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# How do frequency and amplitude affect sound?

## How do frequency and amplitude affect sound?

Amplitude is important when balancing and controlling the loudness of sounds, such as with the volume control on your CD player. It is also the origin of the word amplifier, a device which increases the amplitude of a waveform. Frequency is the speed of the vibration, and this determines the pitch of the sound.

What is the frequency of a amplitude wave?

Frequency is the number of wave cycles passing a point per unit time. It is another important wave parameter, but there is no relationship between amplitude and frequency. Changing one does not affect the other. Amplitude cannot be calculated from frequency, and frequency cannot be calculated from amplitude.

What is the amplitude of a sound wave?

The amplitude of a sound wave is the measure of the height of the wave. The amplitude of a sound wave can be defined as the loudness or the amount of maximum displacement of vibrating particles of the medium from their mean position when the sound is produced.

### How does frequency affect amplitude?

The relation between the amplitude and the frequency of the wave is such that it is inversely proportional to the frequency. An increase in frequency results in a decrease in amplitude. A decrease in frequency results in the increase in amplitude.

Why does amplitude decrease as frequency increases?

The simple answer is that energy is proportional to the square of frequency and square of amplitude and so increasing frequency must mean amplitude decreases, however that’s assuming the energy of each mode is the same.

How is frequency different from amplitude?

There are two main properties of a regular vibration – the amplitude and the frequency – which affect the way it sounds. Amplitude is the size of the vibration, and this determines how loud the sound is. The unit of frequency measurement is Hertz (Hz). A frequency of 1 Hz means one wave cycle per second.

#### What is the relation between amplitude and frequency?

The relationship between the wave’s amplitude and frequency is such that it is inversely proportional to the frequency. The amplitude decreases as the frequency increases.

What is the frequency of a sound wave?

The frequency of sound waves is measured in hertz (Hz), or the number of waves that pass a fixed point in a second. Human beings can normally hear sounds with a frequency between about 20 Hz and 20,000 Hz. Sounds with frequencies below 20 hertz are called infrasound.

Does frequency depend on amplitude?

The frequency of oscillation does not depend on the amplitude.

## How are wavelength amplitude and frequency related?

The amplitude or height of a wave is measured from the peak to the trough. The wavelength is measured from peak to peak. Wavelength is directly related to the frequency of a given wave form.