Principle of Burning Machine
The process of burning headphones is mainly to allow the mechanical system of the headphones to undergo rapid aging to a level of running-in. The sound system of dynamic headphones is driven by the voice coil to drive the diaphragm, and the diaphragm is fixed on the earphone shelf. Theoretically speaking, the movement of the diaphragm should be a piston (vertical) movement, which requires greater compliance on the edge of the diaphragm. The pot is here. The sound of the new headphones will be clearly felt (dry, cold, hard), high frequencies have burrs, and low frequencies are loose and not condensed with obvious back noise. The main reason is that the edge of the diaphragm of the new headset is relatively tight, with large elasticity and low compliance. After a period of burn-in, the diaphragm fold ring will be impacted by the pressure of sound and air, and the diaphragm fold ring will shrink. It will become more elastic. As the elasticity of the diaphragm fold ring becomes better, the direct effect is that the sound details are richer, the sound is smoother, the human voice is more mellow, and the high-frequency burr will be significantly reduced. Or directly reach the burr-free state, the low frequency will obviously converge a lot, becoming more elastic and cohesive. Reduce the back noise and improve the purity of the low frequency. These are the obvious changes in the sound of the earphones after being burned. Some of the components in the newly purchased earphones, such as transistors, integrated circuits, and capacitors, are unstable when they are brand new, and will gradually stabilize after a period of use.
General burn-in method
"Blow-in" means that the stability of sound quality requires a period of use. If you listen for 1 hour a day, the sound will basically stabilize after about 4 to 5 months. Then these 4 to 5 months are the "machine burn-in" period. Proper burn-in will not damage the earphones, but will only accelerate the stability of the sound quality. The word "stable" is used here instead of "improvement". Some headphones (speakers) may not be better than brand new ones.
For headphones, the following cooking method can be used:
1. Use pink noise or white noise as signal source
2. In the initial stage, continue to boil for 24 hours at normal volume
3. Stop for 4 hours
4. Use loud volume (just unbearable for ears) for 8-12 hours
5. Stop for 4 hours
6. Boil for 24 hours at normal volume
7. Repeat the above, the headset will be "cooked" after about a week
Pay attention when you burn the phone. If you are not sure whether the volume is too loud, ask someone to help you listen. If you can’t hold on for 10 seconds with headphones (not for preference reasons), then the volume will be too loud.
Professional burn-in method
The burn-in first needs sound software, and the relevant CD-ROMs are prepared, so that the burn-in process can begin. It would be great if you can find the pink noise to scan the CD track at full frequency. If it is not, then you need to download a frequency generator to perform it on the computer. This frequency sounder can manually set the frequency range, scan time, and select The type of sound waveform is square wave, sine wave, triangle wave, etc. In short, the frequency range of sound must be guaranteed between 20Hz~20KHz. When a full-frequency scan is performed, the full-frequency cycle of the scan needs to be extended as much as possible. It is recommended The setting time for full channel scan is at least 30-40 seconds or more. If you are using a full-frequency scanning CD, it is best. After inserting the CD, select the track and repeat the track. If there is no repeat playback function, you need to press Repeat repeatedly to repeat the playback. Generally, the total volume is Adjust the adjustment knob to between 40%-60%. Taking into account that everyone’s ears have different sensitivity to the spectrum, it is recommended that the volume should be the best and comfortable for human ears, and it should not be too high or too small. This is unfavorable. Considering the safety of earphones or speakers, you can listen to whether the speakers or earphones are overloaded when the highest and lowest frequency points are sounded before playing, so as to avoid damage to the equipment. You can proceed after confirming that it is correct.
In general, the theory of deliberate burn-in and professional burn-in is not recommended. It is hoped that users can use non-professional users to listen to the burn-in method naturally, because the music of non-professional users is often in many styles and types, so natural listening to the burn-in method is a better method. suitable method. The natural listening method means that after the new earphones are in hand, the volume is kept below 60% and 30% or more and you can listen slowly (the specific volume matching is based on the human ear in a quiet or noisy environment to choose the best comfortable hearing) In such a natural listening environment, the headphones or speakers can be honed for a month or so to make the equipment reach a better state. Naturally listening to the burn-in method is also to make the earphone or audio hardware in the best and safe state to burn the machine, which will not only not damage the hardware of your device, but also extend the life of your device.
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