CG-Products XR 22VCO, Delay 1022, Peak + Hold, sound.report (Short explanation + 15 Min sounds only)

video upload by The Green Man(TGM) + sound.report by Heiner Kruse

https://www.cg-products.de/module/

XR22 VCO FT
VCO with Ring Modulation Input and FSK (Frequency Shift Keying)

Amplitude Modulation (AM) Input
Ring modulation
CV controllable sine/triangle volume
Advanced waveform generation by AM
Rgb-LED for optical control
FSK (Frequency Shift Keying)
Pulse and ramp generation
Switching between two different frequency CVs
Advanced waveform generation by FSK
LFO-, Bass-, High- Mode
Switchable Sync-Mode (from Rev.6)

The XR22 VCO FT is a VCO with amplitude modulation option – which can be used for volume control, or ring modulation of the oscillator’s sine/triangle output. The AM-input signal is added to a DC-voltage adjustable by knob ‘Gain’ (between ca. +/-5V) and the sum voltage is being internally multiplied with the sinewave/trianglewave The result is an oscillator amplitude depending on the ‘Gain’-DC plus AM-input signal. The applied AM-input signal can be mixed to the VCO output signal (modulated or unmodulated) too – a kind of ‘dry/wet’ control with the mix provided on the sine/triangle output. With no AM-input, the XR22 VCO FT behaves like a normal sinewave/triangle VCO, then its volume is controlled by knob ‘Gain’. Whereas with the knob ‘Gain’ in center position, the oscillator tone is becoming almost muted, and the input signal on ‘AM in’ controls the amplitude of the wave completely; thus the VCO can be used as a ring modulator.

The FSK (frequency shift keying) option provides two internally switchable different oscillator frequencies F1 and F2; each controllable by the two big-sized knobs (and their respective fine-tuning knobs and CV inputs). Switching between F1 and F2 can be done manually or by a logic signal (e.g. a gate signal) applied on input ‘FSK in‘. Further, it is possible to use the XR22 VCO FT‘s squarewave output for FSK switching. This will result in ramp or sawtooth (on the sine/triangle output) and pulse (on the squarewave output) waveforms. The falling and rising edges of the of the sine/triangle signal and the duty-cycle of the squarewave output are independently adjustable, and/or controllable via CVs of F1 and F2.

Furthermore, there is a switch for linking F1 to F2. In this case, the ratio between F1 and F2 is remaining the same, independently from the frequency, and ensuring properly 1V/oct. CV tracking.

A switch allowes to enable ‘sync mode’: An applied trigger will restart the wave always at the same point, useful for synced LFO applications and more.

For optical control, the XR22VCO FT has a full-color LED for AM visualization and a 2-color LED for FSK control.

Delay1022
Analog BBD Delay with voltage controlled feedback

Delay times from 2.5 ms to 50ms (without T CVin)
CV controllable delay time (≙ feedback frequency)
Good 1V/oct. tracking
Feedback CV control input
2nd delay output behind feedback-contolling VCA
Delay muting
Noise reduction
Effect inserts
Manually controllable output lowpass (12dB)
Noise reduction
Sound control
Switchable highpass mode (from Rev.6)

It can be used – triggered and/or in feedback mode – as its own synthesizer voice or for VCO-like applications (Karplus-Strong synthesis). It has a good 1V/oct. tracking over several octaves and suits well for creating drum and string-like sounds. A manually controllable lowpass filter and the feedback VCA are enhancing the sound modelling options.

Furthermore, the Delay1022 allows frequency modulation of audio signals as well as flanging and phasing effects or the realization of room ambience and spatial depth. There is a certain amount of noise, as to be expected from analog BBD delay modules, however the Delay1022’s clear and brillant sound in combination with the manually controllable output low pass filter makes this completely tolerable."

PEAK+HOLD
Dynamic Percussion Interface

Dynamic signal processing
9 different CV/signal outputs
Manual level, trigger and filter controls of the input signal
Selectable frequency band (for cascading 2 or more P+Hs)
Pickup included

The Peak+Hold allows to play and control analog synthesizer equipment using a drum with a pickup or any other percussive signal source. It generates 9 different CV/signal outputs from one input source.

The outputs are: A velocity-dependent hold voltage (linear and logarithmic), a dynamic impulse signal (The length is adjustable by a potentiometer) e.g. for triggering filters or delays, a dynamic release signal (linear and logarithmic; release time adjustable by a knob), an envelope and a trigger signal output. Additionally, the original sound signal (amplified) is available for further signal processing.

The input stage is equipped with adjustable level and trigger controls and a envelope filter for flexible adaptation of different percussive instruments – such as long or short sounding, high or low drums and cymbals. Furthermore, there is a 2nd input which can be added to cascade two Peak+Holds or to add another signal source; as well as a minijack (1/8′) input which can replace the large 1/4′ jack input.

Without pickup, the Peak+Hold can be used for creating additional CVs and triggers from any percussive input signal (like from a drum machine or an audio player).