How does the sensitivity affect the pickup quality?
2023-08-16 12:12:23
To understand the effect of sensitivity on the quality of pickups, we must first understand what is the sensitivity: sensitivity refers to the output voltage or electric power under the action of unit sound pressure, which reflects an indicator of the sound and electricity conversion capability of the pickup. In addition, there are various ways to express sensitivity. The method adopted in our country is expressed in dB. This standard is to achieve the default 0dB=1V/Pa@1KHz, that is, to output 1V(rms) voltage under 1KHz frequency and sound pressure intensity 1Pa. , Sensitivity is 0dB and commonly used by domestic and foreign microphone microphone manufacturers, in the order of -40dB, -30dB, -10dB, 0dB, +10dB, the sensitivity gradually increases. In addition, some people mistakenly believe that the sensitivity refers to the smallest sound signal that can be picked up, so the smaller the value is, the more negative it is. The sensitivity is even higher. In the bidding documents, even if the sensitivity is less than a certain value (such as ≤ -30 dB), it is wrong.
The common microphone microphone head has three kinds of moving coils, pure capacitors and electret capacitors. Dynamic and pure condenser microphones have no amplification circuit. The sensitivity reflects the performance of the microphone microphone to some extent, and the sensitivity and performance are good. Electret condenser microphone microphone head is a capacitive type, internal FET signal amplifier circuit, its sensitivity is not related to the performance is good or bad, just a product specification parameters, sensitivity error accuracy (consistency) than the absolute value more important.
Noise ratio effect on the quality of <br> <br> pickups for pickups to maximize the reduction of noise it can better display quality! First, the pickup is not recommended switching power supply, the general use of professional 12V DC Power Supply. You can use a professional power supply or adapter to supply power. Once the audio cable is connected to other audio devices, disconnect it and connect it directly to a walkman or a computer-used active speaker for testing. If the noise disappears indicating that there is no problem with the listener itself, then the connected audio device or other aspects need to be checked.
In addition, check whether the noise is caused by the sound self-excitation: the listening speaker must not be too close to the pickup, try not to test in the same room. Due to the high sensitivity of the monitor head, the sound of the speaker's feedback to the monitor's microphone will inevitably cause the sound to spur. The same room needs monitoring and headphones can be used. When wiring, it is best to route the cables separately. Do not use the same cable tray with strong AC power, and try to keep away from strong electromagnetic interference devices such as transformers and luminaire rectifiers, thus effectively avoiding external interference.
Finally, check whether the volume of the monitor's sound gain potentiometer or amplifier is adjusted properly. Some brands of audio distributors do not have high quality, which can lead to boring sounds, cracking, etc. Please use high quality dispensers or our own monitor adapters. The high-fidelity pickups from Ericsson's audio won't happen!
Power is also a great influence on the quality of pickups
Switching power supply operating mode: As the name suggests, the switching power supply is the use of electronic switching devices (such as transistors, field effect transistors, SCR, etc.), switching power supply and circuit diagram through the control circuit, so that the electronic switching device is constantly connected “Off†allows the electronic switching device to pulse-modulate the input voltage to achieve DC/AC, DC/DC voltage conversion, as well as adjustable output voltage and automatic regulation. Compared with the linear power supply, the more effective working process of the switching power supply is through “choppingâ€, and the duty ratio of the pulse is adjusted by the controller of the switching power supply. Once the input voltage is split into an AC square wave, its amplitude can be increased or decreased by the transformer. By increasing the number of transformer secondary windings, the output voltage can be increased. Finally, these AC waveforms are rectified and filtered to obtain the DC output voltage.
The main purpose of the controller is to keep the output voltage stable and its operation is very similar to that of a linear controller. This means that the controller's function blocks, voltage references, and error amplifiers can be designed to be the same as linear regulators. What makes them different is that the error amplifier's output (error voltage) passes through a voltage/pulse width conversion unit before driving the power tube. During the use of the power supply, many users also asked how to distinguish between switching power supply and linear power supply. In fact, most domestic security markets are not marked, but they are also difficult to distinguish in appearance (they are different ways of working) so it is best to ask the seller. Under normal circumstances, businesses will not hide. But also because of their different working principles, the switching power supply chip is much cheaper than the ordinary linear power supply, so it is also a 50W power supply. The switching power supply is much smaller than the ordinary linear power supply, and it is much cheaper. Elitat Audio recommends users here, if you want to save trouble recommending the use of high-fidelity pickups from Elite, it is a good guarantee that the power supply will have minimal impact on the pickup.
Everyone must pay attention to these aspects when they understand and detect the quality of the pickups. They can choose high quality products and have a high price/performance ratio. At the same time, they recommend high-fidelity pickups from Ericsson Audio, our product technology and after-sales service. Will make you satisfied!
The common microphone microphone head has three kinds of moving coils, pure capacitors and electret capacitors. Dynamic and pure condenser microphones have no amplification circuit. The sensitivity reflects the performance of the microphone microphone to some extent, and the sensitivity and performance are good. Electret condenser microphone microphone head is a capacitive type, internal FET signal amplifier circuit, its sensitivity is not related to the performance is good or bad, just a product specification parameters, sensitivity error accuracy (consistency) than the absolute value more important.
Noise ratio effect on the quality of <br> <br> pickups for pickups to maximize the reduction of noise it can better display quality! First, the pickup is not recommended switching power supply, the general use of professional 12V DC Power Supply. You can use a professional power supply or adapter to supply power. Once the audio cable is connected to other audio devices, disconnect it and connect it directly to a walkman or a computer-used active speaker for testing. If the noise disappears indicating that there is no problem with the listener itself, then the connected audio device or other aspects need to be checked.
In addition, check whether the noise is caused by the sound self-excitation: the listening speaker must not be too close to the pickup, try not to test in the same room. Due to the high sensitivity of the monitor head, the sound of the speaker's feedback to the monitor's microphone will inevitably cause the sound to spur. The same room needs monitoring and headphones can be used. When wiring, it is best to route the cables separately. Do not use the same cable tray with strong AC power, and try to keep away from strong electromagnetic interference devices such as transformers and luminaire rectifiers, thus effectively avoiding external interference.
Finally, check whether the volume of the monitor's sound gain potentiometer or amplifier is adjusted properly. Some brands of audio distributors do not have high quality, which can lead to boring sounds, cracking, etc. Please use high quality dispensers or our own monitor adapters. The high-fidelity pickups from Ericsson's audio won't happen!
Power is also a great influence on the quality of pickups
Switching power supply operating mode: As the name suggests, the switching power supply is the use of electronic switching devices (such as transistors, field effect transistors, SCR, etc.), switching power supply and circuit diagram through the control circuit, so that the electronic switching device is constantly connected “Off†allows the electronic switching device to pulse-modulate the input voltage to achieve DC/AC, DC/DC voltage conversion, as well as adjustable output voltage and automatic regulation. Compared with the linear power supply, the more effective working process of the switching power supply is through “choppingâ€, and the duty ratio of the pulse is adjusted by the controller of the switching power supply. Once the input voltage is split into an AC square wave, its amplitude can be increased or decreased by the transformer. By increasing the number of transformer secondary windings, the output voltage can be increased. Finally, these AC waveforms are rectified and filtered to obtain the DC output voltage.
The main purpose of the controller is to keep the output voltage stable and its operation is very similar to that of a linear controller. This means that the controller's function blocks, voltage references, and error amplifiers can be designed to be the same as linear regulators. What makes them different is that the error amplifier's output (error voltage) passes through a voltage/pulse width conversion unit before driving the power tube. During the use of the power supply, many users also asked how to distinguish between switching power supply and linear power supply. In fact, most domestic security markets are not marked, but they are also difficult to distinguish in appearance (they are different ways of working) so it is best to ask the seller. Under normal circumstances, businesses will not hide. But also because of their different working principles, the switching power supply chip is much cheaper than the ordinary linear power supply, so it is also a 50W power supply. The switching power supply is much smaller than the ordinary linear power supply, and it is much cheaper. Elitat Audio recommends users here, if you want to save trouble recommending the use of high-fidelity pickups from Elite, it is a good guarantee that the power supply will have minimal impact on the pickup.
Everyone must pay attention to these aspects when they understand and detect the quality of the pickups. They can choose high quality products and have a high price/performance ratio. At the same time, they recommend high-fidelity pickups from Ericsson Audio, our product technology and after-sales service. Will make you satisfied!
Stainless Steel Reducing Tee ,Stainless Reducing Tee,Tri Clamp Reducing Tee,Steel Reducing Tee
Zhejiang Jndia Pipeline Industry Co., Ltd. , https://www.jndiapipeline.com