Custom sound too quite

[Żydson]

Hello, I'm having strange problem. I created my own custom looping sound. Outside gmod it is ok loud and clear. But in gmod it is so quite. So my question here I guess is simple. How to make it louder inside gmod. I already have that set up:
[lua]
sound.Add( {
    name = "crank_sound_loop",
    channel = CHAN_AUTO,
    volume = 1,
    level = 70,
    sound = "crank_sound_loop2.wav"
} )
[/lua]

[SweptThrone]

Then the sound is too quiet.
My PC's volume is at 50, and I run volume 0.1 in GMod, so sounds in a media player often sound much quieter in GMod.
Plug your sound into something like Audacity and see if the waveform is hitting the top and bottom of the little graph, and if it isn't, amplify it.
However that sounds like too much work to me, so if you just wanna send the sound file, I can edit it for you.

[Żydson]

Like don't get me wrong. I'm sound technician so I will just bring dBu myself in pro tools.