Not sure but this might work.
Get a splitter for the headphone out put. (1/8"?) Use one for your head phones and one to to go into the mic input.
Hope that works.
I want to post a Youtube video of myself playing a digital piano, but the external sound quality from the piano is not great. I would be very grateful for any advice on whether I could record audio directly on to the camcorder. The piano only has midi and headphone outputs and the camcorder has a microphone input. Is it possible to connect these and get sound directly into the camcorder tape/card?
Many thanks to anyone who can help.