Non power-of-two sampling freq. and sample count (OpenBCI)
Posted: Thu May 03, 2018 2:16 pm
Hi all,
Recently I have received OpenBCI Cyton+Daisy set (16ch version) and I have noticed that the device does not have power-of-two sampling rate. In particular, OpenBCI by Bluetooth connection I can set sampling rate to 250hz if I have 8ch or 125hz if I use all 16.
In the example of 16ch I cannot set the "sample per count" variable so that sampling_rate/sample_per_count is an integer. If I want to use 8 samples per count, I get 125/8= 15.625
Does that influence performance anyhow?
Recently I have received OpenBCI Cyton+Daisy set (16ch version) and I have noticed that the device does not have power-of-two sampling rate. In particular, OpenBCI by Bluetooth connection I can set sampling rate to 250hz if I have 8ch or 125hz if I use all 16.
In the example of 16ch I cannot set the "sample per count" variable so that sampling_rate/sample_per_count is an integer. If I want to use 8 samples per count, I get 125/8= 15.625
Does that influence performance anyhow?