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This orientation gets its name from the fact that its pickup range is much like a heart: right in front of the microphone, its sensitivity to audio signals is very high; And to the side of the microphone (90 degrees), its sensitivity is also good, but 6 decibels lower than the front; Finally, for the sound from behind the microphone, it has a very good shielding effect. It is precisely because of this shielding effect on the sound behind the microphone that the heart-pointing microphone is very useful in multiple recording environments, especially in cases where a large number of indoor ambient sounds need to be eliminated. In addition, the microphone can also be used in live performances, because its blocking function can cut out the echo and ambient noise generated during the performance. In practice, heart-shaped microphones are also one of the most used types of microphones, but remember that, like all non-omnidirectional microphones, heart-shaped microphones also show a very significant proximity effect.
This type of direction is very similar to the over-heart type and is often confused, however, the general over-heart type is slightly less directional than the over-heart type and has a much smaller area of sensitivity to sound coming from behind the microphone.
This type of pointing is very similar to heart-shaped pointing and super-heart-shaped pointing because they are both very sensitive to the sound in front of the microphone. However, their lowest sensitivity is at different points, for example, the heart is directly behind the microphone, the super heart is at 200 to 210 degrees, and the heart is at 150 to 160 degrees, which is why the directivity of the heart is better than that of the heart and the super heart. In practice, this type of over-heart microphone is mostly used in recording environments where maximum source isolation is required.
这This type of pointing microphone, as the name suggests, is sensitive to audio signals from all directions around the microphone are equally high. The biggest advantage of this microphone is that it does not produce a significant proximity effect.
Sometimes, it is also called double pointing, because this pointing type of microphone has the same high sensitivity to the audio signal from the front and back of the microphone, but is less sensitive to the signal from the side of the microphone, so that the pickup range is presented on the drawing, it is very much like a word 8, and the position of the microphone is just at the segmentation point of the word 8, so it is named.