Questions about prm file contents

[qoeep11]

I am a beginner who recently started using klustakwik.

I have a few questions about the contents of the parameter file.

I may be in a past question, but I would be happy if you could answer it.

1. filter_high_factor

I would like to apply a high pass of 8000 Hz. Sampling rate is 40000 Hz

In that case, is filter_high_factor 8000/40000 = 0.2 okay?

2. chunk_overlap_seconds

My measurement data is about 30 minutes. The detection spike increased when the value of chunk_overlap_seconds was large. Is it correct? Are there any appropriate values ​​for  chunk_overlap_seconds and chunk_size_seconds?

3.n_excerpts, excerpt_size_seconds

 What is this value used for?

4.threshold_strong_std_factor, threshold_weak_std_factor

According to Nature Neuroscience, this value was most important for Sorting. Please let me know if there is an appropriate calculation method for each value.

In particular, threshold_weak_std_factor is a concern.

It became long.

Thank you in advance.