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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 or ANC.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. Head-related transfer function - Wikipedia

   en.wikipedia.org/wiki/Head-related_transfer_function

   HRTF filtering effect. A head-related transfer function (HRTF) is a response that characterizes how an ear receives a sound from a point in space. As sound strikes the listener, the size and shape of the head, ears, ear canal, density of the head, size and shape of nasal and oral cavities, all transform the sound and affect how it is perceived, boosting some frequencies and attenuating others.

4. Bluetooth - Wikipedia

   en.wikipedia.org/wiki/Bluetooth

   A Bluetooth earbud, an earphone and microphone that communicates with a cellphone using the Bluetooth protocol. Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs).

5. Sennheiser - Wikipedia

   en.wikipedia.org/wiki/Sennheiser

   Sennheiser specializes in equipment for both the consumer and professional audio markets, including microphones, headphones, and loudspeakers. Founded in 1945 by Fritz Sennheiser, the company's professional media division has been under the leadership of third-generation co-CEOs Daniel Sennheiser and Andreas Sennheiser since 2013.

6. Cuckoo (2024 film) - Wikipedia

   en.wikipedia.org/wiki/Cuckoo_(2024_film)

   Cuckoo is a 2024 horror film written and directed by Tilman Singer, and starring Hunter Schafer, Jan Bluthardt, Marton Csokas, Jessica Henwick, and Dan Stevens.A co-production between Germany and the United States, the film follows a teenager (Schafer) who moves to the German Alps to live with her father (Csokas) but becomes disturbed by strange occurrences as her father's boss (Stevens ...

7. Misophonia - Wikipedia

   en.wikipedia.org/wiki/Misophonia

   Misophonia (or selective sound sensitivity syndrome, sound-rage) is a disorder of decreased tolerance to specific sounds or their associated stimuli, or cues.These cues, known as "triggers", are experienced as unpleasant or distressing and tend to evoke strong negative emotional, physiological, and behavioral responses that are not seen in most other people. [4]