The answer is yes, it is definitely real sound wave. However, some sound waves that are swiped by local tyrants can be obtained by anchors, and some sound waves they cannot get. Those who can get them are basically swiped by local tyrants, but there are very few local tyrants who swipe with real money, and a live broadcast platform can probably count them on one hand. Those who cannot get them are very common. Whether it is Douyin or other live broadcast platforms, there are many such (big brothers), because their sound waves are used to swipe water. They have discounts when they recharge, and they swipe out and take it back. In fact, it is not much money. First, it can be used to swipe water, and second, it can be used to attract traffic. After attracting traffic, anchors can draw prizes, bring goods, and anyway, let these attracted spectators consume, which is often called cutting leeks.