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  2. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Active noise control ( ANC ), also known as noise cancellation ( NC ), or active noise reduction ( ANR ), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...

  3. Hearing protection device - Wikipedia

    en.wikipedia.org/wiki/Hearing_protection_device

    A hearing protection device, also known as a HPD, is an ear protection device worn in or over the ears while exposed to hazardous noise and provide hearing protection to help prevent noise-induced hearing loss. HPDs reduce the level of the noise entering the ear. HPDs can also protect against other effects of noise exposure such as tinnitus and ...

  4. Echo suppression and cancellation - Wikipedia

    en.wikipedia.org/wiki/Echo_suppression_and...

    Echo suppression and echo cancellation are methods used in telephony to improve voice quality by preventing echo from being created or removing it after it is already present. In addition to improving subjective audio quality, echo suppression increases the capacity achieved through silence suppression by preventing echo from traveling across a ...

  5. The Skyted mask makes you quiet enough to take calls even in ...

    www.engadget.com/the-skyted-mask-makes-you-quiet...

    The company launched its Kickstarter campaign today at CES 2024 for its noise-reducing wearable that would allow you to speak freely about confidential information anywhere without worrying about ...

  6. Krisp expands from noise canceling to on-device transcription

    techcrunch.com/2023/03/28/krisp-expands-from...

    Krisp got its start as an AI-powered noise-cancellation service, but now the startup is moving beyond that with instant on-device transcription of all your calls and meetings — and of course it ...

  7. Qualcomm's adaptive ANC adjusts to changes in earbud fit

    www.engadget.com/qualcomm-adaptive-active-noise...

    The company calls its new tech Adaptive Active Noise Cancellation, a feature that is now available on its QCC514x Bluetooth audio chip. Alongside support for voice assistants, “premium” audio ...

  8. Electronic voice phenomenon - Wikipedia

    en.wikipedia.org/wiki/Electronic_voice_phenomenon

    v. t. e. Within ghost hunting and parapsychology, electronic voice phenomena ( EVP) are sounds found on electronic recordings that are interpreted as spirit voices. Parapsychologist Konstantīns Raudive, who popularized the idea in the 1970s, described EVP as typically brief, usually the length of a word or short phrase.

  9. Sennheiser's new hearing aids don't look like hearing aids

    www.engadget.com/sennheiser-conversation-clear...

    The Conversation Clear Plus looks a lot like a pair of regular true wireless headphones which will go a long way to removing any stigma or association with conventional hearing aids.