Raul Pena published new videos demonstrating the A-136 Distortion/Waveshaper Module
Module A-136 is a distortion and waveshaping module with extensive control possibilities. The incoming audio or cv signal is internally divided into 3 sections:
- positive component of the signal with adjustable clipping level (even externally via jack socket) and positive or negative amplification (+/-) of this component
- negative component of the signal with adjustable clipping level (even externally via jack socket) and positive or negative amplification (+/-) of this component
- original signal with positive or negative amplification (+/-)
Different settings of 5 distortion/waveshaping parameters enable a lot of very complex and extreme waveform modifications. The range of modifications reaches from simple soft or hard clipping to completely altered waveforms where the original signal is no longer recognizable.
The sketch below shows only a few examples when using a triangle as input signal.
Applications: audio distortion (especially in combination with filters very interesting), waveform modification for audio signals as well as for control voltages (LFO, ADSR, random etc.).
Video: Doepfer A136 Distortion/Waveshaper Basics and Demos (Full Playlist)
" The frequency of the input signal (preferably the rectangle output of a VCO) is divided by an integer factor N (N = 1, 2, 3, 4 ... up to 32). N can be adjusted manually and modulated with an external control voltage (e.g. from LFO, ADSR, Random, MIDI-to-CV, Theremin, Light-to-CV, analog sequencer) with attenuator.
The control input has polarizing function, i.e. the manually adjusted dividing factor can be modulated upwards or downwards. The basic idea of a polarizer is described in the modules A-133 Voltage Controlled Polarizer and A-138c Polarizing Mixer.
A-163 Frequency Divider
The output waveform is rectangle with 50% duty cycle. Unlike the A-115 with fixed dividing factors
Applications: dynamic voltage controlled frequency division of audio signals or modulation signals. More details concerning frequency division of audio signals can be found in the Trautonium or A-113 information.
Inputs: CV In, Audio In (rectangle)
Output: Audio Out (resp. rectangle modulation CV out after modification)
Controls: Manual N, CV attenuator
After a small modification (a capacitor has to be shortened or replaced by a wire for DC coupling) the A-163 can be used for low-frequency control signals too.
Remark: From 2007 the module is equipped with an additional jumper at the bottom side of the pc board. This jumper is used to select DC coupled (jumper installed) or AC coupled mode (jumper removed).
If the module is used to divide slowly changing signals (like clock, trigger, gate or rectangle signals of an LFO) the DC coupled mode has to be selected. For audio signals the AC mode is recommended."
(2, 4, 8, 16) the dividing factor of the A-163 is voltage controlled and can be any integer value between 1 and about 20 (but only one output). In contrast to A-113 the dividing factor of the A-163 is voltage controlled and the output waveform is rectangle (the A-113 has 4 sawtooth outputs with 4 adjustable but not voltage controlled dividers).
Video: Doepfer A-163 Voltage Controlled Frequency Divider (Full Playlist)
" A short overview of the basic features of the A-163 VC Frequency Divider. A short audio demonstration is provided.
The A-166 is a Dual logic module with 3 inputs for each unit.
The logical states of the inputs ("1" = high / "0" = low) are linked together in 3 ways: AND, OR, EXOR (exclusive OR). The three functions are available simultaneously at three outputs with LED display of the output states.
Additionally two inverters are avaliable to obtain the inverted functions NAND, NOR and NEXOR.
The sockets of each triple unit are "normalized", i.e. the switched contact of socket 2 is connected to input 1 and the switched contact of socket 3 is connected to input 2.
Provided that no plug is inserted into socket 1 resp. socket 2 the socket is connected to the input above it.
This simplifies the usage of the module when only 2 signals are combined. E.g. the logic functions AND and OR have different neutral input levels ("1" is the neutral state for AND, "0" is the neutral state for OR).
Here's the playlist , future videos will be added automagically every week on Thursday or Friday.
The VCO has a range of about 12 octaves, and produces four waveforms simultaneously: pulse (rectangle), sawtooth, triangle and sine waves.
The VCO's frequency is determined by the position of the range switch, tune and fine tune controls, and the voltage at the two pitch CV inputs, CV 1 and CV 2. Footage (the octave of the fundamental) is set by the Range control, which has seven octave steps.
The Tune control is used for coarse tuning, and the Fine control for fine tuning of the VCO pitch.
The A-111 can be modulated by both exponential and linear FM (frequency modulation).
You can control the pulse width of the square wave either by hand, or by voltage control - Pulse Width Modulation, or PWM for short. The A-111 also has inputs for Hard Sync and Soft Sync.
As the special circuit CEM3340 used in this module is no longer available the module has to be discontinued.
While I was gone, Raul Pena kept on making new A-100 video tutorials.
Here's the next series (now presented here as a playlist instead of weekly updating a blogpost), showing you all the ins and outs of the A-106-5 SEM Filter.
A-106-5 12dB
SEM Filter
Module A-106-5 is a 12dB multimode filter that is based on the filter circuit of the Oberheim SEM module.
The filter is equipped with a band pass output and a combined low/notch/high pass output.
For this output a control knob defines the relation between low and high pass signal.
If both signals appear at the same level (i.e. middle position of the Mix knob) one obtains a notch filter. Otherwise the low or high pass signal predominates.
The module does not feature self oscillation in contrast to most of the other filters of the A-100 system.
The module generates a distorted audio signal if the level control is set to about 50% (i.e. center position) or more with A-100 standard signals like VCOs.
Inputs:
Audio In, CV1 In without attenuator, CV2 In with Polarizer
Outputs:
Bandpass Out, Low/Highpass Mix-Out
Controls:
Audio Attenuator, CV2 Polarizer, Frequency, Resonance, LP/HP Mix
Back in August of this year Raul Pena published his series on the Doepfer A-137-1 Wave Multiplier module (11 parts!)
Now he's back with the first tutorial videos starring the follow-up to this module, the A-137-2.
The A-137-2 is another version of a wave multiplier.
In contrast to the A-137-1 Wavemultiplier I the A-137-2 generates four phase-shifted copies of a VCO signal applied to the audio input. The four shifted signals are added to the original signal to obtain a fat sound similar to five independent VCOs.
Doepfer A137-2 VC Wave Multiplier II (Playlist)
"A short overview of the basic features of the Doepfer A137-2 Voltage Controlled Wave Multiplier II. Includes a short demonstration of a few oscilloscope views. Sound and Video by Raul Pena."
Video 1: Doepfer A-116 VC Waveform Processor Basic Features
" A short introduction to the features of the Doepfer A116 Voltage Controlled Waveform Processor. A short demonstration with audio is included. Video one of three.Sound and Video by Raul Pena."
Video 2: Doepfer A116 VC Waveform processor-Audio/Oscilloscope Views Pt.1
" Continuing the Doepfer A116 VC Waveform Processor series. This time we look at oscilloscope views of the effects of the A116 on a basic Sine and Triangle Wave. Video Two of Four in series..Sound and Video by Raul Pena."
Video 3: Doepfer A116 VC Waveform processor-Audio/Oscilloscope Views Pt.2
"Continuing the Doepfer A116 VC Waveform Processor-Audio Oscilloscope segment. This time we look at more oscilloscope views of the effects of the A116. Video Two of Four in series..Sound and Video by Raul Pena."
Video 4: Doepfer A116 VC Waveform Processor- Modulation Effects Pt. 1
Continued exploration of the Doepfer A116 Waveform Processor. In this video we look at a few modulation patches with simple waveforms. Sound and Video by Raul Pena.
Video 5: Doepfer A116 VC Waveform Processor- Modulation Effects Pt. 2 Continued exploration of the Doepfer A116 Waveform Processor. In this video we look at a few modulation patches with simple waveforms. Sound and Video by Raul Pena.
Video 1: Doepfer A-105 24 dB SSM Low Pass Filter Basics
" A short overview of the Basic features and sound of the Doepfer A105 24dB SSM Low Pass Filter. Audio demonstration continued in next segment of series. Sound and Video by Raul Pena."
Video 2: Doepfer A-105 24 dB SSM Low Pass Filter Audio Demonstration
" A continued exploration of the Doepfer A105 24 dB SSM Low Pass Filter.
This time we hear the wide range of the filter using a sequenced passage.
We also explore the subtlety of the filter's resonance.
Second video of three.
Sound and Video by Raul Pena."
Video 3: Doepfer A-105 24 dB SSM Low Pass Filter Modulation Demonstration
" A continued exploration of the Doepfer A105 24 dB SSM Low Pass Filter.
This time we experiment with a few modulation sources.
A short demo of using the filter in self oscillation is included.
Sound and Video by Raul Pena."
Raul Pena just published a new video today.
This begins the Doepfer Wave Multiplier series.
Enjoy!
Video 1: Doepfer 137-1 VC Wave Multiplier I Basics
" A basic description of the features and functions of the Doepfer A137-1 Wave Multiplier.
Sound and Video by Raul Pena."
Video 2: Doepfer 137-1 VC Wave Multiplier with Low Frequency signals Part One
" A walkthrough of processing Low Frequency signals using the A137-1 Wave Multiplier. Experimenting with different settings.
Sound and Video by Raul Pena."
Video 3: Doepfer 137-1 VC Wave Multiplier with Low Frequency signals Part Two
" A walkthrough of processing Low Frequency signals using the A137-1 Wave Multiplier. Experimenting with different settings. Sound and Video by Raul Pena "
Video 4: Doepfer A137-1 Wave Multiplier with Audio rate Signals-Triangle Wave Pt.1
" A walkthrough of several different timbres which can be achieved with the A137-1 Wave Multiplier with a simple Triangle Wave. Different experiments with Multiples, Folding level, Symmetry, and Harmonics are shown. Part One of Two.
Sound and Video by Raul Pena."
Video 5: Doepfer A137-1 Wave Multiplier with Audio rate Signals-Triangle Wave Pt.2
" A walkthrough of several different timbres which can be achieved with the A137-1 Wave Multiplier with a simple Triangle Wave. Different experiments with Multiples, Folding level, Symmetry, and Harmonics are shown. Part Two of Two.
Sound and Video by Raul Pena."
Video 6: Doepfer A137-1 Wave Multiplier with Audio rate Signals-Sine Wave Pt.1
" A short video exploring the processing of a Sine Wave with the Doepfer A137 Wave Multiplier. Part One of Two.
Sound and Video by Raul Pena."
Video 7: Doepfer A137-1 Wave Multiplier with Audio rate Signals-Sine Wave Pt.2
" A short video exploring the processing of a Sine Wave with the Doepfer A137 Wave Multiplier. Part Two of Two. Sound and Video by Raul Pena."
Video 8: Doepfer A137-1 Wave Multiplier-Modulation with Control Signals-Simple Modulation Part One
" An exploration into the simple modulation of the Doepfer A137-1 Wave Multiplier.Part One of Two.
Sound and Video by Raul Pena."
Video 9: Doepfer A137-1 Wave Multiplier-Modulation with Control Signals-Simple Modulation Part Two
" An exploration into the simple modulation of the Doepfer A137-1 Wave Multiplie with two modulation sources.Part Two of Two.
Sound and Video by Raul Pena."
Video 10: Doepfer A137-1 Wave Multiplier-Modulation with A149 Quantized/Stored Random Voltages Pt.1
"Continuing the A137-1 series with modulation. This time we begin modulating with the A149-1 Random Voltages.Part One of Two. Sound and Video by Raul Pena. "
Video 11: Doepfer A137-1 Wave Multiplier-Modulation with A149 Quantized/Stored Random Voltages Pt.2
" Continuing the A137-1 series with modulation. This time we begin modulating with the A149-1 Random Voltages.Part Two of Two. Sound and Video by Raul Pena."
Video 1: Quadrophonic Basics with Doepfer A-100 System Part One-Patch #1
" A short introduction discussing quadrophonic sound using a Doepfer System 100. Beginning of Patch example #1 with Quadrophonic sound using the Doepfer A144. Sound and Video by Raul Pena."
Video 2: Quadrophonic Basics with Doepfer A-100 System Part Two- Patch #1
" Continued exploration discussing quadrophonic sound using a Doepfer System 100. with Patch example #1 with Quadrophonic sound using the Doepfer A144.Sound and Video by Raul Pena."
Video 3: Quadrophonic Basics with Doepfer A-100 System Part Two- Patch #2
"A continued exploration of a second quadraphonic sound patch with a Doepfer A-100 system. This patch involves the A174 joystick explored in a different series. Sound and video by Raul Pena.
Video 4: Quadrophonic Basics with Doepfer A100 system Part Four-Patch #2
" A continued exploration of a second quadraphonic sound patch with a Doepfer A-100 system. This patch involves the A174 joystick explored in a different series. Sound and video by Raul Pena."
" A short look at the Doepfer A144 Morph Controller. Includes a discussion of some of the basic features and functions of the the A144. This module is intended as an expander unit for the Doepfer A135 Voltage Controlled Mixer.Sound and video by Raul Pena."
Video 2: Doepfer A144 Morph Controller- Audio Demo Part One-Basic Morphing
" A short demonstration on the basic morphing with the Doepfer A144 Morph Controller. Sound and Video by Raul Pena."
Video 3: Doepfer A144 Morph Controller-Audio Demo 1-Basic Morphing continued
" A short demonstration on the basic morphing with the Doepfer A144 Morph Controller. Part Two of Two.Sound and Video by Raul Pena."
Video 4: Doepfer A144 Morph Controller-Audio Demo 2-Basic Waveshaping Part One
" The next audio demonstration in the Doepfer A144 Morph Controller series. This week we look at the use of this module as a basic Waveshaper. Sound and Video by Raul Pena."
Video 5: Doepfer A144 Morph Controller Audio Demo Part Two-Basic Waveshaping Continued
" The Next section of the Doepfer A144 Morph controller Series. We review the "wave shaping" using the A144. Review discussion from last time, includes Audio demonstrations.Sounda and Video by Raul Pena.
For Article on Interpolating Scanner
by Juergen Haible http://www.jhaible.com/tonline_stuff/jh_ipscan.html "
Video 6: Doepfer A144 Morph Controller-Experimenting with A144 and Conclusion Part One
" Part one of two in the final segment in the Doepfer A144 Morph Controller series. A demonstration of patching with various effects. Sound and Video by Raul Pena."
Video 7: Doepfer A144 Morph Controller-Experimenting with A144 and Conclusion Part Two
Part Two of two in the final segment in the Doepfer A144 Morph Controller series. A demonstration of patching with various effects. Sound and Video by Raul Pena. Check out Raul's latest survey at http://www.surveymonkey.com/s/K3Z9PVF
" A short description of the beasic features and functions of the Doepfer A135-1 Quad Linear VCA, Voltage Controlled Mixer. Sound and Video by Raul Pena."
Video 2: Doepfer A135 Quad Linear VCA/ Voltage Controlled Mixer Audio Demonstration One
" A short demonstration of A135 Quad Linear VCA with oscilloscope views to show how external cv effects amplitude of an audio signal. Sound and Video by Raul Pena."
Video 3: Doepfer A135 Quad Linear VCA/ Voltage Controlled Mixer Audio Demonstration Two
The second of two Audio Demonstrations of A135 Quad Linear VCA with oscilloscope views to show how external cv effects amplitude of an audio signal. Sound and Video by Raul Pena.
New videos in this series will be added to this post weekly on Thursdays.
"A brief overview of the features and function of the Doepfer A143-9 Quadrature LFO. Sound and Video by Raul Pena. "
Video 2: Doepfer A143-9 Quadrature LFO Audio Demonstration Part One
" A brief audio demonstration of the Doepfer A143-9 Quadrature LFO. Sine outputs at different phase settings are compared. Sound and Video by Raul Pena."
Video 3: Doepfer A143-9 Quadrature LFO Audio demonstration Part Two
"The second of two audio demonstrations using the Doepfer A143-9 Quadrature LFO. In this segment we use the 4 outputs of the A143-9 to modulate the 4 inputs of the Doepfer A135-1 Quad VCA,VC mixer. Includes a short demo of how to use an offset to slow the A143-9 rate is shown. Sound and Video by Raul Pena."
New videos in this series will be added to this post weekly on Thursdays.
Raul also created a couple of surveys to help improve his videos,
please help him out by answering a few questions:
Video 2: Doepfer A172 Maximum/Minimum Selector-Low Frequency Signal Processing
" A look at processing low frequency signals with the Doepfer A172 Maximum/Minimum Selector. Different combinations of waveforms and oscilloscope views are featured.
Sound and Video by Raul Pena."
Video 3: Doepfer A172 Maximum Minimum Selector-Audio Rate Signal Processing
" A brief look at the Doepfer A172 Maximum/Minimum selector for processing audio rate signals.Sound and Video by Raul Pena."
Video 4: Doepfer A172 Maximum/Minimum-Subaudio and Audio Rate processing Part One
" A brief look at processing mixed signals with Subaudio and Audio Rate signals into the Doepfer A172 Maximum/Minimum selector. Part one of two. Sound and Video by Raul Pena."
Video 5: Doepfer A172 Maximum/Minimum-Subaudio and Audio Rate processing Part Two
" A brief look at processing mixed signals with Subaudio and Audio Rate signals into the Doepfer A172 Maximum/Minimum selector. Part two of two. Sound and Video by Raul Pena."
Video 6: Doepfer A172 Maximum/Minimum Selector-Max/Min vs. Ring Modulation
" A short comparison between the effects of the Maximum/Minimum Selector when compared to the Doepfer A114 Ring Modulation module.
Sound and Video by Raul Pena."
Video 7: Doepfer A172 Maximum/Minimum Selector-Fine Tuning CV processing with Max/Min
" The final installment in the Doepfer A172 series. A brief demonstration of how you can utilize Offset to achieve better results with the Maximum/Minimum Selector. Sound and Video by Raul Pena."
Yay... a new tutorial series by Raul Pena has started...
The topic this time is the Doepfer A-170 Dual Slew Limiter , enjoy!
Video 1: Doepfer A170 Dual Slew Limiter Basics
" First video in a series on the Doepfer A170 Dual Slew Limiter. Discussing Basic Concepts and features. Audio demonstrations begin in next segment. Sound and Video by Raul Pena. "
Video 2: Doepfer A170 Dual Slew Limiter-Processing and Oscilloscope views Pt 1
" A continuation of the Doepfer A170 Dual Slew Limiter series. In this segment Oscilloscope views of subaudio waveforms are examined when processed through a slew limiter. Audio rate examples begin in the next segment. Sound and Video by Raul Pena."
Video 3: Doepfer A170 Dual Slew Limiter-Processing and Oscilloscope views Pt 2
" A continuation of the Doepfer A170 Dual Slew Limiter series. In this segment Oscilloscope views of subaudio waveforms processed with a slew limiter modulating a VCO are compared to those unprocessed. Sound and Video by Raul Pena."
Video 4: Doepfer A170 Dual Slew Limiter Processing and Oscilloscope Views Pt 3
" A continuation of the Doepfer A170 Dual Slew Limiter series. In this segment we continue to compare oscilloscope views of processed versus unprocessed signals effecting a VCO. Sound and Video by Raul Pena."
Video 5: Doepfer A170 Dual Slew Limiter-Slew Portamento and Filtering Examples
" Continuing the Doepfer A170 Dual Slew Limiter Series. This segment explores a more standard use of the Doepfer A170 Slew Limiter for Portamento. Also included is an example of using the A170 as a Filter. Sound and Video by Raul Pena. "
Video 6: Doepfer A170 Dual Slew Limiter-Glissando AM example
" A continuation of the Doepfer A170 Slew Limiter Series. In this segment we examine a patch from the manual involving AM.Special thanks to chrisso from the Muff's Module forum.Sound and Video by Raul Pena."
Video 7: Doepfer A170 Dual Slew Limiter -Slew as AR example
" A continuation of the Doepfer A170 Slew Limiter Series. In this segment we examine a patch from the manual involving the A170 as an AR envelope.Sound and Video by Raul Pena."
New videos in this series will be added to this post weekly on Thursdays.
A brand new series of Raul Pena's excellent tutorial videos starts today.
This time all about the A-124 Wasp Filter, one of my favorites...
Video 1: Doepfer A124 Wasp Filter Basics
" A short description of the basic features and functions of the Doepfer A124 Wasp filter.Sound demonstrations begin in the following segments. Sound and Video by Raul Pena."
Video 2: Doepfer A124 Wasp Filter LP/BP/HP/Notch Demonstrations Part One
" A brief discussion of the sequencer setup for the demonstration. The Bandpass portion of this filter of the Doepfer A124 Wasp Filter is explored. Other filter types will be examined in the following segments. Sound and Video by Raul Pena."
Video 3: Doepfer A124 Wasp Filter LP/BP/HP/Notch Demonstrations Part Two
" A continuation of the exploration of the Doepfer A124 Wasp Filter. The Notch, Lowpass, and Highpass portions of the Doepfer A124 Wasp Filter are explored. In the next segment this filter is compared to the Doepfer A121 Multimode Filter. Sound and Video by Raul Pena."
Video 4: Doepfer A124 Wasp vs. A121 Multimode Filter Part One
" Continuing the Doepfer A124 Wasp Filter series, this part one of two explores how the Doepfer A124 Wasp filter compares to the Doepfer A121 Multimode Filter. A brief discussion regarding setup followed by audio demonstration of Lowpass filter similarities. Sound and Video by Raul Pena."
Video 5: Doepfer A124 Wasp vs. A121 Multimode Filter Part Two
" Continuing the Doepfer A124 Wasp Filter series, part two of two explores how the Doepfer A124 Wasp filter compares to the Doepfer A121 Multimode Filter. Audio demonstration of Notch, Bandpass, and Highpass filter similarities. Sound and Video by Raul Pena."
Video 6: Doepfer A124 Wasp Filter- Modulation and Other Effects
" The final segment in the Doepfer A124 Wasp Filter Series. Covering Modulation and other effects. Sound and Video by Raul Pena."
New videos in this series will be added to this post weekly on Thursdays.
As promised, a new series of Raul Pena's excellent tutorial videos has started today.
This time Raul digs deep into, and explains all about one of my favorite filters, the Doepfer A-121 Multimode Filter.
Video 1: Doepfer A121 Multimode Filter Basics
" A brief look at the Doepfer A121 Multimode Filter. Basic Features and functions are discussed.
Audio demonstrations in the next video in the series.
Sound and Video by Raul Pena."
Video 2: Doepfer A121 Multimode Filter Low and High pass Filters Demonstration
" A brief look at the Doepfer A121 Multimode Filter.
Audio demonstrations of the Doepfer A121 Multimode filters.
A specific look at the Low and High Pass Filters. Next video in series looks at the Band Pass and Notch filters.
Sound and Video by Raul Pena."
Video 3: Doepfer A121 Multimode Filter- Band Pass and Notch filters Demonstration
" A brief look at the Doepfer A121 Multimode Filter. Audio demonstrations of the Doepfer A121 Multimode filters. A specific look at the Band pass and Notch Filters. Next video in series looks at Modulation of the filter.Sound and Video by Raul Pena."
Video 4: Doepfer A121 Multimode Filter- Modulation Demonstration
" Last segment in the Doepfer A121 Multimode filter series. Segment explores modulation of the A121 via the 1/V per octave inputs for frequency and resonance. Sound and Video by Raul Pena."
Raul Pena is back with a new A-100 tutorial series, this time all about the A-196 Phase Locked Loop (PLL) module.
- Its a slightly different type of series this time, Raul is asking for feedback and may do alternate versions.
A more detailed intro to the series and notes can be found HERE.
Video 1: Doepfer A196 PLL Phase Locked Loop Basics
" Beginning of a series exploring the basics of the Doepfer A196 PLL Phase locked loop module. Video discusses understanding basic layout of the module and general layout. Audio demonstrations begin in next part of series "Experiments with the Doepfer A196 Phase Locked Loop-VCO and Comparator". Sound and Video by Raul Pena."
Video 2: Doepfer A196 PLL Experiments with the Phase Locked Loop- VCO and Phase Comparator Part One
" Beginning of a series exploring the Phase Locked Loop by Doepfer.Experiments with the Doepfer A196 PLL (Phase Locked Loop)- VCO and Phase Comparator. Part One of Two. For Basics on the Phase Locked Loop look for Doepfer A196 PLL Phase Locked Loop Basics. Sound and Video by Raul Pena."
Video 3: Doepfer A196 PLL- Experiments with the Phase Locked Loop-VCO and Phase Comparator Part Two
" Continuation of a series exploring the Phase Locked Loop by Doepfer.
Experiments with the Doepfer A196 PLL (Phase Locked Loop)- VCO and Phase Comparator.
Part Two of Two. For Basics on the Phase Locked Loop look for Doepfer A196 PLL Phase Locked Loop Basics. Sound and Video by Raul Pena."
Here are the first 3 episodes... i will add new ones every Thursday.
Video 1: Doepfer A-167 Basics
" Description of the Basic Features of the Doepfer A167 Comparator. Sound and Audio by Raul Pena. Sound Demonstration begins in next segment."
Video 2: Doepfer A-167 Offset and Outputs Part One
" A closer look at the output and offset options on the Doepfer A-167 Comparator. Part One of two. Sound and Video by Raul Pena."
Video 3: Doepfer A-167 Offset and Outputs Part Two
" A closer look at the output and offset options on the Doepfer A167 Comparator. This is Part Two of Two. Includes Oscillocope views of waveforms using the Dave Jones Design O'Tool. Sound and Video by Raul Pena."
Video 4: Doepfer A-167 Offset and Free ADSR Part One
" A continued exploration of the Doepfer A167 Comparator. Includes sound examples of Offset and Oscilloscope views. Free Running ADSR example found in next video."
Video 5: Doepfer A-167 Offset and Free ADSR Part Two.
"Part Two of the Doepfer A167 Offset and Free ADSR segment. A continued exploration of the Doepfer A167 Comparator. Includes sound examples of Offset and Oscilloscope views. Free Running ADSR example found in next video. Sound and Video by Raul Pena."
Module A-136 is a distortion and waveshaping module with extensive control possibilities. The incoming audio or cv signal is internally divided into 3 sections:
