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  2. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    Elevated workplace or environmental noise can cause hearing impairment, tinnitus, hypertension, ischemic heart disease, annoyance, and sleep disturbance. [ 3][ 4] Changes in the immune system and birth defects have been also attributed to noise exposure. [ 5] Although age-related health effects ( presbycusis) occur naturally with age, [ 6] in ...

  3. Occlusion effect - Wikipedia

    en.wikipedia.org/wiki/Occlusion_effect

    The outer ear pathway corresponds to the sound pressure generated in the ear canal cavity due to the vibration of the ear canal wall, which constitutes the source of the occlusion effect. At low frequencies, the outer ear pathway is negligible when the ear canal is open but dominates when it is occluded. The occlusion effect is thus objectively ...

  4. The Very Best Earplugs for Sleeping, According to Sleep ... - AOL

    www.aol.com/lifestyle/very-best-earplugs...

    Experts discuss earplugs for sleeping including the best earplugs, if earplugs are safe for sleeping, the best earplug materials, and more.

  5. Noise-induced hearing loss - Wikipedia

    en.wikipedia.org/wiki/Noise-induced_hearing_loss

    Otorhinolaryngology, audiology. Noise-induced hearing loss ( NIHL) is a hearing impairment resulting from exposure to loud sound. People may have a loss of perception of a narrow range of frequencies or impaired perception of sound including sensitivity to sound or ringing in the ears. [ 1] When exposure to hazards such as noise occur at work ...

  6. Earwax - Wikipedia

    en.wikipedia.org/wiki/Earwax

    Earwax, also known by the medical term cerumen, is a waxy substance secreted in the ear canal of humans and other mammals. Earwax can be many colors, including brown, orange, red, yellowish, and gray. Earwax protects the skin of the human ear canal, assists in cleaning and lubrication, and provides protection against bacteria, fungi ...

  7. How to add the echo effect on TikTok [Video] - AOL

    www.aol.com/lifestyle/add-echo-effect-tiktok...

    Step 1: Upload your video to TikTok. Step 2: Tap "Voice Effects." Locate "Echo" by scrolling through the options. Step 3: Hit "Echo" and it will instantly add the effect.

  8. Emily Giffin on 'Little Women, ' and the Book With the ... - AOL

    www.aol.com/emily-giffin-little-women-book...

    The reunion of Fermina and Florentino is an ode to the power of love and its ability to withstand time and overcome any obstacle. …broke my heart: Me Before You by Jojo Moyes. The ending crushed me.

  9. Shepard tone - Wikipedia

    en.wikipedia.org/wiki/Shepard_tone

    Shepard tone. A spectrum view of ascending Shepard tones on a linear frequency scale. A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the bass pitch of the tone moving upward or downward, it is referred to as the Shepard scale.