Knowledge Base

Test an Unsupported Setup with Viso

Aim

To test the synchronicity of video and audio, or multiple videos in a Viso setup with unsupported cameras, or computers.

Procedure

1. Set a timer display running on a computer monitor (preferably with both digital and analog display) and play music (not on the same computer as Viso Recorder). Make sure no background programs are running on the computer.
2. Make a session with audio in the normal way.
3. After the normal maximum recording time, give an audio and visual cue (e.g. click your fingers) and stop the recording.
4. Check the recording length in MediaInfo (http://www.mediainfo.sourceforge.net/en) and number of frames in GSpot (http://gspot.headbands.com). Use the frame rate to determine if any frames are dropped.
5. Go to the moment when you gave the cue and check if the audio and video are in sync, and if multiple videos are in sync.

Note that a small time discrepancy is not necessarily a problem (and is normal); it depends entirely on the accuracy with which the audio and video need to be reviewed.

Source: Viso 12 Setup Manual - Test Unsupported Setup, Noldus Information Technology