Why do throat mics almost always have 2 elements?

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In summary, the discussion was about the design of a throat mic, specifically focusing on the use of two transducers for noise cancellation. One participant suggested that the transducers are connected in series opposition and only one is coupled to the vocal cords to prevent signal cancellation. However, another participant argued that noise cancellation may not be necessary due to the thicker skin at the throat. Both participants suggested doing a search for more information on throat mics.
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theycallmevirgo
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Most things like this

https://www.coderedheadsets.com/Assault-MOD-Waterproof-Tactical-Throat-Mic-p/assault-mod-wp.htm

generally have 2 transducers. Why? If for phased array noise cancellation, can someone give a broad outline of the "summing" circuit?
 
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I would guess that the two transducers are connected in series opposition. As both are subject to ambient noise, it will be cancelled. But only one transcuder is coupled to the vocal cords, to that signal is not cancelled.
 
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Try this search. Noise cancelling does not seem to be needed.The skin at the throat being much thicker than the eardrums, likely doesn't vibrate nearly as much... and some sites describe a throat mic as a vibration sensor.

https://www.google.com/search?&q=throat+mics
 
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FAQ: Why do throat mics almost always have 2 elements?

Why do throat mics almost always have 2 elements?

Throat mics have 2 elements, one for transmitting and one for receiving, because they are designed to pick up sound directly from the vibrations of the vocal cords. Having 2 elements allows for better accuracy and clarity in transmitting and receiving the sound.

What is the purpose of having 2 elements in a throat mic?

The purpose of having 2 elements in a throat mic is to improve the quality of sound transmission and reception. The dual elements allow for better noise cancellation and clearer communication, especially in noisy environments.

Can a throat mic function with only 1 element?

Technically, a throat mic can function with only 1 element, but it would not be as effective as having 2 elements. The second element helps to filter out background noise and improve the overall sound quality.

Are there any benefits to using a throat mic with 2 elements?

Yes, there are several benefits to using a throat mic with 2 elements. These include better sound quality, improved noise cancellation, and the ability to pick up low frequency sounds that are often missed by single-element mics.

Are there any downsides to using a throat mic with 2 elements?

The only potential downside to using a throat mic with 2 elements is that it may be slightly bulkier and more expensive compared to single-element mics. However, the improved sound quality and functionality make it a worthwhile investment for many users.

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