I have been using a 10 years old Sony television that does not have the ARC port. The optical cable goes work well. I used it with my older Onkyo receiver for the 5.1 sound and with my new receiver I am receiving 7.1 sound using the optical cable and the FireStick. I have my FireStick plugged into the receiver's HDMI port as well as my other devices to reduce the number of handhelds I need to control everything. You can get your 5.1 sound by either connecting the stick directly to the receiver or to the television. I was able to get both to work and it should not make any difference. Note that as Roginator said, not all the shows support the surround sound. I would suggest viewing the Tom Clancy Ryan show to verify that your surround sound is working properly.
I am watching the movie from 'Prime videos' itself and am sure it has dolby digital surround sound.
Can you tell me how did u connect ? You just connected Optical cable only ?
I am using samsung tv and i haven't seen any settinng such as output BITSTREAM. Where can i check that ?
Connect the Fire TV to an HDMI port on your TV. Run an optical (sometimes called TOSLINK) cable from TV to receiver. IN YOUR TV SOUND SETTINGS select BITSTREAM. Using your TV remote, turn down the sound volume. Using your RECEIVER remote, select the proper source and volume.
If these instructions aren't clear enough, find a handy 12 year old boy nearby.
@Massillon - When i connect the firestick to TV, and HDMI Cable between TV and Reciever, selected the option of "Dolby Digital Over HDMI" , there is no sound at all from the speakers. It is because my Receiver Harman Kardon AVR 141 doesnot support the audio over HDMI cable. It supports only video.
I haven't tried using the Fire stick connected to Receiver as my first preference is to use it through TV HDMI port. With optical cable connection, i have tried multiple shows including latest webseries in Netflix and Amazon prime( Like 'The Widow' etc....) and the result is same. It gives Stereo sound only. No 5.1 available using Optical cable.
Ok, after a little light reading I may have figured this out. The owners of music don't want people to be able to export their perfect 5.1 music over optical if it originates from HDMI (like the Fire TV sticks). There has to be a secure HDMI connection.
You should be able to play 5.1 stereo that originates from the TVs own apps over optical.
To get around this, you need an HDMI cable connecting the TV and receiver. This provides that secure connection. You won't even be using that HDMI connection, but apparently it must still be there for copy protection purposes.
Edit: Looks like your receiver only passes video through HDMI. So hopefully your TV has at least 2 HDMI inputs - one for the Fire TV and one for the useless HDMI running to the receiver.
1. Connected only HDMI Cable between TV and Receiver. But no sound, then i learnt that, my tv does not have HDMI ARC and my Receiver (AVR 141) does not support over HDMI. It supports video only. So this option ruled out.
2. Connected Optical cable and HDMI also between TV and Receiver (Treating HDMI as dummy wire). In this connection also, no Dolby surround sound. However, the option of Dolby Digital is enabled, if i select the option of"Dolby Digital over HDMI' is selected in Firetv stick settings. Note that, only option is enabled. But no sound at all from speakers. Not even stereo.
3. The only option to try out is to Connect the FireTV stick to Receiver which i would try it today. Not sure how to do that as i never tried connecting any device to Receiver before.
D'oh! I recently signed up on Amazon Prime for the Showtime streaming app.
I normally plug all HDMI devices into my receiver. As I was watching "Billions" today, I noticed I was only getting stereo - not 5.1 surround stereo.
At first I thought I had screwed something up last night when testing the Fire TV 4K plugged into the TV. But Prime Video on the Fire TV plugged into the receiver worked fine in 5.1 sound.
So I decided to install the Showtime app on my Samsung TV. I had no problem getting 5.1 sound from the Samsung app through optical to the receiver.
Thinking maybe Amazon's Showtime app didn't support 5.1 sound, I plugged the Fire TV back into the TV. It, too, played perfectly plugged into the TV using optical for audio to the receiver.
Now I don't know what to think. The app works fine on both the receiver and TV. But the Fire TV 4K using the Showtime app does NOT work properly in the most logical configuration - plugged into the receiver and connected to the TV via HDMI.
Maybe I am missing a setting. I will continue to look at this. Fortunately the Samsung app works flawlessly.