A variety of high-fidelity noise-reducing pickups terminology is not very familiar to the average user. Today, Elitish Audio Xiaobian and everyone explain what we do not know! In the monitoring project, audio recording is increasingly important Recording the image of a certain road also requires recording the sound of the scene. Both the image and the sound must be reproduced to better restore the real scene. Elitt pickups solve all noises for you.
What is a pickup? What kind of occasion do we use pickups?
As the ear in the surveillance system, the role of the pickup is simply to convert the sound signal into an electrical signal and store it when necessary.
It can be a purely on-site monitoring occasion, then the most representative is the intercom microphone for the window, like the current airport, subway, examination room, the political and legal department, the front desk monitoring of various units, etc. For the common pure pressure Cards, basically audio and video, soft pressure card also introduced a lot of audio and video products, security departments require more and more recording of sound;
Or some important venues will use the most efficient pickups; and the use of audio monitoring equipment is more purely for the recording of live sound, such as an independent sound recording in the interrogation room, of course, this needs to be used with the recording equipment in the field. These are relative requirements that will be more stringent, and less stringent occasions can use the voice recording function of a telephone recording card or a USB recording box to perform live recordings. The audio line of the pickup can be used instead of the telephone.
What does it mean that high fidelity pickups must be high fidelity?
The first is to understand the word high fidelity, which first appeared in the speaker system. What is the significance of that? Since it is a high-fidelity word used in audio equipment, what kind of standard is used to determine the sound system is a high fidelity? Here is a clear definition, the so-called high-fidelity audio system is guaranteed The real sound of the sound source is still the sound of the live performance. In accordance with the original meaning of the hi-fi system, it guarantees the authenticity of the live performance. That is, the program played through the high-fidelity system should have the same or almost the same effect as the live performance. However, to achieve the effect of live performance, it is not enough to pay attention only to the playback. The entire process of live performance, program recording, program source production, and playback must meet the high fidelity technical requirements, including The necessary modification of the signal during playback. To evaluate the fidelity of a hi-fi audio device, although it stipulates a number of quantified technical indicators, such as frequency response, distortion, transient response, and signal-to-noise ratio, they are only intended to verify the fidelity of the device. Measurable indicators that should be achieved. By examining these indicators, you can indirectly know how close the signal played by the device is to the live performance or how different it is. A good set of high-fidelity audio, it plays very close to the performance of live performance.
In addition, one of the fidelity indicators for one of the main components of a sound system is the frequency response. Almost all power amplifiers have frequency response characteristics that are not completely flat, that is to say, they do not give the same amplification to the frequency components of the audio signal, especially at high and low frequencies. . In order to adjust and correct this imbalance, a multi-band frequency equalizer is set in the sound system.
Go to a concert. The excitement of a friendly person is not only due to the beautiful music melody, but also the liveness of playing and singing. However, recording programs distributed through the sound system often make people feel monotonous and boring. This, among other things, is an important reason that during the recording and playback of programs, all music signals must be "crowded" and interfere with each other through a signal channel. therefore. In modern hi-fi systems, besides the two-channel stereo system, there are multi-channel stereo, surround sound, and digital delay circuits for enhanced presence and various live audio processing circuits. These circuits in addition to restoring the effects of the scene. There is also an additional artificial effect. But whether it is to restore the effect of the scene or add new effects. Its purpose is always to maximize the use of recorded programs that are played through the audio system, to approach and achieve live performances and vocals.
What kind of product can be called a high-fidelity pickup?
High-fidelity pickups only say that the pickup device requires more stringent performance parameters and is a relatively more advanced pickup device. In general, pickups can be divided into many categories and can be divided according to different parameters. So how to distinguish the sound of the pickup, one of the important parameters is fidelity. The so-called fidelity means that the pickup can record the desired sound as accurately as possible, and can restore the sound with a very high degree of authenticity. If such a requirement can be met, the pickup is generally called a high-fidelity pickup. Therefore, high-fidelity pickups do not refer to a certain type of product, but rather a classification of performance and performance.
It is hoped that through these simple introductions to the pickups, we can clearly recognize that some related technical indicators can better select the products when they need to be used or when they need to be purchased. Elit Audio offers high-quality noise reduction pickups. , We have professional R & D personnel, technology is guaranteed!
What is a pickup? What kind of occasion do we use pickups?
As the ear in the surveillance system, the role of the pickup is simply to convert the sound signal into an electrical signal and store it when necessary.
It can be a purely on-site monitoring occasion, then the most representative is the intercom microphone for the window, like the current airport, subway, examination room, the political and legal department, the front desk monitoring of various units, etc. For the common pure pressure Cards, basically audio and video, soft pressure card also introduced a lot of audio and video products, security departments require more and more recording of sound;
Or some important venues will use the most efficient pickups; and the use of audio monitoring equipment is more purely for the recording of live sound, such as an independent sound recording in the interrogation room, of course, this needs to be used with the recording equipment in the field. These are relative requirements that will be more stringent, and less stringent occasions can use the voice recording function of a telephone recording card or a USB recording box to perform live recordings. The audio line of the pickup can be used instead of the telephone.
What does it mean that high fidelity pickups must be high fidelity?
The first is to understand the word high fidelity, which first appeared in the speaker system. What is the significance of that? Since it is a high-fidelity word used in audio equipment, what kind of standard is used to determine the sound system is a high fidelity? Here is a clear definition, the so-called high-fidelity audio system is guaranteed The real sound of the sound source is still the sound of the live performance. In accordance with the original meaning of the hi-fi system, it guarantees the authenticity of the live performance. That is, the program played through the high-fidelity system should have the same or almost the same effect as the live performance. However, to achieve the effect of live performance, it is not enough to pay attention only to the playback. The entire process of live performance, program recording, program source production, and playback must meet the high fidelity technical requirements, including The necessary modification of the signal during playback. To evaluate the fidelity of a hi-fi audio device, although it stipulates a number of quantified technical indicators, such as frequency response, distortion, transient response, and signal-to-noise ratio, they are only intended to verify the fidelity of the device. Measurable indicators that should be achieved. By examining these indicators, you can indirectly know how close the signal played by the device is to the live performance or how different it is. A good set of high-fidelity audio, it plays very close to the performance of live performance.
In addition, one of the fidelity indicators for one of the main components of a sound system is the frequency response. Almost all power amplifiers have frequency response characteristics that are not completely flat, that is to say, they do not give the same amplification to the frequency components of the audio signal, especially at high and low frequencies. . In order to adjust and correct this imbalance, a multi-band frequency equalizer is set in the sound system.
Go to a concert. The excitement of a friendly person is not only due to the beautiful music melody, but also the liveness of playing and singing. However, recording programs distributed through the sound system often make people feel monotonous and boring. This, among other things, is an important reason that during the recording and playback of programs, all music signals must be "crowded" and interfere with each other through a signal channel. therefore. In modern hi-fi systems, besides the two-channel stereo system, there are multi-channel stereo, surround sound, and digital delay circuits for enhanced presence and various live audio processing circuits. These circuits in addition to restoring the effects of the scene. There is also an additional artificial effect. But whether it is to restore the effect of the scene or add new effects. Its purpose is always to maximize the use of recorded programs that are played through the audio system, to approach and achieve live performances and vocals.
What kind of product can be called a high-fidelity pickup?
High-fidelity pickups only say that the pickup device requires more stringent performance parameters and is a relatively more advanced pickup device. In general, pickups can be divided into many categories and can be divided according to different parameters. So how to distinguish the sound of the pickup, one of the important parameters is fidelity. The so-called fidelity means that the pickup can record the desired sound as accurately as possible, and can restore the sound with a very high degree of authenticity. If such a requirement can be met, the pickup is generally called a high-fidelity pickup. Therefore, high-fidelity pickups do not refer to a certain type of product, but rather a classification of performance and performance.
It is hoped that through these simple introductions to the pickups, we can clearly recognize that some related technical indicators can better select the products when they need to be used or when they need to be purchased. Elit Audio offers high-quality noise reduction pickups. , We have professional R & D personnel, technology is guaranteed!
Fan Finger Guard, also is known as Fan Guard.
Fan Finger Guard can protect the AC/Dc Cooling Fan, ensure the air flows freely wile keeping objects safely away from the fan blades, and durable, all-metal construction for long term reliability and safety. Extended service life. Reduce the failure rate.
There are many ways to differentiate the fan finger guards.
1. According to the material, the fan finger guards can be divided into metal finger guards and plastic finger guards.
2. According to the size dimension, the fan finger guards can be divided into finger guard for 30 mm fan, 35 mm fan, 40 mm fan, 45 mm fan, 50 mm fan, 60 mm fan, 70 mm fan, 80 mm fan, 92 mm fan, 120 mm fan, 135 mm fan, 150 mm fan, 172 mm fan, 180 mm fan, 200 mm fan, 220 mm fan, 254 mm fan.
Fan Finger Guard
Fan Guard, Axial Fan Guard, Cooling Fan Guard, AC Fan Guard, DC Fan Guard, Metal Guard, Plastic Guard, Metal Finger Guard, Plastic Finger Guard
Shenzhen Fusheng Motor Co.,Ltd , http://www.fushengfan.com