Timbre, also known as timbre, is determined by the harmonic spectrum and envelope of sound waveform. The sound that can be heard clearly by the fundamental frequency of the sound waveform is called the fundamental, and the sound that is produced by the small vibration of each harmonic is called the overtone. Single frequency tone is called pure tone, and harmonic tone is called polyphony. Timbre is a term used to describe the pronunciation quality of musical instruments. Because each musical instrument has its own spectrum distribution characteristics, the timbre of the same musical instrument may not be consistent in different sound areas, but its timbre is generally consistent.

音色的影响因素也要注意：

We should also pay attention to the influence factors of timbre

一·信号源

I. signal source

功放的作用就是把微弱的电平信号源放大输出给音箱，然后由音箱里的喇叭单元的振动的频率快慢来发出各种频率的声音，也就是我们听到的高、中、低音，如果信号源有杂音（失真）或通过压缩以后丢失了某些信号成分，通过功放功率放大以后，这些杂音就会放大的更大，丢失的成分就放不出来，所以在我们评价音响时用的音源好坏很关键

The function of the power amplifier is to amplify and output the weak level signal source to the speaker, and then emit the sound of various frequencies by the vibration frequency of the speaker unit in the speaker, that is, the high, medium and low frequencies we hear. If the signal source has noise (distortion) or some signal components are lost after compression, after amplification by the power amplifier, These noises will be amplified more, and the lost components will not be released, so the sound source used in our evaluation of sound is very important

二·器材本身

Equipment itself

也就是说功放要信噪比高、有用频响要宽、失真度底，音箱有用频率要宽、频响曲线要平坦，频响能达到20Hz--20KHz的音响可以说是很不错的，目前一只音箱能达到20Hz--20KHz+3%dB的是少之又少，市面上有好多音响说高频能达到30甚40KHz,这说明音响品质是在不断的进步，但是我们正常人的耳朵超过20KHz以上的信号是很难分辨出来，所以追求一些我们听不到的超 高频也没必要，只有频响宽曲线平坦才能逼真的再现原声，功率方面就要看使用面积的大小而定，要成正比，如果面积太小功率太大，声压一大就会造成太多的反射声，使音色变得浑浊不清，反之则声压不够。功放功率比音箱功率在阻抗匹配时大20％到50％这样低音会结实有力些，中高音层次会较清晰，声压大时没那么容易失真

That is to say, the power amplifier should have high signal-to-noise ratio, wide useful frequency response and low distortion, the speaker should have wide useful frequency and flat frequency response curve, and the sound whose frequency response can reach 20Hz-20KHz can be said to be very good. At present, few speakers can reach 20Hz-20KHz + 3% DB. There are many speakers on the market who say that the high frequency can reach 30 or even 40KHz, which shows that the sound quality is constantly improving, However, it is very difficult to distinguish the signals of our normal ears that exceed 20kHz, so it is unnecessary to pursue some UHF signals that we can't hear. Only when the frequency response curve is flat can we reproduce the original sound realistically. The power depends on the size of the area used, which is proportional to the power. If the area is too small and the power is too large, the sound pressure will cause too much reflected sound, Make timbre become turbid, otherwise sound pressure is not enough. The power of the amplifier is 20% to 50% higher than that of the speaker in impedance matching, so that the bass will be stronger, the middle and high levels will be clearer, and the distortion will not be so easy when the sound pressure is high

三·使用者本身

3. Users themselves

有些人买音响是为了摆设，有些人是为了欣赏音乐、还有一种是为了显耀，简单点说如果一个人如果连高低音都分不清楚的话，能听出什么是好的音质吗？除了会听还得会用，有些人音响装好后，安装技师调好效果简单讲讲，结果是有不小心谁好奇去动了一些旋钮，效果大家就可想而知了，这里并不是说要懂什么技术，就像我们开车一样起码要弄懂各个开关、按钮、旋钮是什么作用，才能发挥这个车的性能和使用安 全。

Some people buy stereos for decoration, some for music appreciation, and another for showing off. To put it simply, if one can't distinguish between high and low, can one recognize what is good sound quality? In addition to being able to listen, some people have to be able to use it. After the stereo is installed, the installation technician will adjust the effect. As a result, one day, if someone accidentally moves some knobs, you can imagine the effect. This is not to say that we need to understand any technology, just like driving, at least we need to understand the functions of switches, buttons and knobs, In order to give full play to the car's performance and use safety.