IF A PIANO PRODUCES A SOUND OF 256 FREQUENCY, WHAT DOES THIS MEAN?
At the inside of a piano are strings, 1 for each key. The string vibrates when the key attached to it is depressed. It is similar to a string in a guiatar being plucked. Imagine an equivalent of the piano string is fixed at both ends to a wall. Imagine you stand at the middle point and press the string downward to as far as it will go then let go. The string will vibrate. Pretend that no other forces are acting on the string the vibrations will go on forever. From the point where you let go of the string, the string first try to return to the horizontal point, but momentum will cause it to overshoot the horizintal until it reaches a peak point approximately equivalent to the distance from the horizontal to the point where you let go of the string. In practise the oscillation will soon end due to all kind of interferences such as elasticity of the string, air surrounding the string and movement of the walls and so on. If you plot the peak to peak movement of the string against time, a c
