Why is YouTube so quiet - You first need to know that if there is an issue in this video only, then you have to check that you have not put any of your horrible sound. And if you are facing this problem in all videos, then you need to check the volume. If your volume is fine then you have to check the volume settings. If there is no fix your issue check for solutions - https://onlinegeeks.puzl.com/_news/Why-Can%2527t-I-Hear-Sound-on-Some-YouTube-Videos%253F/282127