QUESTION: Does nt always have to be an odd number?

[nikhilchandra]

Describe the issue:

I've been playing around with the spike width parameter nt in Kilosort4 and noticed that when I set it to even values (e.g., 80, 78) it always fails whereas when I set it to odd values, it succeeds without problems. Is there a reason for this?

Reproduce the bug:

N/A

Error message:

N/A

Version information:

Python 3.12.4
Kilosort 4 via SpikeInterface (Visual Studio Code)
Windows 11

[jacobpennington]

Yes, nt should always be an odd numbers since it's used for padding in convolutions.