I created a quick video that might help a little bit. It’s not exactly what you’re doing, but it may help point you in the right direction.
It’s a bit difficult to know exactly what you’re doing without seeing it, but keep in mind you can bind the linear gauge either to the excel file or the audio asset. The linear gauge doesn’t need to go from 0 to 100 either, the settings allow you to simple set a current, empty, and full value.
To make things happen according to a certain time, I would play around with one of a couple methods. The two I tend to use are the Comparison Interaface asset, where you can bind two values and set actions for whether they are equal/not equal, etc. Or many times, I will use a toggle button and set the Checked State to bind to something else…in your case the ‘current time’ of an audio file. Then I would set a Math converter on that binding “Is Equal To” and type in the exact time. So when that time hits, it will check the toggle button and trigger my actions. Just a couple methods, but get creative with it.
Here’s the linear gauge video: