Public broadcasting systems usually use high-reliability, dynamic, low-middle-resistance core-type and point to dynamic microphones.
Capacitive microphones are extremely sensitive and can reproduce sound clearly. Received in front of the voice, the greatest gain. Can filter noise from around, ideal for use in environments with lots of background noise. We can see that the directional microphones have different gains in all directions: the largest in the front, the smaller in both sides, and the smallest in the rear. In terms of electrical specifications, we call it a higher Fr ratio (Front to Random response index). In order to maximize the use of microphones, you must first understand some of the microphone tips.
1. The best position of the speaker from the microphone is 15 to 40 centimeters
If the distance is too close, the speaker's bass part will be distorted by the loudness. If the distance is too close, a "near-field effect" will be produced. The performance is an increase of excessive bass. The speech is ambiguous, and serious ones are completely inaudible. However, if the background noise is too large, you sometimes have to speak to the microphone. At this point you can use a microphone that attenuates the bass. A better microphone design has a built-in bass attenuator to reduce the distortion caused by too close to the microphone. Without such a microphone, compressing the bass on the amp is also helpful.
If the speaker must speak at a relatively long distance, the microphone will simultaneously record other sounds in the space, thus affecting the clarity of the speech. If the microphone and speaker are in the same room, the sound from the speaker will be amplified by the microphone and repeated amplification. The situation is even worse, and there may be an echo whistle.
2, the microphone should be aligned with the mouth, to a straight line
Since the directional microphone receives the greatest sensitivity from the linear direction, the speaker should preferably aim the microphone at the mouth to a straight line to avoid sound deterioration.
3, try to maintain a certain volume when speaking
In public broadcasting systems, volume limiters may also be used to protect the amplifier. The volume limiter can help the user control the microphone output volume, avoid sudden loss of volume control, scare the audience, or damage the audio equipment. The function of the volume limiter is not to "adjust" the speaker because of melody, but to help the speaker convey the message to be conveyed in a clear and gentle tone.
Capacitive microphones are extremely sensitive and can reproduce sound clearly. Received in front of the voice, the greatest gain. Can filter noise from around, ideal for use in environments with lots of background noise. We can see that the directional microphones have different gains in all directions: the largest in the front, the smaller in both sides, and the smallest in the rear. In terms of electrical specifications, we call it a higher Fr ratio (Front to Random response index). In order to maximize the use of microphones, you must first understand some of the microphone tips.
1. The best position of the speaker from the microphone is 15 to 40 centimeters
If the distance is too close, the speaker's bass part will be distorted by the loudness. If the distance is too close, a "near-field effect" will be produced. The performance is an increase of excessive bass. The speech is ambiguous, and serious ones are completely inaudible. However, if the background noise is too large, you sometimes have to speak to the microphone. At this point you can use a microphone that attenuates the bass. A better microphone design has a built-in bass attenuator to reduce the distortion caused by too close to the microphone. Without such a microphone, compressing the bass on the amp is also helpful.
If the speaker must speak at a relatively long distance, the microphone will simultaneously record other sounds in the space, thus affecting the clarity of the speech. If the microphone and speaker are in the same room, the sound from the speaker will be amplified by the microphone and repeated amplification. The situation is even worse, and there may be an echo whistle.
2, the microphone should be aligned with the mouth, to a straight line
Since the directional microphone receives the greatest sensitivity from the linear direction, the speaker should preferably aim the microphone at the mouth to a straight line to avoid sound deterioration.
3, try to maintain a certain volume when speaking
In public broadcasting systems, volume limiters may also be used to protect the amplifier. The volume limiter can help the user control the microphone output volume, avoid sudden loss of volume control, scare the audience, or damage the audio equipment. The function of the volume limiter is not to "adjust" the speaker because of melody, but to help the speaker convey the message to be conveyed in a clear and gentle tone.
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