If you go into ardour and click the mixer buttion there are those volume sliders and above that is the number it is set at. How do I edit that number without moving the slider aka just entering something like -20 and having it set to exactly that?
Just click into that box and type? See Gain & Meter section here:
I don’t see anywhere in there where it says how to enter a number precisely.
I click in the box but then the red highlighted line showing I selected it disapears.
From the page I linked:
The big Gain slider on the left allows to change the gain of the track. Its default OdB value is reminded with a white horizontal line, and its precise value is shown in a text field above it, that doubles as a way to type in a numeric value.
I don’t know what OS and ardour version you are using, but I do know that on linux, depending on desktop environment, themeing etc., the cursor and text color may do weird things. Here on KDE/Plasma with dark Breeze color scheme it sort of misbehaves, the red blinking cursor appears shortly after a click, then disappears, and reappears after a second click, and the box doesn’t highlight the text when I try to select parts of or the whole numerical value. But I always can manage to type text in there when the cursor shows.
I found the fix. You hold alt down and click on the number in the box twice and it works perfectly.