What factors determine the sound quality of the sound

The volume of the sound is determined by the power of the speaker and the output power of the amplifier.

The quality of sound depends on a variety of factors, such as the characteristics of the sound source (sound pressure, frequency, spectrum, etc.), the signal characteristics of the audio equipment (such as distortion, frequency response, dynamic range, signal-to-noise ratio, transient characteristics, stereo separation, etc.), the characteristics of the sound field (such as direct sound, early reflection sound, reverberation sound, the number of interrelationships between the two ears, reference vibration, sound absorption rate, etc.), auditory characteristics (such as loudness curve, audible range, various hearing senses), etc.

The sound volume is determined by the power of the speaker, and the sound quality is determined by the characteristics of the sound source.

The sound quality of the sound is mainly to measure whether the above three aspects of the sound have reached a certain level, that is, whether the pitch relative to a certain frequency or frequency band has a certain intensity, and is within the required frequency range.

At the same volume, whether the amplitude of each frequency point is uniform, balanced and full, whether the frequency response curve is straight, and whether the pitch of the sound is accurate, which not only faithfully presents the original face of the frequency or composition of the sound source, but also meets the requirements of frequency distortion and phase shift. Signal characteristics of audio equipment such as distortion, frequency response, dynamic range, signal-to-noise ratio, transient characteristics, stereo separation, etc.

As you know, the sound quality of the sound produced by different sound systems is different. Even if the same set of audio, different people's hearing perception is also very different, so it is best not to make objective comparison and subjective comparison at the same time, so we will not talk about subjective feelings in this question, but simply talk about the key links that have a key impact on the sound quality of the sound system.

The reason why it is called a sound system. Then the sound is transmitted to our ears. It is not just done by a single device, it includes the sound source, mixer, processor, power amplifier, speakers, etc. to form a series of systems, although there are individual devices also have parallel phenomenon, but the main audio stream is still carried out in series.

So we can think of a sound system as a rope with a head and an end. There is a popular saying among the people: the rope is broken from the thinnest point.

So which of the equipment in the sound system is the thinnest part of the rope? Of course, it is the device with the worst sound quality and the largest distortion, and the distortion of the sound quality of this device directly determines the maximum distortion of the entire system.

In view of this, the collocation of the system is very particular, the good is good, the bad is almost the same. Don't match the good with the bad with the bad with the bad. Even if you spend money one day to replace one of the devices in the system with a good one.

If you happen to replace the device with the worst sound quality in the system, then it will be good for your overall sound improvement. On the other hand, if you don't replace the one with the worst sound quality in the system, then you may feel that the money is wasted.

Therefore, to determine the sound quality of a sound system, it must be the worst device in this set of equipment.