Sound
What is Sound?
What is Sound?
Vocabulary
| sound | something that is heard |
| vibration | a continuous slight shaking movement : a series of small, fast movements back and forth or from side to side |
frequency | the number of times that something (such as a sound wave or radio wave) is repeated in a period of time (such as a second); cycles per second |
| amplitude | the maximum extent of a vibration or oscillation |
| pitch | the quality of sound due to the frequency - high, low… |
| volume | the quality of sound due to the intensity - soft, loud… |
| Hertz | the name of the unit for frequency measurements: cycles per second |
| perceive | to notice or become aware of (something) |
Sound
Sound Waves have two important qualities:
Frequency which we perceive as pitch: low to high
Amplitude which we perceive as intensity: soft to loud
On-line Oscilloscope
Sound Waves have two important qualities:
Frequency which we perceive as pitch: low to high
Amplitude which we perceive as intensity: soft to loud
On-line Oscilloscope
What do sound waves of different frequencies sound like?
Tone Generator This will generate a sound based on the frequency you hear.
Piano Keys & Frequency
This is a list of the frequency of the sound produced by each "C" key on the piano.
Chart
Key | Frequency |
C-8 | 4186 |
C-7 | 2094 |
C-6 | 1047 |
C-5 | 523 |
C-4 | 262 |
C-3 | 131 |
C-2 | 65 |
C-1 | 33 |
Wikipedia Link