Audio Sliders

[ember spruce]

This is how I'm trying to implement my audio sliders so far, It doesn't seem to change anything but I'm pretty sure i've connected them to the correct bus index. Where have i gone wrong? I looked up some solutions on the internet but i can't wrap my head around it 😦

[copper fox]

I think bus indexes arent 0123 theyre some random number so you have to get them by code
Create bus_index and bus_name variable for each audioserver and in ready function set each bus index by the bus name and finally instead of putting 0 1 2 you put the matching bus index

https://youtu.be/aFkRmtGiZCw?si=hkmj65HJfOHQ22Jj

[ember spruce]

Hmmm I tried it and it still doesn't work

These are the error output when i changed the slider values while debugging

And this is my bus channels

[last ingot]

You definitely have the bus_name variable set properly on the nodes?

I believe it would be case sensitive, so it's worth checking

[ember spruce]

Omg I did not

TT

Okay it works now but my question is that i essentially have to have 1 script for 1 slider?

[last ingot]

I assume what's happened here is you've asked for the index of a bus name that doesn't exist, so it's returned -1, so when you try to set the value on the bus, it errors, because -1 isn't a valid index

[last ingot]

This setup shouldn't require you to make more than just this one script

You can just use this script but change the bus_name variable for each slider

[ember spruce]

But the script has to extend HSlider?

Because I would prefer to put them in my settings_menu.gd instead of a seperate script that contains the audio code

[last ingot]

It only needs the value_changed signal, right?

[ember spruce]

Like in here

[ember spruce]

yea i tried this yesterday but it doesn't quite work

[last ingot]

Maybe because you weren't using linear_to_db?

[ember spruce]

hmmm Okay i'll try that again and hopefully it works

It is not safe to assume that my bus channels will have index 0, 1 and 2?

[last ingot]

I don't know where the other person got the idea that it wasn't from

The indexes start at 0

[ember spruce]

Okay i will try my prev method again if not i'll just make it a seperate script for now

thanks alot for the explaination!

[last ingot]

Well, okay, let me actually back up this claim by checking in the engine real quick

[ember spruce]

I did some print statements in my code and it showed 0, 1 and 2

so i was just wondering if there was actually a case where what the other person said was true

[last ingot]

It shouldn't ever be true

I did some testing to confirm

Buses are stored in an array, I would assume

If you try to add a bus at a position beyond the size of that array, it just gets added to the end instead

[ember spruce]

Okay understood

I tried this again in my settings_menu.gd

But it still doesn't work

And i can't really call this

    print(bus_index);
    value_changed.connect(_on_value_changed)
    value = db_to_linear(
        AudioServer.get_bus_volume_db(bus_index)
    )```
In my settings_menu.gd because apparently value_changed is not declared

[last ingot]

Those on_value_changed functions.. Are they actually connected to the signals?

[last ingot]

Also, these functions aren't changing anything right now because you're overriding the value given by the slider with the current value of the bus volume, and then putting the current value back in to the bus volume

[ember spruce]

Yes i believe so

[last ingot]

Since this script isn't being attached to arbitrary nodes, you can just connect the signals in the editor, and normally that would show up as a little green arrow symbol next to the functions

[ember spruce]

Yep it is showing the green arrows on the left

[last ingot]

Oh, huh, guess they didn't show up in the screenshot?

[ember spruce]

Yea cause i was at a different scene on the tab

[last ingot]

Anyway, these functions aren't doing anything because of this. Get rid of the value = ... lines from those functions and it should work?

[ember spruce]

Okay it did!

Now it should be save to just remove my other script then