Speech isnt as clear as the overall background noise is amplified instead from the speaker making it harder to focus on the speech of the movie

They use hearing aid technology to emphasize voices and reduce background noise.

The sound on this is very realistic and in dialog mode, we can now hear the conversations over the background noise.

I love this sound bar because I can adjust it to hear the conversation by lowering the background noise

Also cleans up speech from background noise.

Added bonus is the dialogue button, which bumps up the dialogue and bumps down the background noise making movies more enjoyable in a house with sleeping babies

while the volume, which gets only slightly louder than the volume of the TV without the sound bar, can be set to a comfortable level in a quite room, add running water or activity in the nearby kitchen (or just background noise like talking) and the tv becomes difficult to impossible to hear (same for our teenage daughters)

does not do what I expected, make voice in pictures more distinguishable relative to background noise

And dialog is as clear as with the Zvox.

I have a Samsung 3D 4K television that I recently purchased, but like most all televisions, the speakers are on the back and the sound quality is not as sharp as it should be for a television in this price range.

Good U/I.