1. Speaker sound feedback:
When listening to the sound, the sound waves emitted by the speakers will vibrate the walls, the roof and the ground, and some even directly or indirectly impact the audio equipment. These vibrations are transmitted through different channels; for example, audio racks, air, etc., with different speeds and strengths. The feedback to the equipment causes the equipment to vibrate and generate its own resonance, which causes the sound system in operation to produce subtle changes in the electronic flow of the electronic circuit to change the sound, causing the sound to be slightly blurred and causing slight distortion.
2. Resonance characteristics of the environment:
The object has its own resonant frequency according to the material, shape and size. When the external vibration energy is applied to the object, if the frequency is equal to or close to its resonant frequency, the object will vibrate synchronously to become a resonance.
The resonance of the listening environment is more complicated. If the music frequency is close to the natural frequency of the room, resonance will occur. If the spectrum test analyzer is used for testing, the frequency response characteristic curve of the room will be undulating like a dragon dance, no matter the audio equipment you use. How advanced, will be subject to the acoustic characteristics of this room. Resonance is harmful in most cases; it increases noise and accelerates fatigue damage to the equipment.
3. External vibration factors:
If the listening room is adjacent to the roadside, factory, construction site, elevator room, pump house, etc., it is very susceptible to noise or ultra-low frequency interference, and the sound equipment is blurred due to vibration.
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