I would like to record the demo music on our Yamaha CVP 201 electronic piano, preferably by connecting it directly to a recording device's input.
My stereo requires a L and R input so I use the 3.5mm splitter and the RCA cable to connect an MP3 player or computer (or other device with just one 3.5mm output) to the stereo.
The piano has a 6.5mm output so the converter is needed to plug in headphones, etc. I am thinking I could plug the 3.5mm splitter into the converter, connect the dual RCA cable to that, and somehow connect the other end of the dual RCA cable to the computer's microphone input (no line in).
According to this website, this is possible and is known as reverse wired. I would need something like this I think: https://www.amazon.com/USB-Video-Audio-Grabber-Recorder/dp/B01GSJS0V2
First, I would like to confirm that such a setup would even work. Secondly, this question mentioned that connecting line out to line in from the same device could damage the hardware. Since this is from one device to another, would this be safe? Or would the voltage levels coming out of the piano overwhelm the computer's microphone input? I am assuming that since the piano has a 6.5mm output, like an electronic drum kit, the voltages are pretty low since they are meant for headphones, not speakers without amps.