Vizio Elevate sound bar volume control issue

[Steve-K-Pig]

Recently added an Elevate sound bar to HA using Discovery and the volume control is out of step. If I ask the integration to adjust volume using the slider the slider will go to my selection but snap back after a second. It snaps back to exactly 13 steps above or below the starting point. If I ask for volume 50 from 10 it will go up but only by 13 steps, I can ask it repeatedly until it gets close to 50 then it seems to settle on a number as close to 50 as possible i.e 48.
I can call service volume_set in Node-Red and the sound bar behaves well. Send volume_level .1 and it's at volume 10 (or 10%) on actual sound bar display but slider in HA says 13. If I send volume_level .6 the actual sound bar will arrive at 60 (or 60%) but the integration slider is at ~96%. If I send volume_level 1 my ear drums pop and it is level 100 (or 100%) on the actual sound bar and the integration slider is, of course, maxed out.
Adjusting step size in integration doesn't seem to help.

Thank you,

[raman325]

hi @Steve-K-Pig sorry for the delay on this. So let's ignore the delay on the slider for now - I can probably improve that, but right now it loops through multiple step up volume by 1 calls and I don't think the API likes that for large increases/decreases.

So from what you are describing, the elevate sound bar has steps from 0 to 100? Instead of creating a device specific configuration, perhaps I can make the scale overwriteable. By default, soundbars are assumed to have 31 steps (because that's what mine supports), and that's probably what's causing this issue.