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  2. Microwave auditory effect - Wikipedia

    en.wikipedia.org/wiki/Microwave_auditory_effect

    According to Frey, the induced sounds were described as "a buzz, clicking, hiss, or knocking, depending on several transmitter parameters, i.e., pulse width and pulse-repetition rate". By changing transmitter parameters, Frey was able to induce the "perception of severe buffeting of the head, without such apparent vestibular symptoms as ...

  3. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Without power, some models do not function as regular headphones. Any battery and additional electronics may increase the size and weight of the headphones compared to regular headphones. The noise-cancelling circuitry may reduce audio quality and add high-frequency hiss, although reducing the noise may result in higher perceived audio quality ...

  4. Tinnitus - Wikipedia

    en.wikipedia.org/wiki/Tinnitus

    Tinnitus is often described as ringing, but it may also sound like clicking, buzzing, hissing, or roaring. [4] It may be soft or loud, low- or high-pitched, and may seem to come from either one or both ears, or from the head itself. It may be intermittent or continuous.

  5. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    In the context of telecommunication, a headset is a combination of a headphone and microphone. Headphones connect to a signal source such as an audio amplifier, radio, CD player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as Bluetooth ...

  6. Noise-induced hearing loss - Wikipedia

    en.wikipedia.org/wiki/Noise-induced_hearing_loss

    FM systems can enhance the use of hearing aids and overcome the effects of poor listening conditions because the signal is sent from the microphone worn by the speaker directly to the listener. [135] The prognosis has improved with the recent advancements in digital hearing aid technology, such as directional microphones, open-fit hearing aids ...

  7. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    The term 1-dimension refers to a simple pistonic relationship between the noise and the active speaker (mechanical noise reduction) or between the active speaker and the listener (headphones). Protection of a 3-dimensional zone requires many microphones and speakers, making it more expensive.

  8. Hearing loss - Wikipedia

    en.wikipedia.org/wiki/Hearing_loss

    tinnitus, ringing, buzzing, hissing or other sounds in the ear when no external sound is present; vertigo and disequilibrium; tympanophonia, also known as autophonia, abnormal hearing of one's own voice and respiratory sounds, usually as a result of a patulous (a constantly open) eustachian tube or dehiscent superior semicircular canals

  9. Noise gate - Wikipedia

    en.wikipedia.org/wiki/Noise_gate

    An Alesis Micro Gate noise gate. A noise gate or simply gate is an electronic device or software that is used to control the volume of an audio signal.Comparable to a limiter, which attenuates signals above a threshold, such as loud attacks from the start of musical notes, noise gates attenuate signals that register below the threshold. [1]