3. Velvet noise on black screen in 4K (333Hz boost, 8765Hz filter, 30 minute fade after 0 hours)

    Velvet noise on black screen in 4K (333Hz boost, 8765Hz filter, 30 minute fade after 0 hours)

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    0
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    1
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    Velvet noise on black screen in 4K (373Hz boost, 3333Hz filter, 30 minute fade after 7 hours)

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    Pink noise on black screen in 4K (300Hz boost, 3456Hz filter, 30 minute fade after 3 hours)

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    walkthruwoods rushgriver BLACK SCREEN 10 HOURS FOR SLEEP STUDYING AND RELAXING

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    walking to river BLACK SCREEN 10 HOURS FOR SLEEP STUDYING AND RELAXING

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    vessel rhine bockelson BLACK SCREEN 10 HOURS FOR SLEEP STUDYING AND RELAXING

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    water flows creek loud BLACK SCREEN 10 HOURS FOR SLEEP STUDYING AND RELAXING

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    water birds city park BLACK SCREEN 10 HOURS FOR SLEEP STUDYING AND RELAXING

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    3
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    5