I have an electric keyboard/piano in my room and i bought a 3.5mm stereo cable to connect it and my computer so i can record with audacity. But whenever I plug it in, it creates an instant high pitched whining that totally ruins the sound quality and the recording. Is this just a bad cable and should i try ordering another one? The cable i bought was from amazon the link is below. Thanks
http://www.amazon.com/gp/product/B000V0BUX0/ref=cm_cr_mts_prod_img
http://www.amazon.com/gp/product/B000V0BUX0/ref=cm_cr_mts_prod_img