Recording Studio

The difference between the small diaphragm and the large diaphragm of the microphone?

Small diaphragm for musical instrument pickup

Large diaphragm for vocal pickup

Large Diaphragm Microphone

In practice, people often refer to a microphone with a diaphragm diameter greater than or equal to 3/4 inch as a large-diaphragm microphone. Generally speaking, mics with larger diaphragms produce louder sound, which is exactly what engineers like to record more distinctive sounds (such as vocals). In addition, large-diaphragm microphones are more sensitive to audio signals than small-diaphragm and medium-diaphragm microphones because of their relatively larger contact area with the audio signal. It is not unreasonable to assume that large-diaphragm mics can capture more low frequency signals than small-diaphragm mics, since the same design provides high-definition sound over a wider frequency range. Compared with the small-diaphragm microphone with the effect, the large-diaphragm microphone is more inclined to strengthen a certain characteristic in the audio signal, so that the sound effect has a more obvious bass characteristic. At present, there are many very high-quality large-diaphragm microphones on the market, such as isk’s U87pro large-diaphragm recording microphone is one of them

Mid-diaphragm microphone

The definition of a medium-diaphragm microphone is also one of the more controversial topics at present, because in history there are only large-diaphragm and small-diaphragm microphones, and there is no clear conclusion on the upper and lower limits of the diaphragm diameter. However, most professionals and manufacturers believe that microphones with a diaphragm diameter between 5/8″ and 3/4″ are medium-diaphragm microphones. Generally speaking, medium-diaphragm microphones are good at capturing instantaneous signals and high-frequency signals, and their sound effects are relatively round and full, with the warm texture of large-diaphragm microphones. There are also many excellent mid-diaphragm microphones.

Small-diaphragm microphones

At present, there is no final standard for the diaphragm size of small-diaphragm microphones, but most professionals and manufacturers believe that all microphones with a diaphragm diameter of less than 5/8 inches belong to small-diaphragm microphones . In terms of sound effects, small-diaphragm microphones, like medium-diaphragm microphones, are better at capturing high-frequency and instantaneous signals, but their sound seems to contain more air, and its polishing function is better than that of large-diaphragm and medium-diaphragm microphones. Slightly inferior, this may be due to the relatively small area of ​​the diaphragm, which is more susceptible to air fluctuations.

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