1. Introduction
https://sccn.ucsd.edu/~mgrivich/Synchronization.html
Goal: properly synchronize events in the EEG experiments and validate the sychronization.
Why? verify that the timing of all data points is known with sufficient precision. Some key points such as the playing of a sound, the display of an image.
Error
- constant offset
- drift: as time passes, the difference increase
- jitter:
2. General Principles
- When possible, use hardware synchronization
- streaming, in general, 50ms is easily achievable, and 1ms accuracy is achievable with effort
- behavior must be validated
3. Audio Synchronization
Playing audio is not reliable with respect to timing. Latencies of 100+/-50 ms are common.