|MadSci Network: Computer Science|
I am thinking this may be a ground loop problem. There are some things you can try. First, some questions. Do you have the buzz with any of your other sound sources selected ? For example, your CD layer or your tape deck ? Are the tape deck and CD player built in or external items ? Is there a buzz when sound card is disconnected and the inputs that the sound card was using are not connected to anything and are selected ? If your VCR has a location to attach a ground, do the following: attach a heavy wire (14 gauge or thicker) to the VCR ground and to the receiver ground connection (If there is one) and to the computer case and attach the wire to a solid earth such as a cold water pipe. Do any connection changes while the various components (VCR, computer, receiver) are unplugged. See if the buzz is affected. Try different combinations. Use a part of the computer case that is bare metal with a screw in it. The screws holding the computer power supply are a good choice. Make sure that the cable coming to your VCR is making good contact to the VCR. (check both the center wire of the cable and especially the outside shield of the cable.) The ground wires should be as short as possible. Feel free to contact me at firstname.lastname@example.org if this does not work and you want to try more options. Gus Calabrese
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