The podcast episodes provided demonstrate how signal processing techniques are applied in various domains, including finance, astronomy, and healthcare.

In the episode about Renaissance Technologies, the discussion focuses on how the investment firm uses advanced signal processing methods, adapted from fields like code-breaking, to identify market patterns and make profitable trades.

Similarly, the episode on the search for extraterrestrial intelligence highlights how astronomers employ signal processing techniques to distinguish potential intelligent signals from cosmic noise, a crucial challenge in the quest to detect signs of alien civilizations.

The episode featuring Vital Audio's telehealth technology showcases how signal processing can be applied to extract vital signs from a person's voice during routine phone calls, enabling remote patient monitoring and data-driven healthcare delivery.