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Statistics: Posted by cephalopod — 16 Aug 2015, 05:19
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Statistics: Posted by caco — 06 May 2011, 09:50
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I have been tweaking the SVF filter as a test so far and currently have:
-Reduced CPU usage by 50%
-Now using 64-bit floating point processing internally instead of 32-bit
-Added an outlet containing an array of the bins used to plot the frequency response
-Anti-aliased the frequency response to make it look nicer and added the ability to control the opacity of its fill
-Fixed (I think) the CPU spikes sometimes seen when the frequency response was redrawn
When I get time I will do this for the other filters and then release an updated pack but until then let me know if you have any thoughts for improvements.
Statistics: Posted by caco — 05 May 2011, 13:43
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I haven't had chance to test the user module yet but I did plot the frequency response and that looked fine so I hopefully it will work okay. Let me know how you get on and if it is stable I will add it to the filter pack
Download beta version here
Statistics: Posted by caco — 07 Dec 2010, 09:15
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I manage to put filters in another part of the signal flow and I'm starting to have a pretty good delay.
but a DC filter would be a good "security device" as I used to have on puredata.
cheers
Statistics: Posted by oli_lab — 06 Dec 2010, 13:03
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Ideally you want this cutoff to be as low as possible so you don't remove your sub-bass, so normally you would highpass somewhere around 20Hz. using a steep filter. There is no reason for this filter to have to be a biquad, any suitable highpass filter would be sufficient. Usine's built in filters go down to a cutoff of 50Hz, as does my SVF highpass so give these a try first. If this cutoff is too high then you can try playing with the filter's resonance to make it a sharper frequency rolloff around the cutoff, otherwise maybe I need to try and improve the stability of my filters to a lower frequency?
Let us know how you get on
Statistics: Posted by caco — 06 Dec 2010, 10:27
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I've been experimenting with multihead delay simulation and what would be great is to have a filter to remove the very low end of the feedback signal.
in puredata, it is possible to set a biquad to zero so it cuts the DC build up but couldn't find anything similar on Usine..
Statistics: Posted by oli_lab — 05 Dec 2010, 20:28
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will be great with the coming next selected balls array of XY pads.
really happy, can build the wide variety of psyche fx i wanted kind of old antares filter / volcano usine special.
just a Q; have to play around with maper curve when using linear input, is there a specific value we should enter for freq?
any idea what's the simplest math conversion /usine patching for log conversion?
Statistics: Posted by 23fx23 — 10 Sep 2010, 22:44
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yep, state variable filter = automagic master filter. Seems to automaticly scoop out offensive upper midrange sounds, add some harmonics and I could swear I hear some compression...?
You spotted some of my dsp tricks 
Statistics: Posted by caco — 10 Sep 2010, 22:00
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Statistics: Posted by gurulogic — 10 Sep 2010, 21:43
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Unfortunately the state variable eq cannot really be modified from its current structure, for a more flexible eq try using the biquad shelves and peaking filters. Maybe I should build an example 3-band eq from them as a sub-patch and add it to the pack as an example?
Statistics: Posted by caco — 10 Sep 2010, 21:27
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I would like to see a little more full featuredness of the state variable eq, ie:-24dB option, adjustable Q and frequency. My first attempt at using it as a quick and easy dj style eq finds the cuts not enough and the midrange a bit narrow for my taste. Otherwise I will definately be using it regularily for basic eq tasks. Thanks and keep up the great work!
Statistics: Posted by gurulogic — 10 Sep 2010, 21:13
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The ultimate improvement could be to he an array outlet which contains displayed bin's of curves, like the the native Usine filter module.
In order to be able to draw them as we want?
But it's far away from a priority...
Statistics: Posted by senso — 09 Sep 2010, 16:05
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The filters haven't changed so no need to update from v1.0 unless you want to play with the example
Statistics: Posted by caco — 09 Sep 2010, 11:23
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and I have few usine audio patch that were awaiting some friendly filters. perfect
thanks a lot Caco!
glad to see some sdk men sharing'
keep the good work'
Statistics: Posted by 23fx23 — 06 Sep 2010, 17:38
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