[Solved] Music volume slider acting strange

[Imperf3kt]

I have had this issue for many months now, but it's been low priority so I ignored it, but my volume slider appears to be scaled incorrectly.

The first ~90% of the bar will only increase the volume to 50%, with the final 50% crammed in a tenth of the slider.
It's almost like it's in logarithmic mode instead of linear.

I believe this issue started when I switched to renpy 8.

The percentage is just a screen variable taken from

Code: Select all

python:
    preferences.get_volume("music")

Then I display it in the same screen above the slider that controls the volume (these are inside a larger vbox containing many more parts of the screen)

Code: Select all

hbox:
    Label _("Music Volume")
    null width(gui.pref_spacing)
    text "{:.0f}".format(music_vol*100)

hbox:
    xsize 230
    bar value Preferences("music volume")
    

Can anybody point out why it is behaving like this?
It's not just visual either, the music really is only at 50% that far along the slider.
It is the same across every project I use this in.

[Ocelot]

Is Preferences a typo here or is it a custom class used instead of Preference?

Some time ago RenPy switched volume control to change sound volume instead of amplitude. Previously moving volume bar didn't change anything audibly until you get to the bottom quarter or even 1/10th of the bar. So now mixers are set to work on logarithmic scale (like perceived loudness works in real life). You are accessing raw internal value through deprecated and un-documented function, so it is showing old unscaled value.

You can replace get_volume call with get_mixer, which is set to work with new sound scale.
https://www.renpy.org/doc/html/preferen ... .get_mixer

[Imperf3kt]

Yes it was a typo, it's supposed to be Preference.

Thank you for the help, get_mixer was exactly what I needed.