VOCODER, 7 bands, analog (with schematic)

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"VOCODER, 7 bands, analog (with schematic).

Thanks for watching."

VOCODER, seven bands on breadboard #analogsynthesizer #modularsynth #synthesizer #vocoder

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"VOCODER, seven bands on breadboard.

Thanks for watching."

Unrelated Activities is Sbranvlztronics.

pedalboard

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Sbranvlztronics DIY pedal board synth.

Sbranvlztronics Low Frequency Oscillator Sync Test - Analog LFO with Reset on Breadboard

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"Testing a LFO with a synchronization circuit. The idea is to force the LFO triangle wave output to immediately go to zero volt when receiving a positive gate or trigger at a Sync input. When the gate or trigger at the Sync input returns to zero, the triangle wave output must then always restart with an upward ramp. On this breadboard the reset circuit was implemented with a CMOS analog switch, and the sync control is just a wire to activate it."

Moog ladder VCF with Voltage Controlled Emphasis, on Breadboard

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"Moog transistor ladder VCF (Voltage Controlled Filter) with voltage controlled emphasis, on breadboard."

Analog Modular Synthesizer 20220925 LIVE

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"Analog Modular Synthesizer 20220925 LIVE
Chaos Modulation"

Analog Modular Guitar Synthesizer NINE Oscillators Patch

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"An Analog Modular Guitar Synthesizer patch using nine oscillators, integrating the electric guitar into the modular synth world. Four oscillators are in octaves, the five remaining VCO/PCO create a chord running in parallel. If my Arduino Clock Divider and Logic thing still has sufficient memory space available, I will try to implement a harmonizer algorithm to improvise some basic non parallel chord-melody progressions, would be nice... I forgot to hook up two more ADSR/VCA pairs, that's why some note releases are a bit weird."

Analog Modular Guitar Synthesizer Four Oscillators Patch

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"Analog Modular Guitar Synthesizer Four Oscillators Patch, integrating the electric guitar into the modular synth world."

GR-300 Based Homemade Guitar Analog Synthesizer - Part 01

Published on Mar 22, 2020 Unrelated Activities

"GR-300 Based Homemade Guitar Analog Synthesizer - Part 01

#Guitar Synthesizer
#Roland GR-300
Soundtrack: Springy, Spongy ma non troppo (Sbranvlztronics, Csound)"

Matrix II Analog Synthesizer: VCA (Voltage Controlled Amplifier)

Published on Oct 1, 2019 Unrelated Activities

"Matrix II Analog Synthesizer: VCA (Voltage Controlled Amplifier)"

Arduino Dual Channel and XY Waveform Display

Published on Sep 7, 2019 Sbranvlztronics

"Thanks for watching"

No audio. Thought this was interesting. When you see your typical oscilloscope video, you get the impression you are looking at a representation of sound. This video, however, gave me the impression of actually looking at sound itself for the first time through a primitive telescope. Kind of like the first time discovering something you've never seen before.

Quadruple Serge Waveshaper LM3900 wavefolder analog synth module

Published on Aug 14, 2019 Sbranvlztronics

"Quadruple Serge Waveshaper LM3900 wavefolder analog synth module.

Thanks for watching"

5 Way 24dB Linkwitz Riley Crossover as Synth Module

Published on Aug 9, 2019 Sbranvlztronics

"Here is a five band fourth order Linkwitz-Riley active crossover used as synthesizer module for multiband audio processing.
This module is based on a circuit from Eliot Sound Production (link bellow).
E.S.P. project 09 Linkwitz-Riley Electronic Crossover: https://sound-au.com/project09.htm

Thanks for watching

#Sbranvlztronics"

Quadrature Modulator DESTROYS JS Bach

Published on Jul 9, 2019 Sbranvlztronics

"The Quadrature Modulator comprises a Quadrature VCO (Yusynth VCLFO) and a "Dome Filter" (from J. Haible's Frequency Shifter)- see links bellow.
The VCO portion has 3 potentiometers (coarse and fine frequency tuning and modulation CV attenuation), one CV input, 4 outputs and 4 LED indicators.
The dome filter section has one input and two outputs. The outputs are 90º phase shifted from each other. The video shows the waveforms from the VCO and Dome Filter on oscilloscope.
Differences from Yusynth Quadrature VCLFO are the capacitor value (1nF instead of 10nF), and changes in the freq control (fine tuning pot, reduction of the CV input resistor value).
It can operate at audio and sub audio ranges (0.2 to 4000 Hz approximately), but 1V/8ª tracking is only marginal (~2 octaves).
There is no significant differences in the dome filter circuit.
Some examples shown in the video:
Quadrature VCO controlling 4 VCOs, 1V/8ª CV for the Quadrature VCO input coming from the CV Quantizer.*
Frequency Shifter patch using the Quadrature Modulator and two Ring Modulators.*
Adding FM CV to Quatradure VCO (from the Arduino Clock Divider Logic Thing Octal DAC).*"

Quadrature Modulator, analog synthesizer module 3rdWorldRack

Published on Jul 7, 2019 Sbranvlztronics

"The Quadrature Modulator comprises a Quadrature VCO (Yusynth VCLFO) and a "Dome Filter" (from J. Haible's Frequency Shifter)

The VCO portion has 3 potentiometers (coarse and fine frequency tuning and modulation CV attenuation), one CV input, 4 outputs and 4 LED indicators.

The dome filter section has one input and two outputs. The outputs are 90º phase shifted from each other. The video shows the waveforms from the VCO and Dome Filter on oscilloscope.

Differences from Yusynth Quadrature VCLFO are the capacitor value (1nF instead of 10nF), and changes in the freq control (fine tuning pot, reduction of the CV input resistor value).

It can operate at audio and sub audio ranges (0.2 to 4000 Hz approximately), but 1V/8ª tracking is only marginal (~2 octaves).

There is no significant differences in the dome filter circuit.

Some examples shown in the video:
Quadrature VCO controlling 4 VCOs, 1V/8ª CV for the Quadrature VCO input coming from the CV Quantizer.*
Frequency Shifter patch using the Quadrature Modulator and two Ring Modulators.*
Adding FM CV to Quatradure VCO (from the Arduino Clock Divider Logic Thing Octal DAC).*

Thanks for watching"

Frequency Shifter Patch: Oscilloscope and Spectrogram

Published on May 19, 2019 Sbranvlztronics

Follow-up to this post.

IQ Ring Modulation : analog Frequency Shifter patch

Published on May 15, 2019 Sbranvlztronics

"An Allpass filter network and a Quadrature VCO on protoboard, plus LFO and two Ring Modulators 3rdWorldRack modules."

I'd love to see the audio output on the oscilloscope.

Update:

Frequency Shifter Patch: Oscilloscope and Spectrogram

Published on May 19, 2019 Sbranvlztronics

Another Electronotes / ASM based VCO

Published on Mar 3, 2019 Sbranvlztronics

"I've built an octal DAC to work with the Arduino Clock Divider Logic Thing, now I need 8 VCOs, VCFs ADSRs, VCAs, ultimately an 8 voices polyphonic system... This will take a long time to finish, here is the second VCO based on the Electronotes / ASM circuit."

8 DACs for the Arduino Clock Divider Logic Thing 1 Volt per Octave CV Outputs

Published on Feb 6, 2019 Sbranvlztronics

"Building an Octal DAC for the Arduino Clock Divider Logic Thing (DAC0800 8bit parallel input digital to analog converters). It will replicate the MIDI output in the V/8ª CV standard, in order to control analog VCO and VCF modules."

Kind of a Wavefolder

Published on Dec 29, 2018 Sbranvlztronics

"Thanks for watching"