description Audio-Technica AT831b Overview
The Audio-Technica AT831b is a portable lavalier microphone designed for clear audio pickup. Its cardioid polar pattern minimizes background noise and features a gold-sputtered diaphragm ensuring sensitive sound capture. This durable microphone is suitable for presenters, musicians recording instruments, and anyone needing reliable on-location audio.
help Audio-Technica AT831b FAQ
Can the Audio-Technica AT831b run without phantom power?
Yes. Its AT8531 power module can use one 1.5-volt AA battery, or the microphone can run from 11-to-52-volt phantom power.
Is the AT831b only a speech lavalier?
No. Audio-Technica also supplies an AT8444 instrument adapter and specifically recommends the microphone for acoustic guitar pickup.
How should the AT831b be positioned on clothing?
Audio-Technica recommends placing it about 150 mm below the speaker's chin. Because it has a cardioid pattern, its front must face the mouth and clothing should not rub against or cover the capsule.
Does the AT831b connect directly to a camera's 3.5 mm input?
Not normally. The included power module terminates in a balanced three-pin XLR male connector, so a camera with only a 3.5 mm microphone jack needs compatible interfacing rather than a passive plug-shape adapter.
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