Loud sounds are sounds that are high in volume and soft sounds are those that are low in volume. Sound is a type of vibrating pressure that is transmitted in waves. The volume of a sound is directly determined by the amplitude of its sound waves, which is the height of a sound wave. The amplitude and volume of a sound increase as the height of the sound waves increases.Continue Reading
Some examples of loud sounds include lawn mowers, clapping hands and yelling. These sounds are produced by a large amount of energy being converted to sound, which increases the amplification of the waves. Soft sounds, contrarily, are produced by a small amount of energy being converted to sound, which decreases their volume. Whispering and a cat's purr are soft sounds.
Volume is perceived by small hairs in the ear vibrating in reaction to sound waves. Listening to loud sounds over long periods of time can be damaging to the ears and decrease sensitivity to sound. People in professions that expose them to loud sounds, such as construction or music, can preserve their hearing by wearing ear protection at work, which decreases the energy and amplitude of sound waves. Some studies suggest that the advent of music devices, such as iPods or the earlier Walkman, led to an increase of hearing issues from users overexposing their ears to loud sounds over a long time.Learn more about Optics & Waves
Examples of sound energy include sounds made by singing, whistling, musical instruments and horns. Sound is a vibration that causes a wave of pressure through air, water, wood and other mediums. It is heard when the wave reaches the ear and is perceived by the brain. Sound waves have characteristics including their frequency, amplitude, intensity, speed, direction and wavelength.Full Answer >
The key difference between infrasonic and ultrasonic waves is that infrasonic waves include sounds emitted at levels below frequencies of noise that can be heard by humans while ultrasonic waves are those that exceed 20 kilohertz, which is the upper limit of human noise perception. Ultrasonic waves are waves that have high amplitudes. These waves are also called micro sound, and exist primarily as longitudinal waves.Full Answer >
The difference between pitch and volume is that pitch is determined by the frequency that sound waves vibrate at while volume measures how loud or soft sound is. Combined with timbre, pitch, measured in hertz, and volume, measured in decibels, comprise the three components of sound.Full Answer >
Pulse-amplitude modulation allows data to be transmitted more efficiently, more quickly and in greater volume using conventional copper wires. The available frequency modulations are infinite, so PAM formulas can be continually developed to allow increasing data throughput over existing networks. PAM is also the simplest form of modulation.Full Answer >