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2. 8 white noise machines for better sleep - AOL

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   LectroFan Evo Sound Machine $ at Target. LectroFan Evo Sound Machine $ at Bed Bath and Beyond. The LectroFan Evo won an NBC Select Wellness Award for best sound machine last year. It is a compact ...

3. The 6 Best Sound Machines for a Restful Night's Sleep - AOL

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   In addition to an adjustable strap, this sound machine from the experts at Yogasleep contains 20 noise options, and a sleep timer for either a 45-, 90 minute, or eight-hour snooze.

4. 5 Great Sound Machines That Will Transform Your Sleep - AOL

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   These are the best sound machines to help you sleep soundly through the night in 2024. What to Consider. ... Of course, even the lowly sound machine has gone high-tech these days. Hatch’s aptly ...

5. White noise machine - Wikipedia

   en.wikipedia.org/wiki/White_noise_machine

   White noise devices are available from numerous manufacturers in many forms, for a variety of different uses, including audio testing, sound masking, sleep-aid, and power-napping. Sleep-aid and nap machine products may also produce other soothing sounds, such as music, rain, wind, highway traffic and ocean waves mixed with—or modulated by ...

6. High fidelity - Wikipedia

   en.wikipedia.org/wiki/High_fidelity

   High fidelity (often shortened to Hi-Fi or HiFi) is the high-quality reproduction of sound. [1] It is popular with audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion , and a flat (neutral, uncolored) frequency response within the human hearing range .

7. Sound Retrieval System - Wikipedia

   en.wikipedia.org/wiki/Sound_Retrieval_System

   SRS. Sound Retrieval System (SRS) is a patented psychoacoustic 3D audio processing technology originally invented by Arnold Klayman in the early 1980s. [citation needed] The SRS technology applies head-related transfer functions (HRTFs) to create an immersive 3D soundfield using only two speakers, widening the "sweet spot", creating a more spacious sense of ambience, and producing strong ...

8. These Sound Machines Help You Doze Off Fast and Sleep ... - AOL

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   The best sound machines offer multiple noises, come with timers, and allow you to adjust the volume. Shop options from Hatch, Loftie, and Yogasleep now. These Sound Machines Help You Doze Off Fast ...

9. Plasma speaker - Wikipedia

   en.wikipedia.org/wiki/Plasma_speaker

   The ionized air is heated in direct relationship to the modulating signal with surprisingly high fidelity over a wide area. Due to the destructive effects of the (self-sustaining) discharge this cannot be permitted to persist, and automatic systems momentarily shut down transmission within a few seconds to quench the "flame".