Recording Setup¶

Hardware¶

Light
- Make sure to have “enough”
- Prevent overexposure
- Is it constant over the experiment (e.g. weather, time of day)?
Camera
- Visibility of participant/setup even when he/she is moving
- Gain
- Shutter
- Aperture
- Codec
- Resolution
- Framerate
- Use progressive (1080p etc.) not interlaced (1080i) scan types
Audio
- Gain (double check to avoid clipping and to avoid low signal/noise ratio)
- Characteristic
- Same sample-rate like the recorded video audio source -> 48khz
- Codec
- Number of Channels
- Microphones decoupled from surface (e.g. desk or camera) to prevent noise
- Sample format (24 bit has more dynamic range)
Storage
- How much space do I need?
- How fast should it be?
- Where to store the data?
  - E.g. netboot (slow but automatic backup) vs external hard drives (fast but insecure).
- Backup your data (SD Cards of cameras etc)
Accessory
- enough extension cables
- check recording quality including attached power supply (audio noise etc.)

How does the visibility of the hardware setup interfere with the intended study/hypothesis?
- Do we need someone holding the emergency button inside the study room? Socialising effects may occur.
How visible is the recording setup?
- Do you need participants to wear microphones/markers?
Can hardware potentially be damaged by the experiment. (e.g. steam in a cooking setup)

Use Vicon recording software in parallel to RSB exports. Vicon recordings can be reprocessed with different parameters for the marker detection algorithms which allows to fix detection problems after the fact. This is not possible with the RSB export. Track the clapperboard in Vicon for synchronization.)