This is my first time posting and wanted to see if anyone has a similar issue. I have a Roku Ultra connected directly to the Bose SoundTouch 300 and I am not receiving any Dolby Digital from applications that do support it on Roku. I previously also had my LG UBK90 UHD Blueray connected to the soundbar with similar results, only PCM was showing. Is there a configuration setting that I am missing for these devices?
Thanks for writing in!
The SoundTouch 300 soundbar should be capable of handling Dolby Digital as well as DTS. If the devices are connected direct to the HDMI input on the soundbar, it should be playing what it receives from the source directly.
Because this soundbar doesn't have a display or the ability to display the audio format, where did you see the PCM information?
Tony A - Community Support
Thanks for replying, I am able to see what audio is being passed from a menu on my LG television. I've only recently started using the Roku being plugged in to the ST300, when it was connected to my television and the sound was being sent over ARC I was seeing Dolby Digital. Not sure if the problem is the Soundbar or the Roku at this point, I am going to try plugging in my 4K Blueray player in to the ST300 and see if I get Dolby or or DTS for further troubleshooting.
Thanks for the update!
It sounds like the audio is most likely playing in the DD 5.1 format and when the video is sent to the TV through the HDMI out port, it may be providing a 2.0 audio signal to the TV. If you do a comparison where you have the Roku connected direct to the soundbar and then with the same content, play it through the TV, I'm curious to see if you hear a change in the audio quality.
Let us know so we can further assist!
After some testing I did get to a resolution, it appears that on the SoundTouch app under advanced audio settings I actually had to disable the the surround sound option while being plugged in to the hdmi in port on the SoundTouch. Once that was done I was able to get Dolby digital and dts. Isn’t that a little confusing? Either way I am getting the necessary sound from my sources.
Thanks for replying.
I appreciate you sharing the resolution with us and agree that is a bit odd that you had to disable the surround sound option in order to get that working.
I'm going to pass this along as feedback to development.
If you have any other questions, let us know.
Joel - Community Support
Dec 26, 2018
Thanks for writing in!
Is the issue you're having about the TV defaulting to the ARC connection? If so, you may want to check the advanced speaker settings within the SoundTouch app and try and set the CEC settings to alternate on.