Hi,
Yesterday, I asked the question about how, and when to apply a high pass filter
which I now understand.
So now the question is, how, and when to apply a low pass filter.
Is it as obvious as, the opposite from a high pass filter, eg.
To get rid of some high frequencies ?

Thanks
John

Yep, exactly. 
 
Also, a bandpass filter will get rid of high and low frequencies leaving only the middle frequencies that fall within the bandwidth of the filter.  (Overly simplified, but essentially how it works.)  A band cut filter does the opposite.

John

CoteRotie


Yep, exactly. 
 
Also, a bandpass filter will get rid of high and low frequencies leaving only the middle frequencies that fall within the bandwidth of the filter.  (Overly simplified, but essentially how it works.)  A band cut filter does the opposite.

John

          John
          There is no bandpass filter in the PC module, right ?


          John

jwh

CoteRotie


Yep, exactly. 

Also, a bandpass filter will get rid of high and low frequencies leaving only the middle frequencies that fall within the bandwidth of the filter.  (Overly simplified, but essentially how it works.)  A band cut filter does the opposite.

John

        John
        There is no bandpass filter in the PC module, right ?


        John

Well - there's a million way to skin this cat...


The equivalent of a bandpass is to use both a high-pass and low pass filter together. The high-pass will set your bottom frequency limit and the low-pass will set your upper frequency limit and the result is - a bandpass.


A good thing to take a look at to get an understanding of filter types is maybe the Sonitus EQ. There you can you see buttons on that EQ that represent a low-pass, a high-pass, and a bell-shaped filter. These filters can can be used to either boost or cut frequencies. The Q control for a filter controls how narrow or wide the filter action should be.


Hope this helps just a little bit.

SuperG

jwh

CoteRotie


Yep, exactly. 

Also, a bandpass filter will get rid of high and low frequencies leaving only the middle frequencies that fall within the bandwidth of the filter.  (Overly simplified, but essentially how it works.)  A band cut filter does the opposite.

John

      John
      There is no bandpass filter in the PC module, right ?


      John

Well - there's a million way to skin this cat...


The equivalent of a bandpass is to use both a high-pass and low pass filter together. The high-pass will set your bottom frequency limit and the low-pass will set your upper frequency limit and the result is - a bandpass.


A good thing to take a look at to get an understanding of filter types is maybe the Sonitus EQ. There you can you see buttons on that EQ that represent a low-pass, a high-pass, and a bell-shaped filter. These filters can can be used to either boost or cut frequencies. The Q control for a filter controls how narrow or wide the filter action should be.


Hope this helps just a little bit.

          Yes it does, thanks !


          John  

There are also shelf and boost/notch filters.  They boost or cut certain frequencies without affecting frequencies outside the frequencies of interest.  You'll get good at filters by doing a lot of experimenting and listening....

John

I need a "good stuff/bad stuff" filter... Unfortunately I think that's me. sigh

Glen,

right up there w/ a talent knob.  Crank that sucker up to 11 ....