Crowd noises are fun. The trick is getting sound effects that match the quantity of people you want and the kind of space they are in. I grabbed some nice, free Creative-Commons-licensed sound effects from these people:
- Crowd in a Church by Jaava73 used for the nice murmur of a large crowd.
- Polite Applause by Joedeshon used for most of the applause sounds.
- High Quality Applause by Gregory Hopkins used for the higher-energy cheers plus applause moments.
There were some other CC-licensed effects used in the episode that are attributed here for earlier episodes in which they were first used.