If the mic audio from the GO:PODCAST is distorted, the mic gain is likely set too high. Lower the mic gain using either method.
On the GO:PODCAST unit: Press the knob until the main indicator lights up yellow (mic gain setting) and turn the knob to lower the gain.
In the GO:PODCAST app: Tap the Menu button, then Audio, then Mic Gain, and adjust the slider.
The app's mic level meter turns red when the input is too high. Adjust the gain until the meter shows yellow.