A:Answer Thank you for your question. Our Insignia™ RCA to HDMI Converter is designed to take RCA (red, yellow, white) inputs and convert them to an HDMI output. If your RCA home theater system has RCA outputs for audio, and your PC desktop has an HDMI input, then this converter could potentially work to connect the audio from your home theater to your PC's HDMI port.
However, HDMI on a PC is typically an output for video and audio to a display, not an input. For your PC to receive audio from your RCA home theater system, you would likely need an audio interface or sound card with RCA inputs.
Therefore, this converter is probably not the right solution for your specific setup. It's designed to send audio and video to an HDMI display, not to receive audio from an RCA device into a PC's HDMI port. You would likely need a different type of device to get the audio from your RCA home theater system into your PC.
If you have any other questions or need further assistance, feel free to ask! - Mae | Insignia Support