The Sounddogs blog has posted a 10-step guide for recording crowds. Here are the first five tips for getting great crowd recordings:
1. Be clear as to what type of crowd you need. Crowds who clap at a golf tournament have a different sound than those who cheer at a football game or applaud at a swimming competition. Watch your production and decide according to the setting.
2. It’s very important to contact the organizer before the event you wish to record for proper permission and or permits. Make sure you emphasize the fact that it’s just you (and maybe an assistant) and that it won’t be noticed by the crowd*, this will help people say yes to you.
*in the case you want to record unnoticed.
3. Always prepare and test your sound equipment beforehand. Never wing it, always be prepared.
4. Prepare a list of specific crowd sounds you need: yelling, clapping, cheering, shouting, hooting, whistling etc.
5. If you will be directing the crowd, plan on how you will communicate what you need from your crowd TO your crowd. Some options are: Bring an assistant to orchestrate the crowd, bring a bullhorn and give the crowd directions yourself, or prepare your crowd with pre-set hand signals.
Check out the remaining tips for crowd recording here.