Abstract:
Methods, systems, and media for synchronizing media content using audio timecodes are provided. In some implementations, the method comprises: identifying, using a secondary device, a media content item that is being presented on a primary device; detecting, using the secondary device, a tone embedded within a portion of audio content of the media content item; identifying, using the secondary device, a current playback position of the media content item on the primary device based on the detected tone; determining, using the secondary device, supplemental content relevant to the media content item at the current playback position; and causing the supplemental content to be presented on the secondary device.