Howtosignalprocessing
- How do you control the amplitude of a sine wave?
- How do you reduce amplitude?
- How do you damp a sine wave?
How do you control the amplitude of a sine wave?
To change the amplitude, multiply the sine function by a number. Two graphs showing a sine function. As you can see, multiplying by a number greater than 1 makes the graph extend higher and lower. The amplitude of y = 3sin x is 3.
How do you reduce amplitude?
The amplitude of a sound is controlled by multiplying the sound wave by a certain factor. A multiplier of 1 represents "unity gain", meaning no change. Multiplying by a factor between 0 and 1 reduces the amplitude of the sound.
How do you damp a sine wave?
Formula for a Damped Sine Wave
Draw a curve from peak to peak, and you'll see the exponential function. Exponential damping y(t) = e-t · cos (2 π t), with the exponential decay curve shown in red.
