Audio tape transforming to computer and adjust the playing speed

[luojuan]

Dear all,
I have a audio tape recorded when the recorder was at low battery
so when played it sounds funny. Now I want to digitize this tape
in fact this is just a human conversation. I have a River past
audio capture installed on my computer but it can not change the
speed of playing.
I am wondering how can I make the sound normal while recording it.
Does anyone have any suggestion on that?

Thanks a million!

Luo