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Thank you for the quick response!
Hello! I have been analyzing the plethysmography (PPG) signal from the CHAT and Cleveland Family Study cohorts and was wondering if anyone knew what filtering was used when these files were converted to an EDF. While the pages say "raw," they look smoothed to me and was wondering if they pre-applied a filter (and which type if so) before making publicly available or if the device itself applies a filter. Any insight would be of enormous help!