 LoFi filters! i want!!! (vst links plz) |
Hidden identity 
Wicked Producer
Registration Date: 17-02-2005
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basicly the title sais it all,
i want lots more new types of LoFi filters in vst form,
that way all my synths get more sound capasity instead of be needing a new synth, and i dont have any LoFi filter vsts.
for some insain reason there just isnt any around
but some synths come with built in LoFi filters.
what up with that!?
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I'm trying to unfuck my sig.
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23-02-2005 20:59 |
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dirk
Steppa
Registration Date: 14-11-2004
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This is a litle trick I learned from Rob Hordijk .
the output of a digital mixer is alway's 1 sample later than its input . Or in math Z=Z+1 and this is also the formula for a delay or filter .
To get a lowpass filter you feedback the output of a mixer to its input , be carefull with the volume of the feedback signal . To get a highpass filter just invert the original signal and then mix that with the lowpass stuff ( this is subtraktion ) to get notch mix low and high together , to get bandpass subtrakt notch from original .
It works best with digital synths but I did it also in cubase with the effect sends and subgroups .
Good luck trying .
Greetings Dirk .
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02-03-2005 05:43 |
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Daemon79
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I Have absolutely no idea who Rob Hordijk is but do this and your high-pass filter will look like this due to the phase response they forgot to implement.:
http://www.innerlighttheory.com/ch33.pdf
Figure 33-6 on page 16 (or 620 if you've printed the whole book) . Don't read the whole pdf if you want to stay healthy.
But the title of the thread says LoFi so i guess this is maybe what you want.
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02-03-2005 11:04 |
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dirk
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That's a 6th order butterworth lowpass filter and its inversions .
Only if you take a 1 order and then subtrakt you get a perfect highpass , everytime you add an extra pole the highpass gets more imperfect and when you add 5 poles that is the result .
I also think that more than 4 poles are not needed in synths because the difference between 4 and 6 pole lowpass is very smal and with highpass filters you hardly even hear the difference between 2 and 4 poles .
For synths the best filters are , 2 pole state variable with all in and outputs . And then combine them to make more complex filters .
Also imperfections make the sound more interesting don't forget that .
Greetings Dirk .
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02-03-2005 12:55 |
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Daemon79
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Should be ashamad of myself posting so quickly without thinking, guess it's a combination of lazyness and rushing. It was something I remembered from reading the dspguidfe and i posted it quickly without thinking. Plus that I don't really dig on IIR (I liked that SIR-plugin a lot more, you don't happen to now of a program that generates impulses for filters do you, I knew one for reverbs but I can't find the link no more).
btw How do you adjust the cut-off frequency with your little ttick?
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02-03-2005 13:50 |
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dirk
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To ajust the cutoff you change the delaytime , but in this case inserting a delay wil result in a combfilter and chorus/flanger/phaser sounds .
Here the delay is 1 sample so the filtercutoff wil be very low . Its a trick to make digital synths sound more analoge , but it works ofcause with every digital mixer .
Check chapter 19 for full details on filtercutoff.http://www.spectrumsdi.com/ch19.pdf Equation 19-4 and 19-5
And impulse responces from filters I haven't seen on the internet , but can't you make them with SIR ? If it is posible I will try to make some .
Greetings Dirk .
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02-03-2005 16:43 |
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dirk
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You can't make your own impulses with SIR 
Greetings Dirk .
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02-03-2005 17:10 |
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Daemon79
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I've read the book and i know about z-transform and stuff it's just a bit rusty in the brain you know. Maybe you can't find impulse responses for filter on the internet because FFT'ing is supposed to be faster.
But we're getting serious off-topic here
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02-03-2005 19:31 |
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dirk
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Does anybody know a program to make your own impulse responces for convultion vst's .
I know it can be done with Altiverb but isn't there a freeware program somewhere ? Deamon maybe ?
Greetings Dirk .
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03-03-2005 18:24 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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there's also Buzz Effect's called Kraftwork that do LoFi.
and by LoFi you mean sound degration right.... not to be confused with Low Pass?
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04-03-2005 17:11 |
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Hidden identity
Wicked Producer
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yes, by LoFi i mean degrade, i have mda Degrade already, im talking about filters that sort of distort and change sound in a unique way, and i tried seatching online fo rthe kraftwork buzzeffects but couldnt find them, all i found was crap that was not an effect plug. any lkinks (thanks for help so far, please note that although i want a hardwere mixer, i dont have one 
)
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I'm trying to unfuck my sig.
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11-04-2005 22:53 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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oops, www.buzzmachines.com has all the buzz plugins you'd need.
there's also some page in this site that has hundreds of free plgins, and the distiortion, or drive units, will help with the degration sound aspect. oh, or there's izatope trash or amplitube which also make great grittty distortion, anything that make amp moddeling is good.
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12-04-2005 05:58 |
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