The Origin Forum
File Exchange
Try Origin for Free
The Origin Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ | Send File to Tech support
Username:
 Password:
Save Password
Forgot your Password? | Admin Options

 All Forums
 Origin Forum
 Origin Forum
 Difference Smoothing - FFT Filter and FFT Filter		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

AnnikaGo

Germany
4 Posts
Posted - 10/21/2021 :  09:15:14 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release: OriginPro 2021b (64-bit) SR1 9.8.5.204
Operating System: Windows 10

Hello,

I have a question concerning Origin's options for FFT Filtering: What's the difference between the FFT Filter Option in the smooth dialog box (https://www.originlab.com/doc/Origin-Help/Smooth-Dialog or https://www.originlab.com/doc/Origin-Help/Smoothing) and the FFT Filter (https://www.originlab.com/doc/Origin-Help/FFT-Filter)? I get different results using the same cutoff frequency although both should be low pass filtering and do not understand why. Can anybody help?

Thank you very much in advance,
Annika

YimingChen

1609 Posts
Posted - 10/21/2021 :  2:54:39 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Please check this help page on the algorithm of smoothing with FFT filter method. It has some extra steps to handle the baseline:
https://www.originlab.com/doc/Origin-Help/Smooth-Algorithm#The_FFT_Filter_method

James
Go to Top of Page

AnnikaGo

Germany
4 Posts
Posted - 10/21/2021 :  3:35:36 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Great, that helps a lot. Thank you so much!
Go to Top of Page
  Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000