A friend who has just touched the sound, will definitely feel that the sound is really like magic, sometimes? Power processing can affect the sound, changing a line will affect the sound, even the pad on different materials will affect the sound. These statements sound amazing, even if a friend with a keen sense of hearing can easily distinguish the difference in sound produced by these changes, this is really amazing! In the end, what kind of magic is the sound?
In the field of electrical signals, we have already discussed that the current environment is full of high-frequency pollution (EMI, Electromagnetic Interference, whether it is conduction or radiation), such as mobile phones, computers, wireless networks, etc., in the high frequency of MHz or even GHz. It's very easy to feed into the sound system and then modulate it with the audio signal, causing an audible sound change.
Therefore, power supplies, wires, and other passive components such as capacitor resistors and inductors, such as wires, do not show any difference in instrumental testing within the audio range. In fact, the factor that really affects the sound is its "frequency characteristics". It has components that can filter unnecessary high-frequency characteristics, usually leading to purer and better sound performance, because it reduces the modulation of high-frequency noise for the audio range. phenomenon.
Then, why can non-electrical signal fields, such as casing materials, mats, and even anything on the equipment, change the sound? This is interesting. All the equipment, whether it is a speaker or an amplifier, a player, etc., will be affected by the music being broadcast and vibrate when playing music. It's very simple. As long as you reach out and touch the equipment while playing music, you probably feel the vibration caused by the sound waves.
But vibration is not an electrical signal. Why does vibration affect sound? This is going back to the circuit structure, which is composed of links of various components. The early circuit used to solder and support the components, which is commonly known as the "schedule"; the modern circuit uses a printed circuit board to insert the components. The circuit board is soldered and connected to the circuit through a printed circuit on the board.
When the equipment vibrates due to the sound waves, the components in the circuit will also vibrate, in addition to the vibrations generated by the components themselves (such as transformers), the hidden cloth/stray capacitance between the components will be due to the components. The change in the distance caused by the vibration changes; although the change in the capacitance of these submersibles is small, it will affect the electrical signal and modulate the signal. This phenomenon is called the "microphonic effect".
Among all the electronic components, the most obvious effect of the microphone is the "vacuum tube". The vacuum tube assembly is bulky but "hollow" (the same large components such as capacitors are solid), and they are all structures that are easy to vibrate. The microphone effect is very obvious. As for other solid-state component circuits, although the relative effects are less obvious, the effect of the microphone effect cannot be avoided.
Microphone effect In industrial equipment or military equipment operating in some vibrating environments, there are clear specifications and countermeasures to avoid vibration and noise on the operation of the circuit. Therefore, vibration in the sound system will affect the sound is not "metaphysics" but based on evidence, but the microphone effect will not cause damage under normal listening conditions, so manufacturers and consumers generally do not pay attention.
However, the sound players who pay attention to the sounds will not let go of these details. The pads of different materials under the equipment can really change the resonance, so you can adjust the sound. Even pressing on the material above the device can suppress/change the resonance and reduce the rendering of the sound caused by vibration. Of course, it is also possible to increase the vibration of a certain form, and it is not necessarily to increase the rendering of the sound.
Just the effect of vibration on the tone does not have any basis for testing. Any attempt can only be determined by the final audition. In addition, the different positions of the mat under the equipment will also affect the resonance pattern. Of course, the difference in sound performance will also be caused. In this part, only the user himself tries to record the influence of the position of different mats on the sound. Choose the sound that suits your preference and the way the mat is placed.
Some tuning products pressed on the top of the equipment are based on the same principle, but the weight is used to suppress the vibration or change the shape of the vibration; on the other hand, the heavier the weight of the equipment itself, the less obvious the microphone effect is. Of course, there are exceptions that cannot be generalized. To put it another way, the audio equipment is really like a musical instrument. If you want to show the best sound performance, you still need some "Tuning". Whether it is electrical or mechanical vibration, you still need us. Use your heart to be right.
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