Many people benefit from the steady, soothing sounds of brown noise and so do babies. A constant frequency can help maintain sleep in the toughest environments. Babies are sensitive to our bustling worlds, and the many invasive sounds with multiple amplitudes can cause your child to wake.Brown noise will help mimic the sound that your baby heard in the womb.The authors have created each track to ensure your child has a full sound support during a nap or sleep.The twelve sounds have a gentle fade in and out to help to customize the volume 10 seconds after you start the sound.This audio book features twelve frequencies of brown noise:*** Dreamy Brown Noise*** Human Bloodstream - Pulsating Brown Noise*** Soft Ventilation*** Smoothed Brown Noise*** Deep Dive - Underwater Brown Noise*** Cosmic Brown Noise*** Awesome Fan Sound*** Ultra Soft Brown Noise With Piano Whispers*** Niagara Falls - Natural Brown Noise*** Deepest Brown Noise with Long Warm Bass Tones*** NightFlight - Airplane Brown Noise*** ... and much more!What you will NOT hear:This audio book will not surprise you like others; you will not hear any overlying sounds of music or voices embedded in this book.Download our fifteen-hour (!) audiobook, and choose the sound that best fits your needs.Enjoy!