4ms Dual EnvVCA Manual

4ms Tastatur Dual EnvVCA

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Shaped Dual EnvVCA

4ms Company

User Manual 1.0 – November 15, 2022

The Shaped Dual EnvVCA is a dual analog envelope generator, waveshaper, slew limiter, and VCA.

Each of the two channels is identical and they can be used separately or together.

Shaped Dual EnvVCA features:

•Versatile linear, exponential, and logarithmic envelope generator/LFO

•Low-noise, low-distortion, DC-coupled linear VCAs

•Shape slider, CV jack and attenuverters for fading between Exponential, Linear, and Logarithmic

envelope shapes without changing envelope timing

•100% analog

•Sliders and range switches control times from ~2ms (500Hz) to ~2 min. Rise and Fall

•Time CV jack extends time range: ~400 s (2.5kHz) to ~1 hour. µ

•Independent attenuverters for time Rise and Fall

•Blue/Red lights indicate strength and polarity

• buttons for looping envelopes (LFO) Cycle

• input jack and switch for toggling between AR, ASR, and Cycle modes of triggering Trigger

•EOR/F (End of Rise/Fall) gate outputs can be used to chain and sequence events

• knobs scale and shift output without changing VCA volume Env Level and Offset ENV

• jacks for passing audio or CV through the VCA Audio In and Out

•VCA CV inputs to use VCAs independently from the envelopes

• VCA gain internally connected to envelope output when VCA CV jack is left unpatched

• input jacks allow for slew limiting, envelope following/sidechaining, ADSR, and exotic Follow

filtering effects

• Re-trig jumpers allow for re-triggering during rise phase

Cycle

ASR

Cycle

ASR

Rise Fall

Shaped Dual EnvVCA

TimeTime

VCA CVVCA CV

Audio BAudio A

Out

Out Lin 5VLin 5V

Shape

Rise Fall

Slow

Fast

Med

Slow

Fast

Trig Cycle

Offset

Level

EOF

Fall

Rise

Shape Shape

ENV A ENV B

Shape

FallRise

Slow

Fast

Med

Slow

Fast

Trig

Cycle

Offset

Level

EOR A

Table of Contents

Setting up your Shaped Dual EnvVCA! "...................................................................3

Controls and Jacks! "................................................................................................3

Rise and Fall Time Ranges! "....................................................................................6

Patch: Making Notes! ".............................................................................................7

Making Notes (basic)! ".......................................................................................7

Making Notes in Stereo! "...................................................................................7

Synchronizing channels: Making Notes Using Triggers! "...................................8

Creating Stereo Motion! "....................................................................................8

Using a Keyboard or Sequencer! "......................................................................9

Patch: Waveshaping! "............................................................................................10

Modulating Waveshape! ".................................................................................10

Different Waveshapes for Rise and Fall! "...............................................................11

Log Rise with Expo Fall! ".................................................................................11

Any Combination of Shapes! "..........................................................................11

Patch: Modulating Time! ".......................................................................................12

Rapid Bursts! "..................................................................................................12

Ratcheting! "......................................................................................................12

Patch: Making an Oscillator and Synth Drums! "....................................................13

Making an Oscillator! "......................................................................................13

Making a Kick Drum! ".......................................................................................13

Making other Synth Drum sounds! ".................................................................14

Self-patching ideas! "..............................................................................................15

Frequency Modulation (FM)! "...........................................................................15

Chaotic FM! "....................................................................................................15

Utility Patches! "......................................................................................................15

Attenuator! "......................................................................................................15

Trigger Delay with Pulse Width control! "..........................................................15

Inverted Trigger Delay (With Pulse Width Control)! ".........................................15

DC generator (Manual CV)! ".............................................................................15

Creating Envelopes with Trig Jack and Switch, Cycle Button, and Follow Jack! ".16

Triggering with switch set to AR! "....................................................................16

Triggering with switch set to ASR! "..................................................................16

Triggering with RETRIG Jumper Off (Factory Default)! "...................................16

Triggering with RETRIG Jumper On! "...............................................................16

Cycle Button and Triggering with switch set to Cycle! "...................................16

Follow Jack with Gates! "..................................................................................17

Fundamentals of the Follow Jack! "........................................................................17

Audio filter! "......................................................................................................18

Portamento/glide! "...........................................................................................18

Sidechaining (Envelope Following)! "................................................................18

Using non-linear Shapes with Follow! "............................................................19

Creating ADSR Envelopes! "...................................................................................20

ADSR envelope! "..............................................................................................20

Table of Envelope Shapes! "...................................................................................22

Using Offset and Level Knobs! ".............................................................................23

RETRIG Jumper! "...................................................................................................23

Electrical and Mechanical Specifications!............................................................24

Page of 2 24

Produkt Specifikationer

Mærke:	4ms
Kategori:	Tastatur
Model:	Dual EnvVCA

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