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What is a ribbon microphone-aluminum ribbon microphone encyclopedia

Author:admin   AddTime:2021-03-08

Ribbon Microphone-Ribbon Microphone

It and condenser microphones are both technologies that emerged in the 1930s. European people prefer condenser microphones and American people prefer ribbon microphones. It has formed an industry habit to this day and can be described as the "national microphone" of the United States. The sound is characterized by fat and warm (excellent low frequency), smooth connection, slow transient state, and low high frequency. In short, it is "comfortable and non-stimulating". It is used for light jazz and slow songs, and sometimes used to replace dynamic microphones. Record instruments with loud sound pressure (such as a guitar case) or high frequencies that are too bright (such as a trumpet).

Although it was gradually replaced by condenser microphones in the 1980s and 1990s, there have been major advances in aluminum ribbon technology since 2000, and condenser microphones have stagnated. By 2015, the new ribbon microphones had reached the sensitivity and frequency response of condenser microphones, while still maintaining the previous timbre characteristics, and their prices had dropped significantly, making them a new choice for musicians.

The sound principle of ribbon microphone

The aluminum ribbon microphone uses a thin aluminum sheet to cut the magnetic field to generate current. Because the diaphragm is designed as a long strip, the linear vibration range is larger than the circular diaphragm, and the reset is not as tight as the circular diaphragm, so the frequency response curve is very smooth and The low frequency pick-up can usually reach 20Hz.

However, it has many problems: low sensitivity, low transient, insufficient high frequency, relatively fragile diaphragm, high sound pressure or accidentally turning on 48V may cause the diaphragm to burn...

What is a ribbon microphone-aluminum ribbon microphone encyclopedia

What is a ribbon microphone-aluminum ribbon microphone encyclopedia



Modern ribbon microphone

In 2002, American Royer Company released a special microphone R-122—the first aluminum ribbon microphone that supports 48V power supply. The official said it is equivalent to a free 13dB gain than R-121, and at the same time there is no increase in the noise floor, and the sensitivity is lower. Improved to close to -36dB of condenser microphones.

Since then, more new technologies have been applied to ribbon microphones, including thinner and tougher diaphragms, more efficient transformers and chips, and more sophisticated manufacturing processes. At the same time, the participation of Chinese manufacturers has also forced European and American manufacturers to lower prices. In 2015, Rode released a higher-tech NTR microphone. This is the first time that ribbon microphones have caught up with the industry standard U87 for condenser microphones in terms of sensitivity and frequency response.

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