Low sound volume for online videos

One of the reasons why pakistani websites like bepanah.cc with videos of hindi serials are popular in India instead of the official websites, is because the sound volume at these website is adjustable and the user can ensure that the dialogues are audible.
the webmasters of these websites are having a video camera to record the program as it is being broadcast, and they are editing to remove the ads before uploading, the sound quality is very good, though video quality is poor.
On the official website, even if the volume is increased to the maximum possible level, the dialogues are often not audible to the viewer.
For some dialogues the actor is modulating his voice, and if the maximum sound level is less, the dialogue is not understood
This problem was also faced when the domain investor booked a hotel room, and was watching movies on the television set in the hotel room.