The fidelity of a speaker mainly refers to the nature of the sound

What characteristics of sound hi-fi refers to sound! Hello, I'm glad to answer your questions<> pro highly maintains the original most authentic sound. Because in the sound restoration, it needs to be joined by a lot of equipment.

If pre-amplification, tuning, power amplifier, speaker unit, etc. These devices are more or less distorted (loss of sound) that makes it difficult for us to hear the original sound again. High fidelity, that is, to minimize the loss of sound to the device.

As much as possible to restore the original sound. According to the original meaning of the high-fidelity system, it is the truth of the live performance, that is, the program through the high-fidelity system should be the same or basically close to the effect of the live performance. However, in order to achieve the effect of live performance, it is far from enough to pay attention to this link, and the entire process from live performance, program recording, program source production to ** must meet the high-fidelity technical requirements, which also includes the necessary modification of the signal in the ** process.

Although many quantitative technical indicators such as frequency response, distortion, transient response and signal-to-noise ratio are specified to evaluate the fidelity of a hi-fi equipment, they are only measurable indicators to test the fidelity of the equipment. By examining these indicators, we can indirectly understand how close or different the signal of the device** is from a live performance. A good hi-fi sound system should be very close to the effect of a live performance.

One of the fidelity metrics for an amplifier circuit, one of the main components of a sound system, is frequency response. Almost all power amplifiers, its frequency response characteristics are not completely flat, that is to say, it can not give the same amplification to each frequency component in the sound source signal, especially in the high and low frequency ends there is a large attenuation. In order to adjust and correct this imbalance?

A multi-band frequency equalizer is set up in the sound system. Go and enjoy the ** meeting. Will it be refreshing, not only because of the beautiful ** melody?

And what matters is the realism of the performances and singing. However, recorded programs broadcast through sound systems can often feel monotonous and boring. In addition to other factors, an important reason is that in the recording and playback process of the program, all the best signals have to pass through a signal channel to cause the signal"Crowded"and mutual interference.

Therefore. In a modern hi-fi system? In addition to the two-channel stereo system, there are multi-channel stereo sound, surround sound, digital delay circuits to enhance the sense of presence, and various live sound processing circuits.

These circuits in addition to restoring the field effect. There is also a buried part that is an additional artificial effect. But whether it's to restore the effect of the collapse grip or to add a new one.

Do you have any other questions?

"amplification" can increase the amplitude of the sound, so that the louder the sound of the hair is perceived;

"Fidelity" is to maintain the timbre of the original sound, so that the timbre of the sound remains unchanged;

So the answer is: loudness, timbre

Answer C Analysis: It should be judged on the basis of understanding the three characteristics of sound: pitch refers to the height of the sound; Loudness refers to the amount (intensity) of the sound perceived by the human ear; Timbre refers to the quality of the sound and the color of the special Zen fight

Answer: The loudness can be controlled by the volume knob, so the hi-fi does not maintain the loudness; According to life experience, the sound with good fidelity effect is the height of the sound, and the quality and characteristics of the sound are well maintained, so high fidelity refers to the tone and He Xiang timbre

Therefore, choose C Comment: On the basis of a thorough understanding of the three characteristics of sound, pay attention to the connection between Hongchan and the reality of life

The loudness can be controlled by the volume knob, so the hi-fi does not maintain the loudness; According to life experience, sound with good fidelity effect maintains the quality and characteristics of the sound well, so high fidelity refers to timbre

So the answer is: timbre

c speakers can control the loudness through the volume knob, so the hi-fi does not maintain the loudness; According to life experience, the sound with good fidelity effect is high and low, and the quality and characteristics of the sound are well maintained, so high fidelity refers to the tone and timbre Therefore, C is chosen

The loudness can be controlled by the volume knob, so the hi-fi does not maintain the loudness; According to life experience, the sound with good fidelity effect, the level of the sound, and the quality and characteristics of the sound are well maintained, so high fidelity refers to the blind code tone and timbre

Therefore, C