CVR

The CV Recorder 57B module provides a radical new approach to generating modulation and voltage control signals. The implications for this module are extensive when placed in a modular synthesizer context.

Concept:

Combine the ability to record and playback control voltage signal events from standard modules with the tools to shape, mix, loop and time scale these performances in a simple and repeatable manner.

A brief list of possible uses for the 57B:

Create asymmetric LFO shapes from Joysticks or ribbon controller signals
Control panning and VCA parameters for automated mixing
Record long analogue step sequence patterns while changing the step voltages and recording the clock simultaneously for later sync operations
Combine and chain together random voltage patterns with sequences and LFOs on 4 channels
Record envelope shapes and loop them while adjusting the loop start and end points.
Perform granular synthesis type effects on CVs using short loops and sweeping the loop points through the sample under voltage control.
Record lo-fi audio samples and shift playback frequency in real-time.
Plus many more

Features list:

20Hz-20kHz Voltage controlled variable sample/playback rate
with 1V per octave response
4 seconds of quad sampling @20kHz. Greater than 1 hour @20Hz
Quad in/outs with 15 switch selectable channel recording configurations
Record and playback simultaneously
Rehearse mode for pre-recording experiments
Chain multiple samples by recording with different loop points and sample rates.
3 loop modes: Forward, Reverse and Pendulum
Panel and voltage controlled Loop start and End controls
3 Playback modes: One shot, Loop and Hold play
Gate out provides short pulse at loop start
Trigger input for triggering samples when not in loop mode
Status Bi-LED indicates various record and playback states
Channel LEDs indicate arming of channels for recording.
120MHz DSP processor and 4MB of parallel SRAM

Specs:

Sample rate : 20Hz-20kHz (10 Octaves)
Recording Inputs: +/-5V Pk-Pk@100Kohms
Outputs: +/-5V Pk-Pk@1 Kohms
Other inputs 0-5V @100Kohms
Current Requirements: 50mA @ -15V, 200mA @ +15V

Demo MP3s

Wonky
Vocalize
Quadnoodle
GranularCV
Formant
Chained
Lumpy
Sequence
Simple
Drumloop
Quad
LFO1
LFO2
GranularZEP
Loopmode

Seq3
This sequence was recorded using the VC Sequencer 54B
into the Quantizer 55B. The voltage steps for the VCDO pitch and FM index and sequencer pulse out were recorded and looped
by the CV Recorder . The sliders on the sequencer were tweaked and recorded with each successive pass creating a recognizable pattern but with more variation. The sound component is VCDO, Super Delay and 4VCA with DADSR.