sorry about my english. i'm not american/ i play on violin and i want to record me in my comuter.. i use AUDACITY. i have a good pick up in my violin (somthing of barcus-berry). andd i connect a PL cable to my comuter. but the problem is that the sound isn't good!!!. it's sound metallic. i will be happy if somone can guide me what i can do. thank you.