You said that with the battery switch, then it is mostly analog Mike. But whether it's the numbers orIt's a simulation. The long-rod gooseneck mikes are strongly directional, that is, beyond a certain distance, away from a certain range of angles, the mikes can't pick up sound. So, to solve your problem, definitely use the omnidirectional mike, not the directional gooseneck mike.
The best distance for microphone pickup is about 10 cm. Some "leaders" speak far away from the microphone, some singers stick to the microphone, too far resulting in the pickup sound is too small, then such as the volume fader pushed up easily cause whistling; Too close to the speech of the air flow also picked up, issued a "puff" interference sound. 7, do not use the microphone for a long timeChemicals such as agents may cause damage to the surface and housing of the intercom.
2, close distance: When the communication distance of the intercom is a few meters different from the actual need, the machine power and noise level can be adjusted to achieve. When it is still unable to improve after adjustment, it is considered to install a rotary table to solve the problem. Intermittent sound: Intercom communication at the critical distance often found intermittent phenomenon, at this time you can adjust the silence level or cancel the reception of sub-audio to test the effect. Whistling: When the distance is only a few meters or less, the two walkie-talkie communication will roar.
3, the solution: First check the trunk of the car or the rear seat is placedObjects that are not fixed, easy to roll and make sound are eliminated, and some objects are not fixed and make noise. If it is found that the friction of the door and window parts causes abnormal noise, you can paste adhesive strips on the door and window or pad rubber on the friction part, which may reduce or eliminate the abnormal noise, but the result is only a symptom and not a cure.
4, adjust the sensitivity of the microphone: Adjust the sensitivity of the microphone, so that it is only recorded when speaking. This will reduce some of the unnecessary noise and feedback, which further suppresses the ending sound. Set the delay radio function: Delay radio is a kind of speech after the end of the delay for a period of timeDisable the microphone function. This can effectively eliminate the interference of the end sound, and does not affect the listening of others.
5, and the horn is too close to the magnetic field interference. As usual when singing in KTV, the microphone is too close to the speaker, there will be whistling! Simply find a way to keep them far apart. If you are willing to toss, and want to move your own hands, then open the extension (hands-free), and try to adjust the direction and orientation of the speaker or microphone inside.
6, signal interference. Mi 2 walkie-talkie has noise can not hear clearly because there is signal interference, you canTry the effect on a different frequency, or make the frequency subaudio. Walkie-talkie noise solution steps: walkie-talkie sometimes by frequency interference, this time you can change the frequency to reduce noise; The distance between the walkie-talkie is far, and the power of the walkie-talkie is adjusted to reduce noise; You can adjust the silence level of the intercom, or cancel the reception of sub-audio.
2. The first advantage is size and space. The second-generation GS8 is positioned as medium-sized, but the actual size is medium to large. The 2,920mm wheelbase is 7cm longer than the Highlander, and the 4,980mm body is 3cm longer than the XC90. The large size brings a lot of space inside the car. With my height of 178cm, two rows leave two punches, three rows can also get more space for one punch. In addition, the front center counter is 27cm wide. LookIt looks very rich.
3, the new second-generation Trumpchi GS8 shows a unique design aesthetic, equipped with double front grille, of which the "Zhanwei wing" front grille is particularly eye-catching, this test drive model is the use of this design. Its shape is square, the side lines are smooth, and the three straight waist lines outline a strong sense of strength, continuing the classic style of the previous generation of models.
4, in my eyes of the original GS8 owner, the second generation GS8 is really sweet. Up to now, the cumulative sales of the second generation Trumpchi GS8 has exceeded 90,000 units! In order to maintain competitiveness and market heat, 2024 GS8 launched, the interior and configuration have been upgraded, the seat layout has also been adjusted, today we will experience together. 5, in terms of appearance design, the new GS8 sticks to its consistent masculine style, and this unique temperament has been widely recognized in the market. After all, excessive changes can sometimes lead to aesthetic imbalances, and the GS8 avoids this risk by choosing to maintain its original charm.
6, the new second generation Trumpchi GS8 wheel is equipped with the popular black and silver two-color wheel, and the matching tire is Michelin Pilot spoThe rt4 tires, 255/50 R20, have excellent grip and good silence.
1, the reason why the radio teaching loudspeaker always makes a noise is: there is poor contact at the plug of the audio input; The internal resistance of the power supply has increased; It's external electromagnetic interference. A teaching megaphone is a loudspeaker mainly used by teachers to give lectures. At present, it is divided into two categories, one is waist-mounted and shoulder-mounted teaching loudspeakers, and the other is wireless teaching loudspeakers.
2, when the coil in the speaker is energized, the coil will produce a magnetic field, in the magnetic field interaction with the magnet, the coil will vibrate, vibration will sound, is the force of the conductor in the magnetic field. When the AC audio current passes through the coil (voice coil) of the speaker, a corresponding magnetic field is generated in the voice coil. This field interacts with the magnetic field generated by the permanent magnet on the speaker.
3, in essence, there is no difference, both sound waves are converted into electrical signals, and then emitted with high-frequency radio waves. After receiving the demodulation amplification, the receiver pushes the speaker to work. Frequency phaseSimilarly, if the modulation method is the same, the wireless microphone used on the stage can replace the microphone of the amplifier used in teaching (commonly known as the small bee).
1, good. The party house uses rechargeable wireless microphones for longer battery life and is more environmentally friendly. Built-in FM frequency modulation technology, provides module frequency selection and separate frequency selection two modes, can effectively suppress the noise, crosstalk frequency, cut frequency and other interference problems, with the open, so that users sing more comfortable and better listening.
2. Good. Although it is a domestic brandBut the sound quality is quite good. Its bar box through the built-in 13 solid units to achieve multi-dimensional sound, including 3 tweeters and 10 woofers, the back of the box only one interface and subwoofer connection, other input interfaces are integrated in the 10-inch subwoofer, equivalent to the subwoofer as the control center of the entire system, Dolby Panoramic sound and DTS: X and other audio formats are decoded by it and then transmitted to the bar speaker.
3, the party house 780 effect is good. Party House 780 is a classic product of party house, independently developed 2×DSP digital processing technology, music, microphone tone adopts 7Segment equalizer adjustment, low cut point adjustable. Party House 800 is produced by Xiamen Party House Electronics Co., LTD. It adopts the most classic numerical control analog circuit technology, independently developed dual DSP digital processing technology, music, microphone tone adopts seven sections of balanced adjustment, microphone low cut frequency point adjustable.
4, the choice of wireless microphone, such as AVK-815, to ensure the high quality of the karaoke experience. Through the anti-interference 8GHz band, the wireless connector provides greater signal stability. At the same time, the system also supports wall mounting, not only limited to the living room theater. In terms of sound performance, the Queen series is enhancedIt shows the characteristics of full mid-frequency and abundant low-frequency, whether it is watching movies or playing music, it can provide immersive experience.
5, Dihua Ao microphone is good. Di Hua Ao (DVON) is a relatively good brand in China, the sex price is also high, and many performance companies are using it. 6, the party house ph12 speaker is good, it uses the most classic CNC analog circuit technology, independent research and development of dual DSP digital processing technology, music, microphone tone using seven balanced adjustment, microphone low cut frequency point adjustable, anti-whistling technology.
This thermal noise can be dealt with by replacing low-noise components or reducing the workload of components, reducing the operating temperature is also one of the effective methods.
Make the sound from the speaker not easily transmitted to the microphone to reduce the phenomenon of whistling: The microphone is far from the speaker This method is difficult to achieve in the ballroom, because the area of the ballroom is generally not large. However, in a theater or large performance venue, this method can be useful, for example, consider hanging the microphone above the band or stagePickup, so as to ensure that the microphone is close enough to the sound source, but also to keep the microphone and the speaker as far away as possible.
First use the wired microphone to try to see if the sound is normal, if normal, it is the wireless microphone is faulty.
Solution: First, the signal frequency input to the front two speakers are adjusted to the middle position. Turn down the volume of the first two speakers. Or replace a more powerful speaker. 3-2 Whistling is manifested as; Sometimes there was a sudden, constant murmur, louder and sharper. Change the direction of the microphone or completely cover the microphone with your hand, and the noise will disappear. According to your complaint, it's possible, but unlikely.
High-frequency squeaking is because the horn sound is input into the microphone, causing sound feedback and resulting in high-frequency whistling. Pay attention to the positive direction of the speaker is best not to stand the singer, in order to avoid the appearance of acoustic feedback phenomenon. There are only two possibilities, either there is a problem with the MIC's shielding ground line, or the feedback causes whistling, how big the house is, turn down the sound a little.