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. Author manuscript; available in PMC: 2010 May 30.
Published in final edited form as: J Neurosci Methods. 2009 Apr 1;180(1):185–192. doi: 10.1016/j.jneumeth.2009.03.022

Figure 6.

Figure 6

The range-encoded difference algorithm improves its compression ratio as high-frequency information is removed from the recorded data. Compression ratio calculations are based on 18-bits of information in each sample. Reported data represents 2,255,061,204 samples (69,267 seconds) from a macro electrode (white circles) and micro electrode (black diamonds). The relatively low impedance of the macroelectrode compared to the microelectrode yields a lower thermal noise and better overall compression.