Radical Frequencies Dual Precision Oscillator (LMS EE)

Published on Dec 20, 2017 Learning Modular

Playlist:

1.Radical Frequencies DPVCO 1/4: overview (LMS Eurorack Expansion Project)

The Radical Frequencies Dual Precision VCO features a pair of oscillator with excellent tracking (6 octaves is the claim) that go from slow LFOs up into very high frequencies. It offers both linear and exponential FM, pulse width modulation up into the audible range, and soft sync. The advantage of having two oscillators behind one panel is that it features a lot of intelligent normalization, as well as jacks with attenuators to plug in external signals. This first movie features a demo arpeggio showing off the major features, and then demonstrates each of its waveforms and major sections:

0:00 demo
2:51 specs & background
4:07 tuning range
5:13 pulse width modulation
5:58 square wave
7:06 sawtooth
7:45 triangle
8:35 sine
9:17 (repatching & retuning)
10:00 soft sync
11:06 preview of next two movies

For more details about using the Dual Precision VCO (as well as other modules I’ve made videos for), I encourage you to join the Learning Modular Patreon Tribe: https://www.patreon.com/LearningModular. For more on the Learning Modular Synthesis Eurorack Expansion Project for those exploring what module to add to their system next, visit http://learningmodular.com/eurorack-e...

2. Radical Frequencies DPVCO 2/4: static FM (LMS Eurorack Expansion Project)

In this second movie on the Radical Frequencies Dual Precision VCO, I focus on dialing in frequency modulation using the front panel controls, without any external envelopes or VCAs. If you’d like a demo of the differences between linear and exponential FM – and what things like waveshape and offset mean to the resulting tuning – this movie is for you. Near the end, I also demonstrate pulse width modulation, including the great sound you get when you modulate it with an audio oscillator as well. Here is a breakdown of what’s covered when in this movie:

0:00 overview
0:46 triangle versus sine for carrier
1:04 entrainment
1:50 linear FM
6:49 exponential FM
12:11 pulse width modulation
13:18 combining techniques
13:51 cross-modulation

3. Radical Frequencies DPVCO 3/4: dynamic FM (LMS Eurorack Expansion Project)

In this third movie on the Radical Frequencies Dual Precision VCO, I focus on dynamic frequency modulation where I use an external envelope and VCA to dynamically change the FM depth for each note played. I compare linear versus exponential FM, showing where linear is good for tonal and sustained sounds while exponential is good at percussion as well as adding pluck or strike to the start of each note. Here is a breakdown of what’s covered when in this movie:

0:00 overview
0:38 the basic patch
1:20 dialing in enveloped linear FM
3:45 enveloping exponential FM
4:54 FM percussion sounds
5:47 adding an FM strike or pluck
7:49 layering techniques

4. Radical Frequencies DPVCO 4/4: soft sync (LMS Eurorack Expansion Project)

In this fourth and final movie on the Radical Frequencies Dual Precision VCO, I focus on its soft sync function. I explain how sync works, compare soft and hard sync, and play around with creating alternate timbres and glitchy enveloped sounds using soft sync. Here is a breakdown of the final movie:

0:00 an overview of sync
2:28 tuning the master lower than the slave
3:26 tuning the master higher than the slave
5:01 soft sync variations
6:54 enveloping the slave’s pitch (including hard sync comparison)
9:18 layering techniques

Radical Frequencies Modular

"Happy New Year my modular friends with a Radical Frequencies modular 132bpm Psychedelic Techno jam! Patch: The Fm lead is a pulse wave from a RF dpvco with internal pwm and linear fm going into RF Scota vcf (alpha filter only) using band pass output and voltage controlled by RF vc adsr and lucky voltages randomizes the decay times . The Bass is another dpvco with 2 detuned saw waves into RF 12db multi vcf. The Drums are from iPad Launchpad . All sequences are trigged by Beatstep Pro that takes clock from iPad . All sounds are multi recorded into daw though apogee and mytek converters and the lead is mixed with reverb & delay. https://www.radicalfrequencies.com/in..."

Note the player above is a playlist of all videos by Radical Frequencies Modular starting with the New Years jam.

Spotted on discchord

RF Modular 146 Psy Trance analog jam

video by Radical Frequencies Modular

"Live Jam 146bpm Psychedelic with Radical Frequencies modular.
All sounds are analog here!
Kick is from DPVCO the beta vco with an adsr in exp fm and using the sine wave out going into a vca with an adsr.
Hats are the 3rd noise from RF Lucky Voltages into the RF 12dbmultivcf and a vca with adsr.
Bass is from my 5U modular (Oakley VCO into Diode Ladder)
Snare is a 808 clone snare module.
FM Lead is from my new module AD Multi VCO and I use the main out (that can change the waveforms with cv! ) direct into a vca with no filter in between !
The saw wave of alpha dpvco goes into the linear fm of ADMVCO and I’m also syncing it, The exponential fm is connected to a dual looping envelope , the ACV and DCV (both are like pulse width modulations) are controlled by a Befaco sequencer and the Wave CV is connected with Lucky voltages random gates for changing the waveforms which is in clock with the VC ADSR of the final vca that has the decay and release modulated by S&H of Luvky voltages, Beatstep pro is in sync too and triggers the kick - hats and snare and bass . All sounds are multi recorded into daw and the fm lead is mixed with a bit of reverb delay.
https://www.radicalfrequencies.com​"

Radical Frequencies 120bpm electro psychedelic jam

video upload by Radical Frequencies Modular

"Radical Frequencies 120bpm electro psychedelic jam .
Here I use all Radical Frequencies filters : RF SH Vcf for the bass with Dual Precision Vco (saw+pulse from both vcos) through RF transistor mixer ,
The other sound is from 12db multi vcf in low pass mode
Fnally the Scota Vcf with ad Multi Vco making this alien {r2d2) fm lead sound using the internal cross modulation .
Drums are analog as always passing through a hardware compressor dbx .
Sequencers are the muxlicer , korg sq1 , ornament & crime .
Main clock is from RF vc adsr generator , and all the random cv from lucky voltages ."

RF Modular Dub psychedelic jam

video upload by Radical Frequencies Modular

"Radical Frequencies modular psychedelic dub jam !
All sounds are analog :
The Scota vcf is used as oscillator here using also the internal Fm for making this bleeping leads that also pass through an analog delay. Dual precision vco and AD Multi Vco are used for the bassline by sending 3 Vcos mixed through SH Vcf . Kick and snare are analog 808 clones.
Sequencer is the Befaco Muxlicer that is randomized by Lucky Voltages for changing the steps and the amount of retriggers .
All envelopes are the RF vc adsr generators and Lucky Voltages modulates the decay amount of the bass .
https://www.radicalfrequencies.com"

124bpm melodic track with RF modular system

video upload by Radical Frequencies Modular

"This is a video of making music with Radical Frequencies modular system!
There are 3 different synth sounds :
Bass: pwm bass with dpvco through sh vcf
Lead : saw from ad multi vco mixed together with noise from lucky voltages into audio cv mixer using the transistor out and then goes to 12 db multi vcf in low pass mode .
Fm rhythmic sequence from dpvco into scota vcf .
The drums are samples , all synth sounds recorded and mixed in cubase.
https://www.radicalfrequencies.com"

Radical Frequencies modular downtempo analog jam

video upload by Radical Frequencies

"Radical Frequencies downtempo analog jam ! Listen to your speakers of possible :)
Bass from AD multi Vco (saw & square) into sh Vcf.
Lead from dpvco sine wave into waveshaper and after into 12db multi vcf bandpass .
Drums from a modified RD 606 through RF mixer transistor circuit.
Sequencers are Korg SQ1 and Befaco muxlicer."

Radical Frequencies self generated patch

video upload by Radical Frequencies Modular

"This is why we love modular synthesis… let the system do the alien sounds you wouldn’t imagine ;)
#Radicalfrequencies #analog #eurorack #modular #synthesizer #modularsynth #dpvco #transistormixer #audiocvmixer #12dbmultivcf #dualprecisionvco #loopingenvelope #vcadsr #random #complexvco #selfgeneratedpatch #luckyvoltages #aliensounds"

RF Psy Tech analog jam 120bpm

video upload by Radical Frequencies Modular

"Radical Frequencies psy tech analog jam :
the bass is a Dpvco saw and a sub oscillator waveform passing through the SH Vcf .
And the Scota Vcf in self oscillation mode and cross fm through the RF mixer makes those fm bleeps . The kick is an analog 808 clone
https://www.radicalfrequencies.com"

RF Modular self generated krell 2 voice


"RF Modular self generated krell patch with 2 voices .
One sound is from waveshaper and the other from 12db Multi Vcf in band pass mode ."

RF Modular fat analog patch sequence

video upload by Radical Frequencies Modular

"Radical Frequencies simple voice patch sequence :
Listen to the fatness of that sound as the 2 Dpvco saw waveforms passing through the RF Mixer using the transistor output while after goes through SH Vcf - RF Vca and then again to another RF Mixer using the opamp for final output.

The sound is directly recorded dry with no effects !
Check my mixer if you want this warm fat sound in your system https://www.radicalfrequencies.com/in..."

RF Modular 144 bpm jam psytrance

video upload by Radical Frequencies Modular

"Radical Frequencies 144bpm Goa Psytrance jam : AD multi Vco saw wave into RF SH Vcf for the bassline. Fm lead is from dpvco into 12db multi vcf in band pass mode."

Radical Frequencies melodic sequence 70 bpm

video upload by Radical Frequencies Modular

"The source of sound is the Dual Precision Vco (4 different waveforms saw and sine of alpha plus triangle and pulse of beta ) through RF mixer transistor circuit and then into Scota Vcf used as mono in bandpass mode and using the internal cross modulation across with random modulations and lfos. Sequencers are beatstep pro and Befaco muxlicer."

RF AD Multi VCO 123 bpm jam

video by Radical Frequencies Modular

"123 bpm jam with Radical Frequencies AD Multi vco.
Showing a warm and fat bass sound from AD Multi Vco with no use of a filter module , just VCO direct to VCA!
At the start the sound is from the triangle pulse waveform with an envelope adsr modulating the A CV which is actually a pulse width cv feature .
As the sound is initially a triangle wave by increasing the envelope amount we add more harmonics to the sound and that makes it sounding like a saw wave through a low pass filter…
Later in the jam I add through a mixer a second waveform which is the double pulse and then tweaking the pw and offset knobs for morphing the sound differently as can listen the variations of the sound !
The drums are samples from my daw through a revox tape recorder."

Radical Frequencies Dpvco waveforms into Audio & CV Mixer with oscilloscope

video upload by Radical Frequencies Modular

"Here i use an oscilloscope to show you the new RF Audio & CV Mixer module by passing through waveforms from Dual Precision Vco .
You can see and listen the difference between the opamp outputs and the transistor outputs !
The discrete transistor circuit can warm and gradually saturate the sound , and in addition positive saturation it’s different sounding than negative saturation, giving the possibility of choice what sound you prefer!
After mixing single waveforms through the mixer at the end of the clip I mix 3 separate saw waves from different dpvco oscillators for this fat analog sound 🙂 The audio is recorded directly from the mixer into the sound card."

RF Scota Vcf stereo filter sweep

video upload by Radical Frequencies Modular

"Radical Frequencies Scota Vcf stereo filter sweep! It’s a stereo recording with a bit of reverb. Patch : Dpvco saw wave into Scota Vcf and then 2 outputs in stereo going into 2 VCAs just for volume control."

RF modular Ratcheting patch

video upload by Radical Frequencies Modular

"RF modular ratcheting patch in an electronic jam downtempo 80 bpm :
This juicy lead is a Dpvco double saw passing through the the RF Mixer using the transistor out and through the SH Vcf using the 6db output !
The bass is from AD Multi Vco using a double pulse wave into the Scota Vcf in low pass mode.
The kick and snare are analog 808 like clones.
I use 2 sequencers - 2 clock multipliers and a voltage control switch."

RF Modular 130bpm analog jam

video upload by Radical Frequencies Modular

"130 bpm techno analog jam with the RF Modular .
Dpvco here is used separately:
The Alpha Vco is for the ratcheting lead as the pulse out goes through the Scota Vcf.
The Beta Vco makes the square bass then through the SH Vcf. kick - snare and hats are analog and mixed through the RF Audio & cv mixer. The hats are made by feeding a noise through 12db multi vcf in bandpass mode controlled by RF Vcadsr envelopes.
Sequences and triggers from Beatstep pro . The RF VC adsr envelopes are voltage controlled in decay and release from RF Lucky Voltages .
https://www.radicalfrequencies.com"

New Radical Frequencies VCF 1 Eurorack Module

Published on Jan 4, 2016 Kri Samadhi

"Radical Frequencies VCF 1 eurorack modular synth"

Radical Frequencies Dual Precison VCO: teaser

Published on Dec 15, 2017 Learning Modular

"The intro jam to a four movie set I'm creating on the Radical Frequencies Dual Precision VCO, showing off its linear and exponential FM as well as frequency-rate modulation of its pulse width. This is one bad-ass dual oscillator."

http://bit.ly/LearningModular

RF Modula analog jam psychedelic techno 128bpm

video upload by Radical Frequencies Modular

"128 bpm psychedelic techno analog jam with the RF Modular . kick - snare and hats are analog and mixed through the transistor mixer.
The hats are made by feeding a noise through 12db multi vcf in bandpass mode and RF Vcadsr envelopes.
The bass is the AD multi Vco saw wave into SH vcf .
The fm lead is the 2 sine waves of dpvco into mixer and transistor out and then into RF waveshaper .
The is a 303 acid line too from cyclone not visible in this video .
Sequences and triggers from Beatstep pro . The RF VC adsr envelopes are voltage controlled in decay and release from RF Lucky Voltages"