Don Peterson once have uploaded a Wav-File "white Noise- 6dB"
If you do not find here -> link to my dropbox https://www.dropbox.com/s/i6cpxkqiau2nuxm/white noise -6dB.wav?dl=0
Yeah, I know. I sent him the files for the dunlop JH-1 wah (now a preset), and I've sent him the files for the dunlop Cantrell wah. He is probably busy though, so I was wondering if perhaps we could figure out the process.