68 Royalty-Free Audio Tracks for "Vcf"

A little tune where uoki-toki polivoks vcf and intellijel μvcf are acting as vcos. I use one more sound source and that’s noise for the rhythmic sound. No sequencer. No midi. No keyboard. No over dub. Don’t know why i write this… it’s an nice experiment anyway.

Right channel the sin-wave. Left channel the output from uoki-toki polivoks vcf when i manually sweep the filter frequency. Resonance at max.

Two filters playing a melody. The filters are uoki-toki polivoks vcf and intellijel μvcf.

In the right channel you hear uoki-toki polivoks vcf. In the left channel is the sound of intellijel μvcf. They are playing the same tones. The sounds have the same envelope but respectively vca are also affected by attenuated lfos.

Test of how uoki-toki polivoks vcf handles sin-wave (ca 270hz) when the filter is self-oscillating. I bring the uoki-toki polivoks vcf to self-oscillation and tune the vcf to ca 270hz too. The vco is also tuned to 270hz. In this test i connect the same lfo to cv1 on the vcf and 1v/oct on the module i use as vco (intellijel μvcf). I let the lfo run. Cv1 on vcf pot at 100%. They are playing together. The vco is connected to the in on the vcf. Confused explanation. . . But at least not in swedish.

I let both the vco (intellijel μvcf) and the uoki-toki polivoks vcf play a little melody, the same. The vcf is in self-oscillation and cv1 at 100%. It does not track perfectly, but could be useful.

Sample and hold + vcf and manual filter sweeps.

Test of how uoki-toki polivoks vcf handles sin-wave (ca 270hz) when the filter is self-oscillating. I bring the uoki-toki polivoks vcf to self-oscillation and tune the vcf to ca 270hz too. I let the lfo sweep the frequency. Cv1 pot at ca 100%. Hmmm interesting. . . .

Don’t know if my english is correct. . . Butt i guess you get it, dear reader. Test of how uoki-toki polivoks vcf handles sin-wave (ca 270hz) when the filter is self-oscillating. I bring the uoki-toki polivoks vcf to self-oscillation and tune the vcf to ca 270hz too. I let the lfo sweep the frequency. Cv1 pot at ca 70%. What happens. . .

Test of how uoki-toki polivoks vcf handles sin-wave. I tune the module i use as sin-oscillator (intellijel μvcf) to ca 270hz. I connect it to uoki-toki polivoks vcf. I let a sin lfo sweep the filter, cv1 pot at ca 70%.

Strange modular bass loop. The file is loopable. Main modules is intellijel μvcf, uoki-toki polivoks vcf, synthrotek dirt and dinsync modseq. Thanks for dropping by.

Sinus wave connected to the filter cv1 in sweeps sound from mfb osc-03some reverb from ladik d-330(i have modified my wasp filter to achieve more self resonance. ).

A modular synth composition.

Basically i connected one lfo to the polivoks in. Now when i think of it. Wonder if that added something…. And how much. And to cv1 i connected a square wave and to cv2 a wide frequency sine wave. Resonance at max. Think i have to reanalyse this patch later… i’ll be back!.

Sinus wave connected to the filter fm1 in sweeps sound from mfb osc-03some reverb from ladik d-330.

Warning: harsh noise with resonant malefactors. Bad q ! bad q!. Noise sound through analog phase shifter and steiner parker filter through a holtech-based delay. I imagine this as a soundtrack to an ultraviolent horror movie scene.

I made the vcf self-oscillate at a frequency of ca 270hz then i connected a sinus wave vco to cv1 and swept all the frequencies.

Sinus wave connected to the filter cv1 in sweeps sound from mfb osc-03some reverb from ladik d-330.

Dark bass sound made with the following modules as main actors dinsync modseq, doepfer a-124 special edition, uoki-toki polivoks vcf, intellijel μvcf and synthrotek dirt. I'm exploring my filters and try to use them in different ways.

A kick drum did to my psytrance project called sonicmancer. I use u-he bazzile, filter resonate envelope in a sine wave. Hope u enjoy. Send me the track u did using this. . . I wanna listen =).

Same patch 3 drones. I let chaotic lfos control pwm and filter.

Another beat. . . Made with my modular synth. But a beat is a beat. . . Or something. . .

Very electronic. What else do you need to know. Do something with it. Let me know/hear :-) cut it up. Loop it. This is an unedited recording. (as usual. . . ).

It's sooo hot in sweden right now! 30 c where i live. Luckey me having a cool modular synth. All previous records are gone. This is the hottest may since 1850-ish.

Today i'm supposed to play with my modular, or anything. As long as i'm not disturb the boys watching gremlins down stairs. . . Okay. I put some modules out for sale. Made this. The sound is generated by self oscillating vcfs. I love sinus wave. I will sell my triple oscillator now. It does not have sinus wave! the randomness is generated to old fashion way. I don't have any fancy random trigger modules. Bla bla bla. . . I stop there.

As the title says. . . Playing around. Added a beep and a sample. Works as a loop if anyone cant get enough :-d.

Simple beat in c.

A sound made usingalienxxx sound http://freesound. Org/people/alienxxx/sounds/343864/and my (gis_sweden) sound https://www. Freesound. Org/people/gis_sweden/sounds/344087/.

Cross fm modulated filters performing a painful dance on your eardrums. This is noise but with a musical and rhythmic trace. I keep coming back to my vcfs…?.

Cool sounds from filter. The two filters filter a tri-wave. The filters are almost self oscillating and are modulated by an lfo. Natural tones. And some spring reverb and analog delay.

It becomes clear when i record with audacity and can actually see the attack and decay. I’m playing with alm pip slope. With this module you can cv control the attack and decay. As oscillator i use intellijel μvcf in self-oscillation mode. I fm-modulate this filter/oscillator with a tone from uoki-toki polivoks vcf. The semi random trigger is really two triggers connected to an or gate. Pitch is from analogue systems rs-40 (sample/hold and noise). I can listen to this for a looong time. Retro sound.

Sold a module. Now there is room fort dirt again. The name is well-deserved. Dirt is a filter module from synthrotek. It's so strange that i wonder if the person who built it got it right. . . It's a kit. But i bought the module second hand.

Yep, analog filters. . . Everything is analog!no, wait the reverb is digital. And this recording. But the noise that reaches your ears is analog. My little modular synth is playing a patch just for you. Or world is a big ad/da converter!!!. I failed at the fade out. . . Sorry for that.

A third version of https://www. Freesound. Org/people/gis_sweden/sounds/352940/. Now i let the alm pip slope affect a filter. I play a little sequence made with cvlfo , clock divider, attenuverter, quantiziser. The way i usually do…. But the interesting thing is the cvad (?) voltage controllable envelope generator. But in the case of alm pip slope you just control attack and decay. Seems to be enough. As in the other versions of this sound i connect one lfo to attack and a second lfo to decay. But this time i connect the vcad to control the frequency of a filter. Interesting. I wish i had two more cvlfos… should open up for rhythmical usage. I use no vca or adsr. I have connected the vco straight to the vcf and the vcf to mixer. In the beginning i have the frequency pot at 2 a clock then i gradually move it clock wise and let the vcad take control. 1 minute in the pot is fully clock wise. The vco is playing a sawtooth wave. If you dl and inspect the wave you can see that in the beginning and the end it is a sawtooth wave, but in the middle part the filter affects the wave form.

Creating slight variations in a simple beat with control voltage. All analog gear in my modular synth. Slightly "mastered" in audacity (normalization, compression, limiter).

A loop with hi-pass filtering in action!.

Nice trick working with doepfer a-101-1 vactrol vcf. Noise to lp in. Gate to cvf in 1 out straight to mixer. Low frequency. High emph. Lp 0, bp about 5 and hp 0. Added a bass and my sampled voice. . .

Filter sweep with modded dirt filter.

Sound created by square wave lfos, attenuverters, hard synced vcos, delay, reverb and filter. I think it nice. Kraftwerkish. . .

It does not sound electronic in the way i like, but. . . Sequencing modular etc with fl studio. Totally noob!.

Some clips of my diy analog synth on the build.

I have built a nonlinearcircuits sloth lfo, the regular version. Sloth is a chaotic lfo. The output is based on the lorenz system. It is a system of ordinary differential equations. It is notable for having chaotic solutions for certain parameter values and initial conditions. In particular, the lorenz attractor is a set of chaotic solutions of the lorenz system which, when plotted, resemble a butterfly or figure eight (very much from wikipedia). The sloth has two outputs x and y. Think of them as coordinate pairs. The output will probably never repeat itself but there is a pattern. I have built the regular sloth it usually takes approx 15 seconds to make a rough figure 8, one cycle in the “butterly”. Now i’m testing the module in different ways. In this sound i have connected white noise to a filter. The filter frequency is controlled by sloth (x output). In this patch i have set the initial frequency low. That’s why there is a low humming wind noise between the “tops”. The output sound from filter goes to reverb. The sound is more a study of sloth behavior than an attempt to create a great wind sound.

A little something i made on my modular. The sound is a little edited in audacity.

It is what the title says "modified doepfer a-124 vcf5 wasp filter"listen and you will understand ;-)i the middle of the sound/beat i turn up resonance. I have connected cv2 to the bass pitch signal. Funny effect.

Drones made with an analog modular synth. The drones are generated by a generative patch.

A loop. A dirty loop colored by dirt. This time edited i audacity. . . Compressor and limiter.

Bubbly sounds from modular synth :-).

Electronic minute no 27 - combined forces. A patch with 2 unrelated patchesthey share an lfo. . . A) 2 lfos playing with a-101-1 vactrol vcfthe filter is feed with a square wave. B) a more advanced patchtriggers from env. Follow. Feed with cv from jerkoff (chaos)noise to a slew controlled by a sloth lfos/h to oscosc to vcathe vca is controlled by the same lfo as the slew but inverted!. Evaluation of patch/soundone cycle is - cycles? about 1min - goodonly short sounds - no, and thats goodamplitude variation - fairly goodpitch variation - yes, goodtimbre variation - not bad at allmusical value - i should consider this musicalentertaining - think so, yes.

fluctuating random voltages patch example from doepfer. De/a100_man/a100_patch. Htmi made the patch in vcv-rack. The patch is meant to emulate the "fluctuating random voltages" of the buchla 266 source of uncertainty module. In this patch i use the "fluctuating random voltages" to modulate a filter. The filter is filtering a square wave tuned to a c (or close to a c).

Or some acid sounds… and drone. All in oneused filters are> doepfer a-124 special edition, the wasp filter> uoki-toki polivoks vcf> intellijel μvcfdidnt plan to upload this to freesound, but read this. Okay filter freaks. . . The frequency analysis reveals a peak around 20khz. Through all of the track? almost. What is that? (when i converted the file to mp3 the peak disappears. . . ) one clue could be that i use the filter as vcas too?i have applied normalisation, compression and limiter in audacity. A "documentary" at https://www. Youtube. Com/watch?v=wtzfkg3mxcgin the film i use the mp3-file.