There are three different characteristics of sound

Timbre is related to the nature of the sounding object, the loudness is related to the vibrational frequency of the sounding object, and the amplitude of the sounding object.

Simple. It is the three elements of music: tone, timbre, and loudness.

There are differences in high and low sounds, and there are differences in strength.

There are three elements (or characteristics) of sound: tone, loudness, and timbre.

2.The pitch of a sound is determined by the vibrational frequency of the emitter. The higher the frequency, the higher the pitch of the sound.

If the vibration frequency of different emitters is the same, the tone is the same.

3.Sound - infrasound, sound and ultrasound. People call sounds with frequencies below 20 Hz infrasound.

Sounds with frequencies higher than 20000 Hz are called ultrasound. The range that humans can hear (20 to 20000 Hz) is called sound. The sounds made by bats and dolphins tend to be ultrasound; Tsunami, typhoon, and elephant sounds are all infrasound, and animals have a wider hearing range than humans.

Ultrasound and infrasound are inaudible.

2. Loudness - the magnitude (intensity) of the sound.

1.Amplitude is a physical quantity that represents the magnitude of the vibrational amplitude of an object.

2.The loudness of the sound is determined by the amplitude. When an object vibrates, the maximum distance from its original position is known as the amplitude. The greater the amplitude, the greater the loudness. The main way to increase loudness is to reduce sound divergence.

3.The loudness of the sound is also related to the distance from the sound emitter. The farther away you are, the less loud the sound becomes.

3. Timbre - the quality of the sound.

1.The timbre of a voice is determined by the emitter itself.

1) The timbre of the sound is different due to the different materials and structures of different emitters.

2) The timbre and loudness of different objects may be the same, but the timbre must be different;

Distinguish the three elements: listen to the sound and recognize the person - judge according to the timbre of different people; Shouting loudly – finger loudness; Soprano singer – refers to the tone.

Determine whether it is noisy or not

Physical Definition: Noise is the sound produced when a generator vibrates irregularly. Physiological Definition:

All sounds that interfere with normal rest, study, and work, as well as sounds that interfere with people's hearing. In this sense, the ** of noise is multifaceted. The sound of cars on the street, the voices of people in the quiet library, the sound of machines on the construction site, the loud neighbor's television, all noise.

In general, noise is produced by the vibration of an object.

The three characteristics of sound are: pitch, loudness, and timbre.

Pitch: The pitch of the voice is called pitch.

Frequency: The number of times an object vibrates within 1s is called frequency.

The symbol for frequency is f and the unit is hz.

What determines the pitch: frequency.

The higher the frequency of the vibration of the object, the higher the tone it emits.

The frequency that most people are able to hear ranges from 20Hz to 20000Hz.

Ultrasound is sound above 20,000Hz; Infrasound is the sound below 20Hz. Neither of these sounds can be heard.

Bats and dolphins can emit ultrasound waves. Dolphins, cats, and dogs can hear ultrasound, and dogs can hear infrasound.

Sound is a sound wave produced by the vibration of an object. It is a wave phenomenon that propagates through a medium (air or solid, liquid) and can be perceived by the auditory organs of humans or animals.

1.Loudness. The magnitude of the sound (commonly known as the volume) is determined by the "amplitude" and the distance between the person and the sound source, the greater the amplitude, the louder, and the smaller the distance between the person and the sound source, the louder the louder. The loudness of the sound perceived by people is not a constant, and the magnitude of the loudness perceived by different people, different frequencies, and different sound pressure levels (units: decibels) has significantly different results.

2.Tone. The high and low of the sound (treble, bass) is determined by the "frequency", the higher the frequency, the higher the pitch (frequency unit Hz (hertz), hertz rl, the human ear hearing range below 20 is called infrasound, above 20000 Hz is called ultrasound) For example, the sound of the low end or the sound of higher such as thin strings.

3.Timbre. Also known as a fret, the waveform determines the timbre of the sound. Sound has different properties due to the characteristics of different objects and materials, and timbre itself is an abstract thing, but the waveform is an intuitive expression of this abstraction. The timbre is different, and the waveform is different.

Typical timbre waveforms are square waves, sawtooth waves, sine waves, pulse waves, etc. The different timbres can be completely distinguished by the waveform.

1) Pitch: The human ear's perception of the high and low of a sound is called pitch. Tone is mainly related to the frequency of sound waves. The higher the frequency of the sound waves, the higher the pitch.

The number of times an object vibrates in 1 second is called frequency. The faster the object vibrates, the greater the frequency. Therefore, the pitch is related to the frequency of the emitter's vibration.

The higher the frequency, the higher the pitch; The lower the frequency, the lower the pitch. Bass singers can go as low as 65 beats per second, while soprano singers can go as high as 1180 beats per second.

2) Timbre: Timbre is the characteristic that distinguishes people from two sounds with the same loudness and the same tone, or the comprehensive response of the human ear to sound waves of various frequencies and intensities. Timbre is related to the vibrational waveform of the sound wave, or to the spectral structure of the sound.

3) Loudness: The subjective perception of the human ear about the strength of a sound is called loudness. Loudness is related to the amplitude of the sonic vibration. Generally speaking, the greater the amplitude of the sound wave, the louder it will be.

The maximum distance that an object deviates from its original position when it vibrates is called the amplitude. Experiments have shown that the greater the amplitude of the tuning fork and rubber band, the louder the sound people hear. Therefore, the magnitude and loudness of the sound perceived by the human ear are related to the amplitude of the sound emitter.

The greater the amplitude, the greater the loudness. The lower the amplitude, the less loudness. Loudness is also related to the distance from the emitter. Sound travels from the vocal body in all directions and becomes more dispersed the farther away it goes, so the farther away people are from the vocal body, the smaller the sound they hear.

If you can find a way to reduce the dispersion of the sound, you can make the sound louder.

Tone, which is related to frequency.

Loudness, which is related to amplitude and distance.

Timbre, which is related to material and structure, is the basis for distinguishing sound.

Categories: Science & Engineering.

Analysis: The three characteristics of sound are: pitch, loudness, and timbre.

Loudness: The loudness of the sound is called guessing the loudness. The unit of loudness is , and the symbol is .The magnitude of the loudness is related to the vibration of the sound source, and the greater the loudness, the louder it is.

Tone: The tone of the sound is called tone. The pitch is determined by the vibration of the sound source, and the higher the pitch, the higher the pitch.

Timbre: Timbre is determined by the structure and material of the emitter. The timbre of the sound is different, and so is the waveform of the sound