Use Active Noise Cancelling when you want to avoid distractions, such as when listening to music. Inside Galaxy Buds Live are AKG tuned speakers that are specifically made to play it all. While the air duct lets air vent easily, so you can feel the vibration in every beat. With ANC for open type, there is less noise. Now, you can focus better on what you're hearing. ANC filters low-pitched sound, but allows high-pitched sounds like human voices.