Dual System Sound - Digital Video
From Help Wiki
- Use only the T2i model camera for shooting with the 1920x1080 30 fps setting.
- It is recommended to record a "scratch" audio track on the T2i as a backup.
- Audio Recorder needs to be set to 48kHz sample rate.
- There needs to be an audio and visual sync point at the beginning and /or end of each clip.
- Use a clapperboard or clap your hands.