I have Philips 40 FHD. Same is with me, USB movies of low quality are playing well, problem with high quality sound only.most probably you can.
which exact model do you have ? does it have RCA audio out ports ?
btw I recently got a new TV and it too has the same problem - low sound with usb movies
No, there is no Headphone or SPDIF/optical out in my TV.You need an audio output port on the TV
an example is a Headphone or SPDIF/optical out
Headphone is the best option as you can directly plug in your PC speakers to the TV and have awesome sound.
Suddenly all your TV shows and movies will come to life.