The relationship between sound and frequency, pitch, loudness, and timbre

Sound is produced by vibration, there are large vibrations, there are small vibrations, there are overall vibrations and local vibrations, therefore, the sound is a compound tone, which can be decomposed into basic tones and overtones, and the frequency of the basic tone is called the fundamental frequency of the tone, which determines the pitch of the sound, that is, the pitch. From the waveform of the sound, it is quasi-periodic, and this period determines the pitch of the sound.

The amplitude of the vibration of the sound determines the loudness of the sound.

The overtones of the compound sound determine the timbre of the sound, which is determined by the material of the vibrating object, the vibration mode, the shape and size of the resonant cavity.

The following waveform analysis is the violin's sound waveform and sound decomposition, which vividly illustrates this problem.

Frequency refers to the number of times a sound vibrates per second, and it determines the pitch of the sound. The intensity of a sound is called loudness, and it is determined by the amplitude of the sound. Timbre refers to the sound quality and quality of the sound, and the timbre of the sound is different due to the different materials and structures of different generators.

The height of the pitch is determined by the vibrational frequency of the sound, with a doubling of the frequency and an octave increase in the pitch;

The loudness of the sound is proportional to the amplitude of the sound, and the greater the amplitude of the vibration, the louder it sounds;

Timbre is a term used to distinguish one sound from another, for example, when playing a tone of the same pitch with a flute and an erhu, we can tell the difference between them because they have different timbres.

The factors that determine timbre are determined by the difference in the vibration waveform, that is, the difference in the higher harmonics contained in a vibration waveform.

Pitch: The pitch of a sound is called pitch, which is determined by the frequency at which the object vibrates.

The higher the frequency, the higher the pitch, and the lower the frequency, the lower the pitch.

Loudness: The strong drop of the sound is called loudness, and the loudness is determined by the amplitude.

The greater the amplitude, the louderness, and the smaller the amplitude, the smaller the loudness.

Example. Tone: The difference in 1 2 3 4 5 6 7 in ** is the tone.

Loudness: It is the magnitude of the sound, such as speaking loudly.

Loudness, tone, and timbre are the three elements that describe the characteristics of a sound. The specific differences between pitch, timbre, and loudness are:

1. Tone is mainly related to the frequency of sound waves. The higher the frequency of the sound waves, the higher the pitch.

2. The 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.

3. 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.

Tone:

**There is (Dolemi.

Fa Solo Lasi Do)" refers to the higher and higher pitch.

The frequency of the sound is the pitch, which is one of the three main subjective attributes of sound, namely volume (loudness), tone, and timbre (also known as sound). It indicates the degree to which a person's hearing can distinguish the tone of a sound.

The pitch is mainly determined by the frequency of the sound and is also related to the intensity of the sound. For pure tones of a certain intensity, the pitch rises and falls with the rise and fall of frequency; The pitch of a certain frequency of pure tone and low frequency pure tone decreases with the increase of sound intensity, while the tone of high-frequency pure tone increases with the increase of intensity.

Eat up the physical characteristics of sound – loudness and timbre.

Pitch refers to the frequency of the voice, such as the girl's voice is high-pitched, and the boy's voice is low;

Loudness refers to the volume of the sound, the girl's scream can also be very loud, it can also be very weak, the boy's whisper is also difficult to hear, and you can also shout;

Timbre is due to the harmonic frequency component of the sound other than the main frequencies in the sound. If the main frequency is the same, if the harmonic frequency is different, it will sound different. It's like playing the same song on the piano and flute, with the exact same tone, but it doesn't sound the same timbre.

They are three different things. There is no necessary connection.

Eat up the physical characteristics of sound – loudness and timbre.

How to distinguish tones, loudness and timbre1 Frequency determines the pitch and amplitude determines the amount of energy. 2 Timbre has nothing to do with amplitude and frequency, it is the inherent nature of the emitter and the nature of the propagation medium that determine the timbre. 3。

If you play the piano, you will find that the higher the tone, the smaller the sound, the difference between loudness and pitch is to see whether the emphasis is on the degree of deafness or the pitch in **, if not, it will be classified into the timbre.