Thanks @totheuser86 the problem is solved. Mine was set to “leveling” which also screws up SS on Tablo - this audio setting must be set to OFF for Tablo to work in SS. But finding that setting on my Roku was not easy because you cannot access it from the menus - you can only get to it during Playback. So I will post official Roku instructions below. Hope this helps someone else.
What devices support volume modes?
To help determine if your Roku device supports volume modes, you need to know the software version and device model. To find this information, go to the home screen on your Roku device and select Settings > System > About .
In Roku OS 8.2.2, support for volume modes is available during video playback when Roku TV™ Wireless Speakers are connected to a Roku TV. In Roku OS 9, support is added to the Roku players listed below, as well as select Roku TVs whether paired or not to Roku TV Wireless Speakers.
|Roku Streaming Stick
|Roku Streaming Stick+
Roku OS 9 has rolled out to Roku players, and is expected to roll out to Roku TVs early next year. It is expected to be completed in Q1 2019.
Note : Information on the Roku TV models that will support volume modes will be available in early 2019 when Roku OS 9 begins rolling out to Roku TVs.
Enable volume modes during playback
When streaming a movie or TV show, or watching content from another device on your Roku TV (e.g., cable set-top box, Blu-ray™ player), you can enable Automatic Volume Leveling or Night Mode from the options menu as described below.
- Start playback.
- Press the Star button on your Roku remote.
- Select Advanced sound settings .
- Use the directional pad to switch Volume mode to the desired setting. The directional pad is plus-shaped and is in the center of your Roku remote.
Off : Volume modes are inactive and content volume is unmodified.
Leveling : Enables consistent volume across different types of entertainment so you do not have to change the volume every time you switch channels or a commercial comes on.
Night : The volume of soft sounds like whispering is increased while the volume of loud sounds like explosions is decreased, making it easier to hear your TV at night without disturbing others.
Note : In some streaming channels, the Star button is assigned a different function meaning it will not open the options menu as described above. In these cases, you must launch a different channel, such as The Roku Channel, and follow the steps above. Once the volume mode is switched, the setting will remain when you return to the original channel.