1. White noise on black screen in 4K (903Hz boost, 6573Hz filter, 30 minute fade after 5 hours)

    White noise on black screen in 4K (903Hz boost, 6573Hz filter, 30 minute fade after 5 hours)

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    Velvet noise on black screen in 4K (363Hz boost, 4444Hz filter, 30 minute fade after 5 hours)

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

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

    2
    0
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  4. Pink noise on black screen in 4K (444Hz boost, 6573Hz filter, 30 minute fade after 6 hours)

    Pink noise on black screen in 4K (444Hz boost, 6573Hz filter, 30 minute fade after 6 hours)

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    0
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  5. thunder 10 Hours Black Screen For Relaxing Sleep Study

    thunder 10 Hours Black Screen For Relaxing Sleep Study

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    thunder and rippling rainfall 10 Hours Black Screen For Relaxing Sleep Study

  7. the inner canyon online audio convertercom BLACK SCREEN 10 HOURS FOR SLEEP STUDYING AND RELAXING

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  17. Black Screen Heavy Rain and thunder 8 hours For Sleep,Relax,Sdudy,Meditation And Joga

    Black Screen Heavy Rain and thunder 8 hours For Sleep,Relax,Sdudy,Meditation And Joga

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  18. White noise on black screen in 4K (630Hz boost, 6789Hz filter, 30 minute fade after 0 hours)

    White noise on black screen in 4K (630Hz boost, 6789Hz filter, 30 minute fade after 0 hours)

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  19. Velvet noise on black screen in 4K (262Hz boost, 4321Hz filter, 30 minute fade after 2 hours)

    Velvet noise on black screen in 4K (262Hz boost, 4321Hz filter, 30 minute fade after 2 hours)

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  20. Velvet noise on black screen in 4K (393Hz boost, 3333Hz filter, 30 minute fade after 2 hours)

    Velvet noise on black screen in 4K (393Hz boost, 3333Hz filter, 30 minute fade after 2 hours)

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  21. Brown noise on black screen in 4K (343Hz boost, 2345Hz filter, 30 minute fade after 1 hours)

    Brown noise on black screen in 4K (343Hz boost, 2345Hz filter, 30 minute fade after 1 hours)

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  22. Brown noise on black screen in 4K (820Hz boost, 4567Hz filter, 30 minute fade after 3 hours)

    Brown noise on black screen in 4K (820Hz boost, 4567Hz filter, 30 minute fade after 3 hours)

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  23. Pink noise on black screen in 4K (990Hz boost, 3333Hz filter, 30 minute fade after 7 hours)

    Pink noise on black screen in 4K (990Hz boost, 3333Hz filter, 30 minute fade after 7 hours)

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