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Hello! I was wondering how accurate the clock of a Biosemi Active Two amplifier is. Specifically, since the XDF format, which is the default file format when recording with Lab Streaming Layer (LSL), also records time stamps with every sample, I was wondering which clock I could trust more. The one ...

We are sending triggers through the parallel port on the USB box to record trial start, fixation start, etc. directly in the BDF file. However, the triggers end up in a separate data channel, which we then have to parse to extract the triggers. EDF+ supports annotations , and it would be great if we...

Thanks Coen, it's good to know that I can trust the BDF header!

Hello! I'm a bit confused about the lowpass filter settings used during recording. I have an ActiveTwo amp, and I usually set the speed dial mode to 4 (sampling rate 2048Hz). In ActiView, I select a decimation factor of 1/4 to get signals with a sampling rate of 512Hz. According to your website, the...