setting up music/SFX volume controls

im trying to set up volume controls in my game, but because the engine uses decibles im having trouble making it a smooth volume gradient.

eg. i would like it so volume set at 0 is mute, 50% is half of full volume, and 100% is maximum.

i think decibles are logarithmic or something? so it needs some other approach to have normal volume controls?

can anyone help with this?

Yeah, you can use this formula:

Audio Set volume to log10(volumePercentage/100)*20

Where volumePercentage is a value between 0 and 100

that works perfectly! thanks very much!

Yeah, you can use this formula:

Audio Set volume to log10(volumePercentage/100)*20

Where volumePercentage is a value between 0 and 100

Hey thanks agains for your help!

ive run into another problem i was wondering if you could help me with.

some of my music tracks & SFX files are too loud, so in the past i had just played them at -5 or -10dcb to try and balance them within construct rather than having to edit all the original audio files.

the problem with playing a file at (log10(volumePercentage/100)*20)-10

is that the additional -10 to balance my sounds is not logrythmic, so it tends to become muted before other sounds when adjusting.

not sure if that makes sense. im basically looking for a way to adjust any given sound of mine so it plays at slightly less max volume, that will still logrythmically scale down to 0 volume(or -30dcb) when volume is brought down.

thanks heaps again!

If you want to reduce volume for a particular sound, say by 30%, you can do this:

(log10(volumePercentage*0.7/100)*20)