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Definition
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Term
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Definition
| the average softest sound wave that a group of subjects in a research project heard |
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Term
| What do we call a 7.5dBSPL, 1000 Hz tone? |
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Definition
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Term
True or False:
At 2000 Hz, 7.5 dBSPL=0dBHL |
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Definition
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Term
True or False:
Suppose your threshold at 1000 Hz is 0dBHL. Your threshold is 7.5 dBSPL. |
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Definition
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Term
True or False:
At 2000 Hz, 11 dBSPL=0dBHL |
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Definition
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Term
True or False:
sound theoretically travels in all directions (in a sphere) in longitudinal waves |
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Definition
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Term
The surface area of a sphere can be defined mathematically as: Area=pi r2
r= what? |
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Definition
-the radius of the sphere
-the distance a sound has traveled from the source (in one direction) |
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Term
True or False:
The further a sound travels from its source, the more area it covers |
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Definition
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Term
True or False:
the further a sound travels from its source, the less intense it gets (less dB) |
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Definition
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Term
| Most vibrating bodies vibrate at: |
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Definition
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Term
| The frequencies of a complex tone sometimes occur predictably at whole number multiples called: |
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Definition
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Term
| The lowest frequency of a complex wave is: |
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Definition
-the fundamental frequency
-the first harmonic |
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Term
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Definition
| sound more like noise than periodic and quasiperiodic waves |
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Term
| Aperiodic waves have randomly and ever changing: |
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Definition
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Term
True or False:
A resonator can be a medium forced to vibrate by a body in free vibration |
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Definition
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Term
| The body of air in an acoustic guitar body, a vocal tract and an ear canal is called what? |
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Definition
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Term
| Resonators may be forced to vibrate at: |
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Definition
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Term
| Resonators will vibrate best at and around: |
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Definition
| It's own resonant frequencies |
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Term
| Resonant frequencies are determined by: |
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Definition
| the size of the resonator |
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Term
| the resonant frequencies of a complex tone are shown on a line spectrum as: |
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Definition
| harmonics with greater amplitude |
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Term
| Two musical instruments, both playing the same note might sound similar because they have the same: (3 things) |
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Definition
-fundamentals
-harmonic frequencies
-harmonic spacing |
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Term
| Two musical instruments, both playing the same note might sound different because they have harmonics that differ in: |
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Definition
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Term
True or False:
Females generally have shorter and less massive vocal folds than males and higher Fo than males |
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Definition
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Term
| The Fo is the most intense harmonic at the: |
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Definition
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Term
| Females generally have (higher or lower?) resonant frequencies |
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Definition
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Term
True or False:
components of complex waves are always called harmonics |
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Definition
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Term
| Harmonics of complex waves are also called: |
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Definition
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Term
True or False:
The first harmonic is the first overtone |
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Definition
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Term
| To create a vowel, we need: |
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Definition
-a force
-a medium
-a vibrating body |
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Term
| To create a vowel, our respiratory system provides: |
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Definition
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Term
| to create a vowel, our glottis provides: |
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Definition
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Term
| to create a vowel, the air in our vocal tract provides: |
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Definition
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Term
| to create a vowel, the air in the laryngopharynx, the oropharynx and the nasopharynx provides: |
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Definition
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Term
| using the glottis as a vibrating body is called: |
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Definition
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Term
True or False:
To phonate, we abduct our vocal folds |
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Definition
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Term
True or False:
When supraglottal air pressure is great enough, the vocal folds burst open |
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Definition
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Term
True or False:
When we adduct our vocal folds, we can build subglottal air pressure |
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Definition
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Term
| The vocal folds return to the midline because of these two things: |
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Definition
-the Bernouli effect
-vocal fold elasticity |
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Term
| The process of creating the vocal fold spectrum is called: |
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Definition
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Term
| This "popping" open of the vocal folds is like the popping of a cork in a bottle. The resulting air molecule motion is: |
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Definition
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