Vocal resonance, ask for help When singing mid bass resonance is not enough, ask for help。。。。。。

I said, people are generally the more high-pitched resonance is more difficult to control, you are a reverse example, the so-called resonance simply refers to when singing, the vibration of the body organs in the gas makes the vibration appear in no part of the body, so as to make the sound more saturated, and chest resonance is indeed a way to sing a good song, if you feel that the appeal is not enough treble, then it may be that you pay too much attention to the chest and ignore the nasal cavity and cranial cavity when singing the middle and low tones, if it doesn't work anymore, That teaches you a method, imitation, if you feel that your treble is more resonant, then sing the treble first, in the process of singing, you can remember your resonance, pronunciation and breath when singing the treble, and then go back to the middle and bass, with the feeling of singing the high note to sing the middle bass, just use it slowly.

This one... It's too professional, and the situation of people who don't use it is different, so it's better to find a good teacher to teach.

Causes of low-frequency noise in cars:

1. Engine car noise problem: the vehicle engine is one of the most important car noise, and its mechanical noise is different with the different engine speed (mainly through: front fenders, hoods, fire retaining walls, exhaust pipes to produce car noise transmitted to the cabin).

2. Road noise car noise problem: road noise is generated by the vehicle when the wind cuts into the car noise and the chassis vibration driven by driving at high speed, and the road noise noise generated by the impact of sand and gravel on the road chassis of the car will also be generated, which is the main road noise (mainly through: four doors, trunk, front fenders, front wheel arc to produce car noise transmission in the compartment).

3. Tire noise car noise problem: tire noise is caused by the friction between the tire and the road surface when the vehicle is driving at high speed, depending on the road conditions and tread to determine the size of the tire noise, the worse the road condition, the greater the tire noise, and the tire irritability generated by the asphalt road and the concrete road surface is very different (mainly through: four doors, trunk, front fenders, front wheel arc to produce car noise transmitted to the compartment).

4. Wind noise car noise problem: wind noise refers to the pressure of the oncoming wind in the process of high-speed driving of the vehicle through the sealing resistance of the door into the car, the faster the driving speed, the greater the wind noise noise (mainly through: the four-door sealing clearance, including the overall thin sheet metal generated by the car noise transmission compartment).

5. Resonance noise and other car noise problems: the car body itself is like a box, and the sound itself has the nature of refraction and overlapping, when the sound is transmitted into the car, if there is no sound absorption and sound insulation material to absorb and block, the noise will continue to refract and overlap, forming a resonant sound (mainly through: noise into the car, superposition, reflection generated).

The best solution to solve the low-frequency noise of the car:

1. Sound insulation and shock absorbing adhesive: Metal and plastic sheets are used in the manufacture of every car, which resonates during driving, causing a lot of low-frequency noise.

The original car factory will also deal with some vibration sound sources, but it is far from enough, so whether it is a high-end car or a low-end car, there are no installation and shock absorption materials.

2: Sound Reduction and Heat Insulation Cotton: When the car is driving at high speed, the car body itself produces resonant sound, and high-efficiency sound insulation cotton is installed for sound reduction and noise reduction treatment.

Three: sound insulation: due to the thin metal and plastic plates of low-end cars, resulting in external noise, the installation of sound insulation thickened plates to block noise.

According to your description, you don't have to think about it now, and you can't do it, so you can practice your breath first.

The most direct way to resonate the door is to do sound insulation, a layer of shock absorbers inside and outside, and a layer of sound insulation cotton in the middle can be a good solution, it is best to go to a professional store to do it, if you understand it, you can also install it yourself.

Install shock-absorbing rubber pads at the junction between the speaker and the door, and the door core panel should be installed tightly and firmly.

It can only be done for sound insulation treatment to solve the resonance problem.

1. The engine has abnormal noise.

Symptom description: There is a lot of abnormal noise in the engine compartment, and most people also judge it to be the abnormal noise of the engine compartment by the sound**, which is usually a metal screeching sound or a howling sound.

Solution: The abnormal engine noise indicates that the technical status of a certain mechanism of the engine has changed. It is mainly caused by excessive wear and tear of some parts or improper assembly and adjustment.

Some abnormal noises can still predict that the engine will be damaged accidentally, so when the engine has abnormal noise, it should be repaired in time to prevent the fault from expanding.

It should be reminded that if it is an abnormal noise in the engine, most of the owners will not be able to solve it by themselves, and it is best to send it to the factory for maintenance.

2. There is abnormal noise in the gearbox.

Symptom description: If there is a "rustle" sound inside the gearbox while the car is driving, and there is no more after pressing the clutch or accelerator, there will be a whistle-like sound when changing gears.

Solution: There are many transmission parts, and the reasons for the sound are more complex, so we should pay attention to whether it is related to a specific speed, such as some planetary teeth that sound at about 50km h.

Whether it is related to certain gears, which is very important for judging the failure of the transmission, if a certain gear sounds, it must be related to the components that affect the transmission of the gear; If all gears sound, it is often a common meshing shaft failure or a lack of oil in the transmission. Whether it is related to specific actions, such as increasing and decreasing gears, starting, rapid acceleration, sharp deceleration, turning, etc., are effective means to judge abnormal noise, among them, changing speed and direction are particularly important for judging the rear axle fault.

If the abnormal noise of the transmission is obvious, it is recommended to send it to a professional repair shop to check the faulty parts, and then replace them.

3. There is abnormal sound of wear.

Symptom description: When driving on the accelerator or brake, there is always some abnormal noise in a certain part of the body, the sound is not loud, and it does not affect normal driving, but it always makes people worry a little about the failure of the body.

Solution: The abnormal noise of the door is mainly caused by the lack of lubrication, but it is necessary to judge whether it is the position of the door hinge or the glass regulator, door lock mechanism, handle mechanism, etc. inside the door. In the case of door hinges or limiters, special door hinges and slide grease can be used, while special door attachment grease is used for lubrication of glass regulators, door locking mechanisms, handle mechanisms, etc. inside the door. In terms of brand selection, try to choose the commonly used brands in 4S stores, such as German Marty, Kluber, Tiger Head Hotolube, Fox, etc.

It is not advisable to use engine oil or ordinary butter, it will freeze in winter, and the harmful smell will affect your health.

Checking the glasses case, mine just found that the glasses case resonated, and now it's full of stuff.

I'm also in March '10, and the car situation is exactly the same as yours.,There's no solution.。

Sometimes when I go out of the community, I feel that there is a resonant sound in the direction of the dashboard, but I always ignore it.

Causes of body shake when the car accelerates:

1.It is normal for the car engine to shake when driving, and sometimes it will not start once. It may be that the throttle valve is too dirty, and the fuel injector and air intake tract have too much carbon deposit.

In the case of a cold car, carbon deposits will absorb a part of the fuel, and if the fuel does not completely enter the cylinder for combustion, it will produce symptoms of unstable idle speed and difficulty in starting.

2.At a certain speed at high speeds, the steering wheel can feel noticeable shaking or jumping, but not at low speeds. In fact, there are many problems that cause automobile engine shaking, here we must first rule out the abnormal shaking caused by engine failure, because engine failure generally occurs at low speed.

How to shake the body when the car accelerates:

If the acceleration shake of the car is obvious, you can first visually check whether the balance lead on the rim is missing, or whether the wheel hub is obviously deformed. If all of the above is a problem, then we need to resort to professional inspection equipment, because the steering rods, suspensions, and subtle deformations of the wheel hub are difficult for us to discern with our eyes. First of all, check whether the left and right half shafts are bent, and then disassemble and check whether the inner walls of the left and right inner cages are worn and pitted, which is caused by damage to the inner cage in most cases.

Modern cars are mostly front-engined and front-driven, and their inner cages are mostly retractable to adapt to the change of the relative position of the gearbox drive terminal and the drive wheel when the vehicle is driving. After dismantling and inspection, it can be found that the part of the inner wall of the inner cage that is in constant contact with the outer skin of the needle roller bearing, that is, the part where the torque is transmitted (the stress point), has produced pits. When the vehicle accelerates sharply, the engine gearbox assembly has to do a slight side flip action, thereby changing the position of the above-mentioned stress point, because there is a certain angle between the axial direction of the half shaft and the axial direction of the inner ball cage, so this stress point is continuously reciprocating along the axial direction in the process of ball cage rotation, and the force generated by this change continuously pushes the body to the left and right sides, that is, the feeling of above-mentioned "sieving chaff" occurs.

Replace the damaged inner cage or half shaft.

This may be caused by the loosening of some parts behind the central control, it is best to go to the 4S store to test it, you can refer to it.