Added a time resolution slider

[hansvi]

Increasing time resolution by narrowing the fft window function. The window function now is a Kaiser bessel function.

Also, I removed some variables that were not used.. They are just commented out, so please review this and if there is a reason for this, please let me know.

[miek]

This is looking like a nice feature, thanks for submitting and let me know what you think about the proposed changes.

[hansvi]

I will be making the changes you requested.

[hansvi]

I've been doing my own improvements in the meantime: I now use the liquid-dsp implementation of the kaiser window, and I made the beta parameter configurable as it is also handy to be able to tune the fft window shape.

[hansvi]

Hey miek, Can you take another look at the changes? I think the changes should be done.

[catkira]

ping is this repo still active?