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  2. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.

  3. Noise-canceling microphone - Wikipedia

    en.wikipedia.org/wiki/Noise-canceling_microphone

    The internal electronic circuitry of an active noise-canceling mic attempts to subtract noise signal from the primary microphone. The circuit may employ passive or active noise canceling techniques to filter out the noise, producing an output signal that has a lower noise floor and a higher signal-to-noise ratio .

  4. Audio headset - Wikipedia

    en.wikipedia.org/wiki/Audio_headset

    A headset is a combination of headphone and microphone. Headsets connect over a telephone or to a computer , allowing the user to speak and listen while keeping both hands free. They are commonly used in customer service and technical support centers, where employees can converse with customers while typing information into a computer.

  5. Wii Speak - Wikipedia

    en.wikipedia.org/wiki/Wii_Speak

    Wii Speak is a microphone accessory for Nintendo's Wii home video game console. Connected to the console via USB, the device can be placed near the video display, which allowed voice chat to be conducted within entire rooms across multiple households. [2] The device features an LED indicating when the microphone is active.

  6. Hot mic - Wikipedia

    en.wikipedia.org/wiki/Hot_mic

    A special case of hot mic is the microphone gaffe, in which the microphone is actively collecting and transmitting sound gathered near a subject who is unaware that their remarks are being transmitted and recorded, allowing unintended listeners or viewers to hear parts of conversations not intended for public consumption. Such errors usually ...

  7. Stenomask - Wikipedia

    en.wikipedia.org/wiki/Stenomask

    Court reporter tests his stenomask. [1]A stenomask is a hand-held microphone built into a padded, soundproof enclosure that fits over the speaker's mouth or nose and mouth. . Some lightweight versions may be fitted with an elastic neck strap to hold them in place while freeing the user's hands for other tas

  8. Microphone blocker - Wikipedia

    en.wikipedia.org/wiki/Microphone_blocker

    A headphone cable with microphone, a wired headset, or a wired microphone - More expensive and will provide just one blocking plug. It's possible that microphone connectors without a microphone circuit like the above solutions offer low security, because when you plug a connector that has no microphone or microphone circuit, software has the ...

  9. Wireless microphone - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone

    A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...