Looks like you can slow stuff down in Audacity:
"Select (click and drag) the area you’d like to slow down. You can also go Edit>Select All if you want to select the entire track.
Click Effect>Change Tempo . Then drag the slider to the left however much you want to slow the track down (you can also speed it up by dragging right) and click “OK”. Keep in mind that the slower you go the more the effect seems to bog down the computer while it is generating."
Hope that helps.