Sound not passing through main speakers

I have two denon speakers, a pioneer subwoofer, and a sharp tv connected through my denon avr 391 receiver. Most of the time, if I'm trying to stream through Chromecast, for example, YouTube, the sound is great. I get sound from all three speakers. Sometimes, if I'm trying to stream a movie or tv through Netflix, or Hulu for example, the sound only goes through my subwoofer. It sounds like a garbled mess and usually I can fix it by adjusting the audio to a lower quality ei not 5.1 or Dolby, just stereo sound. But now I'm trying to stream through HBO max, and the app doesn't have the option to downgrade the audio quality. The only feasible option I have is to plug the Chromecast directly into the TV and watch The Last of Us with crappy tv speakers. I was advised by HBO customer support that it might be the HDMI cable that can't carry 5.1 or Dolby audio. Is there any truth to this? Or is there another setup issue possibly going on?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2944067:04crwdne2944067:0:

Hi @kevinhwang

What is the model number of the TV?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@jayeff LC-52LE640U

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@kevinhwang

Try using the optical audio out connection and check if that works for all applications.

Select audio output of Dolby Digital in the TV

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@jayeff this was a solution I was recommended before. I just tried it again, but I don't think it worked. However, I was fiddling around with the menu within the receiver and managed to change the audio quality to stereo from Dolby and it worked out great. Now I can hear everything crystal clear! This was a problem I've had since 2020 and it drove me crazy. But hopefully someone in the future that has this problem might see this as a potential solution to try out... Thank you for your time.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0