I suggest, gently, that putting effects into a recorder simply adds expense
where none is needed. Effects can be performed better in software where
you can try one out, and then back out of it if you do not like the
result. If you incorporate effects into your original recording, you're
stuck with it.
Both sound forge and gold wave offer effects, though I am unfamiliar with gold wave, I am becoming moreso with sound forge and the effects are generally very good