I am looking for a program that can remove the laugh track from a video file. If possible, free, Windows 7 and can batch process.
iZotope RX plugin is used to remove instruments bleed from vocal tracks, but I believe you need to provide a separate track which would contain laughter, in order for the plugin to extract the signature. RX is considered as one of the best plugins for these things, so I don't believe there are any ways of doing it automatically.
Similar plugins include MAGIX Spectral Layers Pro and Adobe Audition CC, but I believe iZotope RX is considered the most specialized for de-bleeding.
Audacity might be worth a try. It can remove background noise and does batch processing.