jwh
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Low Pass Filter
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
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CoteRotie
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Re:Low Pass Filter
2012/12/01 15:17:28
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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
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jwh
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Re:Low Pass Filter
2012/12/01 15:21:41
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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
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SuperG
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Re:Low Pass Filter
2012/12/01 15:31:36
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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. 
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jwh
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Re:Low Pass Filter
2012/12/01 15:41:26
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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
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CoteRotie
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Re:Low Pass Filter
2012/12/01 18:09:22
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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
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M_Glenn_M
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Re:Low Pass Filter
2012/12/01 19:03:45
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I need a "good stuff/bad stuff" filter... Unfortunately I think that's me. sigh
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AT
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Re:Low Pass Filter
2012/12/02 10:45:04
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Glen,
right up there w/ a talent knob. Crank that sucker up to 11 ....
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http://www.bnoir-film.com/ there came forth little children out of the city, and mocked him, and said unto him, Go up, thou bald head; go up, thou bald head. 24 And he turned back, and looked on them, and cursed them in the name of the Lord. And there came forth two she bears out of the wood, and tare forty and two children of them.
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