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Distortion is a frightening word, probably because of its negative meaning. Distortion has always been an important indicator in electroacoustic products.
But what about the true meaning of distortion for enthusiasts? When a signal is transmitted or amplified, it is theoretically impossible to keep it completely unchanged from the original signal. Therefore, from a technical point of view, people always hope that its distortion is as small as possible. However, in recent years, most senior enthusiasts will agree that in terms of hearing, the indicator of distortion does not effectively reflect the good sound of the equipment. As the party said, since the signal is transmitted or amplified, it cannot be kept exactly the same as the original signal. There must be some changes during this period. What is the change? It is nothing more than "plus" and "reduction". The concept of "reduction" is easier to understand, that is, the original signal lost something during the transmission or amplification process.
As for "Gado", there is more complicated content. In simple terms, in the process of transmission or amplification, something derived from the original signal and different from the original signal is derived. Since these are not originally available, they can only be part of the distortion.
In terms of hearing, such derivatives sometimes have magical effects. For example, some new harmonics obviously play the role of MSG, and people who like it will feel that the sound is more musical. Another example is the microphonic effect, which provides an effective means for some enthusiasts to use for tuning. Even Phase Shift, which doesn't sound like good things, can be subtly used to beautify the sound. Adding the excitation effect during the recording process makes the bass impulse stronger and stronger, which is the use of phase shift. Therefore, there is a faction that uses the final listening as a choice. The screaming distortion is harmless, because if the distortion is replaced by "beauty" or "MSG", it is believed that people's resistance to it will be greatly reduced, while the other party is mainly an engineer. But loudly said: "Numbers are better than eloquence" (numbers don't lie).
This kind of debate is protracted. Who is right and who is wrong? Here, we don't need the concept of enthusiasts first, because most people may tend to think that enthusiasts are some geeks who are enchanted. Who will have the biggest influence on the above debate? The answer is people who like audio, this is the English Audiophile, audio enthusiasts. As for who is a sound enthusiast, this has been a lot of controversy. I think this should cover everyone who likes audio technology and listening to music, and shouldn't limit it to a handful of Hi End equipment. I believe that most readers develop audio hobbies, often starting with listening to music, and the first contact or use will be some popular equipment. I still remember to make the ore radio with my older children in the third year. At that time, the music from the crystal earplugs is still unforgettable. Of course, the crystal earplugs can't provide any low frequency, but its mid-frequency transient, and And the performance of the treble is not comparable to the small speaker of the general transistor radio. Although it was later known that the high frequency of AM broadcast was only 7 KHz, even the harmonics would not be as high as 10 KHz, but the simple ore radio of that year started my long history of fever. I still remember listening to their 4th monthly concert to Radio Television Hong Kong many years ago, listening to piano solo in a not too big recording room. The feeling at the time was very good and the sound was natural.
So I thought, how to put two daring in front of the piano, the third hangs high to charge the chord, and adjusts the biliary equipment before mixing... I think very far. But when I returned to the live music, I quickly understood that to reproduce the effect at that time, to regain the feelings of the listeners at the time, I am afraid that humans still have to make great efforts. Speaking of the previous controversy, the fan-based group can be called a subjectivist. They insist that the current understanding and application of distortion is still limited, so the measurement of distortion is not the whole story. As far as engineers are concerned, they can be called objectivists. They insist on using scientific methods to measure and distinguish the advantages and disadvantages of equipment. The reality may indeed be composed of contradictions. The various distortions are discovered and measured, so that people find countermeasures, such as total harmonic distortion. When it is improved, it brings the TIM transient intermodulation distortion; The jitter, being discovered and dealt with, is only a very recent year. As for the two factions, I think there are different pairs of the two, because they are not the same thing. Enthusiasts do not consciously look for their preferences in listening, but engineers try to objectively find the standard for measuring equipment. The answer to this debate is that objective measurement criteria do not determine subjective personal preferences. Some people like the passive predecessor, some people object to it, and all of them have escalated to the abstract nouns such as musical sense. In fact, this is just two kinds of personal preferences, two different subjective positions.
To be honest, what they argued is not the performance of music playback, but the unique tone of the two preamps themselves. After the signal passes through the two, how many "plus" and how many "reductions", if the engineer inserts it, can it be difficult to solve the problem, or it will make the drowning more embarrassing. All of this is up to the reader's own answer.
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