How enhance amplitude of audio signal without distortion?

1. How do you reduce amplitude distortion?
2. What is used to increase the amplitude of a signal waveform without changing other parameters of the waveform such as frequency or wave shape?
3. How do you change the amplitude of a sound?
4. What causes distortion of the AM wave?

How do you reduce amplitude distortion?

Using negative feedback to control the gain of the amplifier stages can also reduce amplitude distortion by ensuring that a signal level is not reached where the output waveform of one stage may drive a following stage into its saturation and/or cut off regions.

What is used to increase the amplitude of a signal waveform without changing other parameters of the waveform such as frequency or wave shape?

An amplifier is used to increase the amplitude of a signal waveform, without changing other parameters of the waveform such as frequency or wave shape. They are one of the most commonly used circuits in electronics and perform a variety of functions in a great many electronic systems.

How do you change the amplitude of a sound?

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.

What causes distortion of the AM wave?

Sources of amplitude distortion include noise and interference, but the main source is non-linear amplification. Amplitude distortion can include noise sources superimposed on the waveform of interest. An example is 60 Hz power line hum from a defective power supply.