after listening to both of the radio shows it was a refresher on my knowledge of different audio formats because last semester while taking video production we had an entire section where we learned about sound design, different audio formats, etc so after listening the shows i was able to use my previous knowledge and applied it to this weeks lesson. the shows were educational themselves the notes at the bottom gave me a good idea of what was happening and it made it easy to listen to, another thing that i noticed was that both of the radio shows used sound formats in their own unique way. For example for the ted ed one delayed the background music until the middle of the show while the npr one started off the show with background music so every show has their own unique take on how they use sounds and music to create their own experience.