This will help to solve debates like the one about the moon landing.
Use this video (https://www.nasa.gov/multimedia/hd/apollo11_hdpage.html - the highest HD I could find) of the flag moving and extract sound.
Then extract the sound (if there is any)
http://people.csail.mit.edu/mrub/vidmag/ is the site that he mentions at the end or the ted talk given that goes into more about the workflow.
Not a programmer so not sure how to use the code to implement it. Any takers?