Easily understanding soundwaves

1. Sound Waves
Mikayla Watkinson and Maddy Swanson

2. Soundwave
A vibrational disturbance that involves mechanical motion of molecules transmitting
energy from one place to another.

3. Wavelength
The distance between two peaks of a wave.

4. Compression
Reducing a signal’s output level in relation to its input level to reduce dynamic range.

5. Frequency
The number of times per second that a sound source vibrates, expressed in hertz(Hz).

6. Hertz
Unit of measurement of frequency; numerically equal to cycles per second(cps).

7. Pitch
The subjective perception of frequency - the highness or lowness of a sound.

8. Amplitude
The magnitude of a sound wave or an electric signal measured in decibels(dB).

9. Decibel
A relative and dimensional unit to measure the ratio of two quantities.

10. Sound Frequency Spectrum
The range of frequencies audible to human hearing: about 20 to 20,000 Hz

11. Infrasonic
The range below the frequencies audible to human hearing.

12. Ultrasonic
The range above frequencies of human hearing.

13. Midrange
The part of the frequency spectrum to which humans are most sensitive; the
frequencies between roughly 320 Hz and 2,560 Hz.

14. Bass
The low range of the audible frequency spectrum; usually from 20 to 320 Hz.

15. Treble
Frequency range between roughly 5,120 Hz and 20,000 Hz, the highest two octaves
audible to human hearing in the sound frequency spectrum.

16. Fundamental
The lowest frequency a sound source can produce. In other words, it is also called the
first harmonic or primary frequency which is the lowest, or basic, pitch of a musical
instrument.

17. Phase
Factor in the interaction of one wave with another, either acoustically or electronically.

18. Velocity
Speed in a given direction.

19. Octave
The interval between two frequencies that have a tonal ratio of 2:1.

20. Harmonic
A multiple of the fundamental frequency. A wave with a frequency that is a positive
integer multiple of the frequency of the original wave.

21. Equalization
A signal-processing device that can boost, attenuate, or shelve frequencies in a sound
source or sound system.

22. Works Cited
Anton Schedlbauer. Slinky. N.d. Flickr.com. N.p., n.d. Web. 14 Feb. 2017.
Joanie. Wavelengths. N.d. Flickr.com. N.p., n.d. Web. 14 Feb. 2017.
Heather Gladden. Bass Clef 1. N.d. Flickr.com. N.p., n.d. Web. 14 Feb. 2017.
Isaac Kohane. Whales. N.d. Flickr.com. N.p., n.d. Web. 14 Feb. 2017.
David Locke. Dog. N.d. Flickr.com. N.p., n.d. Web. 14 Feb. 2017.
Windell Oskay. Treble pretzel. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Mark Hooper. Wavelength. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
D. Keith. Frequency. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Tess Watson. Sound Waves: Low Pitch. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Tess Watson. Sound Waves: High Pitch. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
rabinal. rochelle-salt piezo divider. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Mr. Nixter. Amplitude Modulation. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Illusiontom. V=s/t. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Matthias Kühmayer. Octave. N.d. Flickr.com. N.p., n.d. Web. 15 Feb. 2017.
Meagan. Amp. N.d. Flickr.com. N.p., n.d. Web. 16 Feb. 2017.

23. Works Cited #2
https://upload.wikimedia.org/wikipedia/commons/thumb/7/74/Ultrasound_range_diagram.svg/2000px-
Ultrasound_range_diagram.svg.png
https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Moodswingerscale.svg/250px-
Moodswingerscale.svg.png
https://cdn.pixabay.com/photo/2016/07/10/21/46/bass-1508609_960_720.jpg
https://upload.wikimedia.org/wikipedia/en/a/a5/Petrushka_chord.png
https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Standingwaves.svg/775px-Standingwaves.svg.png