Q gave us the example of PixelKnot to hide hidden text inside of photos. Is there anyway to hid data in audio or video files? and how would you identify hidden data?

The speech that got President Trump elected. https://www.youtube.com/watch?v=G2qIXXafxCQ

Q said on many occasions to, "listen carefully". Here is the a link to the background music.

https://www.youtube.com/watch?v=dxK9cmPdIe8

This really got the Almonds Activated