help to fix low voice volume and high BG volume

Hi,

Could you please suggest how to approach to solve the issue of "getting low voice / dialog volume and high back ground volume" from TV.
Getting similar issue when i am watching movies from USB drive connected to TV or from laptop connected to TV via HDMI cable.
Most of the time need to adjust the volume with remote when dialogs starts in a movie, and reduce it once background music is on.

Currently building an amplifier. So looking to fix this problem also with this external amplifier.
Do we need to go for:
1. tone controls (bass/treble controls)
2. analog filters
3. dsp based option.
or any other way to fix this problem.