local function muteSounds()
    for _, sound in pairs(workspace:GetDescendants()) do
        if sound:IsA("Sound") then
            sound.Volume = 0
        end
    end
end

-- Mute existing sounds
muteSounds()

-- Mute new sounds that get added
workspace.DescendantAdded:Connect(function(descendant)
    if descendant:IsA("Sound") then
        descendant.Volume = 0
    end
end)