What does it mean to hear that the newly bought headphones need to be repaired? How?

(2) Radio receiver method: tune to a place where there is no signal, and its noise is also called white noise;

3. Music machine cooking method: Use some music, and the best machine cooking music is Ferry (other music is ok, as long as the volume is not too loud).

The second step is to make the aged earphone (referring to the aging of the mechanical system in the first step) adapt to the sound of various frequencies as soon as possible and emit better sound from the surface. We generally have a preference for listening to music, either high notes or low notes. Even if we listen to everything, some frequencies are rarely used, which is the key to our beautiful voice. The only way is to use the software, select the signal generator, and then put it on for three hours, cook it when you have time, and cook it for ten or twenty times.

The newly bought headphones have good hearing. But compared with my friend's earplugs of the same model, they are always unsatisfactory. The bass is tight and stiff, the midrange is not soft or full, and the treble part is full of burrs. Why is this happening? Because this new earphone hasn't been cooked yet! (3) Method of testing the tone generator of boiling earphone.

In the past, it was very simple to connect the radio directly, tune to the frequency without the radio, and use the "hissing" sound (pink noise) from the radio to make the headphones work for a long time to achieve the effect of the boiler. But this method is not obvious, so it is better to put on headphones and listen to music directly, which is faster. It is also useful to use a special frequency generator to generate a fixed or scanned frequency and then input it into the earphone. This method has obvious effect and can shorten the time. But most players don't have this kind of equipment, what should I do? What is the most efficient way to cook headphones? Today, with the rapid development of computers, many enthusiasts have written some programs to process some waveforms and frequencies through computers and output them through sound cards, so as to achieve the effect of some real frequency generators. This is called "virtual instrument". There are many frequency measuring softwares like this. The author uses a software called test tone generator, which is simple, powerful and compact. Let's talk about how to cook headphones with it.

Cooking machines generally use low frequency. So, just set TTG to low frequency. There are two methods, one is to output at a fixed frequency; The second is to use the scanning frequency. The effect is similar. The method of fixing frequency is to input a numerical value in the frequency of constant tone, generally 20 to 50, or you can choose LOOP. The duration is not important. Sine (sine wave) gain is 0 DB, and then you can plug headphones into the sound card to make it work for a long time.

Sweep frequency method is to input the starting frequency with the starting frequency of sweep frequency and the ending frequency with the final frequency. Generally speaking, I think the range from 20HZ to 100HZ is more suitable. Duration is the time required to set a scan, and then other operations are the same as fixed frequency. Many friends have asked me why I only do low frequency. In fact, we can know why from the boiler principle mentioned above.

Pay attention to two points in the process of cooking: first, you can't work continuously for too long! Because the voice coil has resistance, it will heat up after working for a long time, and it may burn out the voice coil! It's best to stop for a few minutes every two hours and then continue. Second, the volume must not be too high. Earplug diaphragm is a very fragile material. If the volume is high, the voice coil will travel long, which will lead to the voice coil loosening, diaphragm deformation and even tearing. Especially the "fragile" earplugs of 888, you should be careful. When adjusting, it is only necessary to adjust the sound waves or air vibration that can be clearly heard. Don't turn it too much. You can hear the diaphragm vibrating violently. Be careful to protect your headphones.

Finally, I want to emphasize that not all headphones will sound better after cooking, which depends on the quality of the headphones themselves. It is normal for some headphones to have no obvious effect after cooking. The purpose of our cooking machine is to help it quickly pass the aging adjustment period and stabilize the physical characteristics of its components. The vibration system of unheated headphones may be very tight and hard. By cooking, the vibration system can be relaxed and the parameters tend to be stable, so the sound quality will be better. Also, don't think too well about the effect of the cooker. Cooking for a while won't be too effective. The greater the hope, the greater the disappointment. To have a good sound, mainly depends on the sound source and other equipment.

The paragraph I cut here ... there are many ways ... hehe