Berlin-based sound wellness company Endel has raised $15 million in Series B funding led by Waverley Capital and True Ventures to further develop its patented technology. The company’s app creates soundscapes that are designed to help people relax, focus and sleep better. The technology takes inputs from the user’s movement, time of day, weather, location and other factors to use AI to generate personalized soundscapes that adapt to changes in real-time.