TimeDomain: EpiCentre Support

Talk about all things "KVR Developer Challenge" related.
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KVRian
1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 12:54 am

EpiCentre will shatter, rock and rumble your audio. Because there is no manual, and I didn't want to pollute the KVR page, I thought I'd give you a rundown of all the effects here. The three unlabelled knobs at the top, which I refer to as X,Y,Z, are multi-purpose - just hover you mouse over it to see what it does.
  • Foldback: A synth classic with assymetry contol and subtle parallel LP filters to take the edge off.
  • Sinucon: Sine-Waveshaping with Mid/Side mixing.
  • Recticon: A rectifier with a twist, it will start soft limiting itself with high input levels. Pre HP & LP filters are provided to taylor the input signal to generate specific upper harmonics to blend in with the original signal. Good for subtle bite.
  • Broken: A digital OR effect that just breaks everything, extra HP & LP filters are provided to pick out the good bits.
  • Cosinus: Cosine-Waveshaping with Mid/Side mixing.
  • LowPhi: A nasty Samplerate Reducer with input and output LP filters.
  • Quantile: A simple Quantizer with Mid/Side mixing.
  • Residue: A borderline crazy distortion, based on a modified quadratic residue formula. Try this on bass guitar.
  • P 22d7: A tweaked emulation of a hi-gain guitar pedal distortion, multiple clipping stages provides some mean sustain. It also has it's own specialised EQ.
  • P Driver: A highly asymmetrical guitar pedal distortion with mid-range bite.
  • P Blue: Primarily a bass guitar distortion pedal, with asymmetry and presence control.
  • P Octapus: A pedal style octave divider/bass adder, only works with very simple waveforms.
  • P Wah: An emualtion of a classic, uses ZDF filter for a smooth sweep.
  • Twins: Twin ZDF Bandpass Filter network envelope follower, thin and very resonant.
  • Telebox: Made primarily for the 'call and answer' effect with vocals. Also try this on a trumpet/brass sections with low drive, for a vintage feel.
  • RingSting: An emulation of a diode-based ringmodulator, with an envelope for some 'drunken sailor' sounds. An old and useful mixing trick to rough-up vocals is to use a dash of ringmodulation in parallel.
  • Bi-Trem: From straight tremolo to auto-pan. Works quite differently from a regular tremolo, this adds the LFO directly to the input signal and then passes it to a non-linear function. Bias control is available.
  • LP 12CC: A unique ZDF 12dB LP Filter. Cutoff control is calibrated in octaves for easy automation.
  • BandShift: A low rate frequency shifter, where the left goes up and right goes down for an auto-pan like effect. Post filters are provided to taylor it to a specific range.
  • Slurr: An approximation of slew-rate limiting. Kind of like the filter you never wanted for x-mas but got inanyway.
  • Soft C: A soft clipper.
  • Soft S: An unorthodox soft clipper with some mid/side processing.
  • FastComp: Just like the name says, it fast. Works best just to trim 3dB or so. Has a non-linear knee.
  • Dreifach: Means "Triple" in German. A 12dB crossover feeds three clippers in parallel.
  • Tweevoudig: Means "Twofold" in Afrikaans. A three band splitter feeds the low & mid band into seperate foldback distortions - the highs are bypassed. Asymmetry is available for the mid band.
Effects are custom coded in c++ and oversampled where useful. GUI created by Sebastian Heemsath aka Halma.

For suggestions, love/hate mail, bug reports, and usage examples - feel free to post here.

Regards
Andrew
Last edited by Ichad.c on Sun Aug 10, 2014 9:52 am, edited 1 time in total.

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 1:15 am

Dang double post - my browser is either honky, or I'm too hungover :smack:
Last edited by Ichad.c on Sat Aug 02, 2014 1:21 am, edited 1 time in total.

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 1:19 am

Will make some presets in the coming week.

P.S. Be careful with this effect, it can get very loud, an input level of -12dB/-6dB is recommended. Or a brickwall limiter.

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KVRian
1058 posts since 9 Apr, 2012

Post Sat Aug 02, 2014 11:25 am

Hey Andrew,

discovered that the LOW TEQ appears to be flipped somehow. Boost = Cut. HI TEQ fuctions properly. :)

Regards
Sebastian
Underground Music Production: Sound Design, Machine Funk, High Tech Soul

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 11:33 am

Halma wrote:Hey Andrew,

discovered that the LOW TEQ appears to be flipped somehow. Boost = Cut. HI TEQ fuctions properly. :)

Regards
Sebastian
Thanks for the bug-report. Seems I flipped the values when I changed to the version3 skin. Will fix tomorrow!

KVRAF
2496 posts since 2 Jan, 2008 from denmark

Post Sat Aug 02, 2014 11:41 am

this doesent show up in mixbus 2.5

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KVRAF
5713 posts since 11 Feb, 2005 from Bordeaux France

Post Sat Aug 02, 2014 1:01 pm

I like this one.
You can't always get what you waaaant...

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 1:20 pm

S-N-S wrote:this doesent show up in mixbus 2.5
Hmm, this is a tricky DAW - after some testing, it seems that it has little to none MIDI support and thereby my patch saving system. I did make a beta version here that sucessfully loads into mixbus 2.5, but I'll have to runs some more tests - give me another day and I'll get back to you.

Regards
Andrew

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 1:21 pm

stanlea wrote:I like this one.
Thanks!

KVRAF
7111 posts since 17 Feb, 2005

Post Sat Aug 02, 2014 7:15 pm

CPU use is a bit high, just having it loaded is about 7% here.
The In and Out knobs (or at least I think they are)? I think the right knob was changing distortion character slightly looking at it on oscilloscope.

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sat Aug 02, 2014 11:08 pm

camsr wrote:CPU use is a bit high, just having it loaded is about 7% here.
That doesn't seem right, the worst figure I got from a betatester was 4% - on an oldish AMD, on my i5-2400 @ 3.1GHz and in Ableton I can't get it over 2%. Does the CPU decrease when the GUI screen is closed? Might sound like an odd question - but when the GUI is closed and there is an input of zero, the plugin should deativate itself after a while(the time it takes depends on effect - some are dynamic internally, so the buffers need to settle). There is some more CPU saving stuff that I'll implement later on but would probably only shave off 10% or so...except if I switch some stuff to use AVX instead of SSE2 - though it's support on AMD isn't broad - mileage will vary per effect though.

If I might ask - what DAW are you using? And what *specific* CPU? Soundcard? Maybe - if the DAW isn't too big, I can download a demo to see what is going on.

Anybody else getting high - i.e. over 5% CPU?
camsr wrote: The In and Out knobs (or at least I think they are)? I think the right knob was changing distortion character slightly looking at it on oscilloscope.
The top three knobs change their function depending on what algorithm is used, internally they are just x,y,z. Hover your mouse over them - a tooltip should appear to tell you what it is currently assigned to :wink:

KVRist
96 posts since 13 Feb, 2008

Post Sat Aug 02, 2014 11:46 pm

Tweevoudig is dutch :)
Why some Africans use it now, is another story.

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sun Aug 03, 2014 12:00 am

nr1killabee wrote:Tweevoudig is dutch :)
Why some Africans use it now, is another story.
And probably Flemish too :wink:

Can understand the latter better.

P.S. The 1x German name and 1x Afrikaans name is to represent me and Halma's countries, in unity and co-operation.

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KVRian

Topic Starter

1085 posts since 8 Feb, 2012 from South - Africa

Post Sun Aug 03, 2014 12:10 am

Ichad.c wrote:
S-N-S wrote:this doesent show up in mixbus 2.5
Hmm, this is a tricky DAW - after some testing, it seems that it has little to none MIDI support and thereby my patch saving system. I did make a beta version here that sucessfully loads into mixbus 2.5, but I'll have to runs some more tests - give me another day and I'll get back to you.

Regards
Andrew
Ichad.c wrote:
S-N-S wrote:this doesent show up in mixbus 2.5
Hmm, this is a tricky DAW - after some testing, it seems that it has little to none MIDI support and thereby my patch saving system. I did make a beta version here that sucessfully loads into mixbus 2.5, but I'll have to runs some more tests - give me another day and I'll get back to you.
Okay, after more testing, MIDI seems like it is supported in mixbus 2.5 :phew: It doesn't however seem to recognize the "output as stereo pair" and "mono use OK" flags. "output as stereo pair" is for Cubase - so that it links L/R channels in the mixer and "mono use OK" is to inform a host that it can be used on a mono channel without problems. Think I'll have to branch the project into 2 versions - one for mixbus users and one for the rest, will this be okay with you?

KVRAF
2496 posts since 2 Jan, 2008 from denmark

Post Sun Aug 03, 2014 12:37 am

hi ichad

yes that would be ok with me,im interested in trying this out:)

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