[Fizzlemizz]

Munkdev I believe posted this to stop sounds playing (if it was someone else, apologies and please let me know). Should also work for PlaySoundFile():

local mutex = false -- need this so it doesn't recurse when PlaySound is called from within
hooksecurefunc('PlaySound', function(id)
    if mutex then return end -- we called this time, just return
    mutex = true -- flag mutex
    -- play another sound to figure out the ID.
    -- can't play the same sound because it's occupied by another handle.
    local played, handle = PlaySound(id+1) -- just use the ID+1 to guarantee it's different
    mutex = false -- unflag mutex
    if played then
        StopSound(handle-1) -- stop the sound you wanted to stop in the first place
        StopSound(handle) -- stop your dummy sound
    end
end)
 
--  Stop playsound from a specific function
hooksecurefunc("BNToastFrame_Show", function()
    local played, handle = PlaySound(SOUNDKIT.AMB_GLUESCREEN_WORGEN)
    StopSound(handle-1)
    StopSound(handle)
end)

There's no pause/restart functions.