Hi Todd,
VGA to HDMI converter needs a separate audio input to convert the audio signal into HDMI as the VGA port provides video signals only. However, an USB to HDMI converter can obtain the video and audio signals from the USB port and recommend you to purchase an USB to HDMI converter. You can purchase a converter from a local store or the Atlona AT-HDPIX2 USB to HDMI Converter - 1080p from the following link:
http://bit.ly/WeCKPv
Please let me know if you need further information.
