Just the title, there's not much more to it

I'm yet to find a way to make every lab play it in sync. It turned out to be more difficult task than I've thought

Aggregation options for sound can limit how many copies of the sound play at once

https://wiki.factorio.com/Types/Sound#aggregation

yeah, only one copy of sound will be much better, is that possible what Kiplacon suggest? thx!

Aggregation options for sound can limit how many copies of the sound play at once

https://wiki.factorio.com/Types/Sound#aggregation

I didn't manage to make it work, it appears that Aggregation works only for some undocumented special cases: https://forums.factorio.com/viewtopic.php?p=511875#p511875

Alternatively, all sound sources could be synced, similar to the transport belts (persistent). But it should be toggleable somehow, just like belts that are disabled with circuit network make no sound. Idk if this sort of logic can be implemented for labs.

Hi there, just chiming in to keep this discussion active/alive. Has anyone managed to figure out a way to synchronize all the lab sounds?

Not to necro an old discussion, but you can sync lab sounds by making the following changes to sound.lua in the mod's prototypes folder:

Add the following attributes to the working_sound object:

max_sounds_per_type = 1,

e.g., change the sound.lua script to read:

-- The Lab
data.raw["lab"]["lab"].working_sound = {
    sound = {
        filename = "__LabDansen__/sounds/Lab_Dansen.ogg",
        volume = 0.5
    },
    max_sounds_per_type = 1,
    idle_sound = { filename = "__base__/sound/idle1.ogg", volume = 0.6 },
    apparent_volume = 2.5,
}

https://mods.factorio.com/mod/LouderLabDansen remix of this mod that applied this code