Recording Onto PC

The fade-out & phasing could be due to “echo cancellation” (or similarly named) feature on your sound card which is used for recording voice (VOIP, Skype, etc). This feature should be switched off when recording music … Wierd Sound with Microphone.. - #11 by Godwinlee

The sound is also clipping in places, you should really feed the pedal into a “line-in” socket on your computer if you have one, otherwise you need to turn the pedal volume way way down.