What exactly comes out of a Neuropixels probe, and in what format is it stored? · Lobeworks/17

Digital samples, about 125 Mbit/s per probe.

What exactly comes out of a Neuropixels probe, and in what format is it stored?

Digital samples, about 125 Mbit/s per probe. SpikeGLX writes them as flat binary files (.ap.bin for spikes, .lf.bin for the field) of 16-bit integers, channels interleaved sample by sample: 384 channels plus one synchronisation channel, 385 in all. A text .meta file beside them gives the gain, the rate and the site map needed to turn counts back into microvolts and positions.