Solved
Voices only on soundbar and not speakers-Extended stereo music selection not working
Have Roku TV with Roku speakers and Roku soundbar. Selected music in expanded stereo in order for all speakers in the room to have stereo surround sound, thus hearing people talk through all speaker...
The only work-around I found is in the Audio settings. You have to go into Audio —> Digital output format —> Stereo. Changing it from Auto or Passthrough to Stereo seems to bypass any automatic Dolby settings that take over control.
