Support

If you have a problem or need to report a bug please email : support@dsprobotics.com

There are 3 sections to this support area:

DOWNLOADS: access to product manuals, support files and drivers

HELP & INFORMATION: tutorials and example files for learning or finding pre-made modules for your projects

USER FORUMS: meet with other users and exchange ideas, you can also get help and assistance here

NEW REGISTRATIONS - please contact us if you wish to register on the forum

Users are reminded of the forum rules they sign up to which prohibits any activity that violates any laws including posting material covered by copyright

1 pole lowpass filter

For general discussion related FlowStone

1 pole lowpass filter

Postby borodadada » Fri Jul 17, 2015 12:21 pm

Hello guys, i want create simple filter use site http://www.micromodeler.com/dsp/, but i dont understand how work parametr start freq 0 - 0.5
http://rghost.ru/7zqvqbL2L/image.png
borodadada
 
Posts: 47
Joined: Sun Jun 02, 2013 5:58 pm

Re: 1 pole lowpass filter

Postby martinvicanek » Sat Jul 18, 2015 2:54 am

I have an article on filters at http://flowstone.guru/blog/digital-filt ... mechanics/ which you may find useful. You can also download a set of 1 pole filters here: http://flowstone.guru/downloads/first-o ... e-filters/ .
User avatar
martinvicanek
 
Posts: 1328
Joined: Sat Jun 22, 2013 8:28 pm

Re: 1 pole lowpass filter

Postby borodadada » Sat Jul 18, 2015 9:02 am

In 1 pole LP filter.
Code: Select all
stage(0)
{
abs = 3.4e38|0.999999|0.1;
}

which means this line ?
Code: Select all
out  = ((out&abs) > 1e-11)&out;

and this
1e-11 ?
borodadada
 
Posts: 47
Joined: Sun Jun 02, 2013 5:58 pm

Re: 1 pole lowpass filter

Postby martinvicanek » Sat Jul 18, 2015 12:08 pm

That is a way to prevent denormals, see viewtopic.php?f=4&t=2808#p14876
User avatar
martinvicanek
 
Posts: 1328
Joined: Sat Jun 22, 2013 8:28 pm


Return to General

Who is online

Users browsing this forum: No registered users and 73 guests

cron