Lovenstein is always awesome
Real talk for a sec:
If you're looking for a solution, then use Kodi. Open the context menu while playing a video, go to the audio settings, then adjust to your liking. (-20dB volume and 18dB volume amplification worked in my case, but you can tweak to your system).
If you're struggling with a noisy environment (I watch a lot of TV with my kids playing and running and screaming in the room), then get a Bluetooth speaker and put it near yourself. Now you're not battling to drown out other noise with more noise.
