Epoch Data Extraction Over Concatenated Files using Python Script
Posted: Wed Dec 01, 2021 11:17 am
Hello there,
I am stating my issue below:
I am dumping the samples in 600 msec epoch after every stimulation, into an excel sheet using python.
I have a sampling frequency of 256 Hz. I am decimating the signal by 4. And I am considering 0.6 msec epoch. This gives me 38 samples per epoch per channel. I have 4 such channels. Which gives me 152 samples per epoch. Below is the python script and the scenario to extract the 152 samples in each epoch.
https://drive.google.com/file/d/11lTS1V ... sp=sharing
I have two ov files. At first, I am dumping the samples in every epoch from each of the ov files, in two separate excel sheets. Then I concatenate the two ov files and I dump the samples in epochs (from the concatenated ov file) in a single excel sheet.
I am expecting the samples in concatenated excel sheet should match with two separate excel sheets. That is, the epoch data after concatenation should be the same as before concatenation. However, they do not match. It gives me an impression that there is some delay involved. Below is my concatenation configuration.
https://drive.google.com/file/d/1jTGP6i ... sp=sharing
There are chances that we will miss some important data due to concatenation delay. How should I fix this concatenation issue?
Thanks and Regards,
Swati.
I am stating my issue below:
I am dumping the samples in 600 msec epoch after every stimulation, into an excel sheet using python.
I have a sampling frequency of 256 Hz. I am decimating the signal by 4. And I am considering 0.6 msec epoch. This gives me 38 samples per epoch per channel. I have 4 such channels. Which gives me 152 samples per epoch. Below is the python script and the scenario to extract the 152 samples in each epoch.
https://drive.google.com/file/d/11lTS1V ... sp=sharing
I have two ov files. At first, I am dumping the samples in every epoch from each of the ov files, in two separate excel sheets. Then I concatenate the two ov files and I dump the samples in epochs (from the concatenated ov file) in a single excel sheet.
I am expecting the samples in concatenated excel sheet should match with two separate excel sheets. That is, the epoch data after concatenation should be the same as before concatenation. However, they do not match. It gives me an impression that there is some delay involved. Below is my concatenation configuration.
https://drive.google.com/file/d/1jTGP6i ... sp=sharing
There are chances that we will miss some important data due to concatenation delay. How should I fix this concatenation issue?
Thanks and Regards,
Swati.