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Velectronic A-envelope - Associative Quadruple Envelope

£449.00

A-envelope is a quad envelope that makes it possible to define polyphonic configurations on the go for up to 4 voices, in a simple way. Not only that, but it also acts as an extremely powerful modulation source.

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  • Modulate every of the ADSR stages in time or shape (Exp, Lin, Log) independently
  • Configure the input activation mode as Gate, Trigger or Re-Trigger, and configure the channel in single, loop or auto-loop mode
  • Adjust the amount of modulation using the stage knobs when acting as attenuverters
  • Built like an absolute TANK - one of the most solid modules we've ever seen
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A-envelope was created in its basis to help and simplify the patching in polyphonic configurations. As we all can imagine, bringing polyphony to modular is a pretty tough thing to do because a good bunch of reasons like, space, dedicated modules, a lot of boilerplate patching and more, and even if sometimes we would like to have an harmonic duet or a three or four notes chord, we end up looking for wacky "workarounds". Additionally, during the iterative ideation and creation process some other interesting ideas came up and we could not hold us back from adding them.

Of course and as usual, every one of us will imagine very different application depending on our own use-case.

A-envelope is basically a four channel ADSR envelope with the capability of associating these channels in groups. Each of the channels has also modulation capabilities up to audio rate frequencies for every of the parameters of the envelope. It also supplies configurable begin and end of stage outputs to easily chain events to create complex movements.

The A-envelope despite it is a highly configurable and complete element, its user interface is been made for performing. Has LED monitors for every move.

 

Features

Association between channels

A-envelope allows to define channel groups, that shares configuration. This capability makes possible to define polyphonic configurations on the go up to 4 voices, in a simple way.

Each channel allows to

  • Modulate every of the ADSR stages in time or shape (Exp, Lin, Log) independently.
  • Adjust the amount of modulation using the stage knobs when acting as attenuverters.
  • Controlling the duration of each stage from 0 to 20 seconds using the stage knobs.
  • Controlling the shape of attack, decay and release stages.
  • Controlling the level of the sustain stage.
  • Configure the input activation mode as Gate, Trigger or Re-Trigger.
  • Configure the channel in single, loop or auto-loop mode.
  • Configure the BEOS (Begin and/or End Of Stage) outputs for each stage.
  • Trigger the channel manually using the test button.

Loop & Auto Loop

If the Gate mode is activated, the envelope will be automatically relayed at the end while the input signal remains activated.

If the Trigger mode is activated, the envelope will automatically re-launch when it finishes after receiving a pulse. Receiving a new pulse will stop the loop.

User interface

The user interface is meant to give a fast and direct access to every feature.

  • Instant visualization of each channel group thru the scale indicators and LED arches.
  • Direct monitoring of the signal and BEOS outputs thru specific LEDs.

Pulse / Gate
Selection of the entries work mode.

Input Jacks
Selection of the entries work mode.

Input Buttons
Trigger / gate buttons for the envelope manual start

Power consumption

The power consumption it is been measured with all LEDs on.

The +5V jumper selected (Recommended)

  • +5v = 170 mA
  • +12v = 35 mA
  • -12v = 23 mA

The +12V jumper selected

  • +5v = 0 mA
  • +12v = 245 mA
  • -12v = 23 mA

Protection

  • Protection for human body model electrostatic discharge (ESD) of 2kV.
  • Power connector reverse protection.
  • Protection against power polarity inversion.

Working Temperature

  • Working ambient temperature from -20ºC to 70ºC.

Accuracy

  • The accuracy for all specified values is < 1%.

Dimensions

  • 22HP
  • 3U
  • 38mm depth from the back of the panel to the power connector, including the connector.
  • Firmware Download Link 
  • Update procedure
    The A-envelope is provided with a USB A port, for firmware update purposes.
    Follow the steps to perform the update.
    1. Download from the firmware list the one you want to apply.
    2. Copy the downloaded file to at the root of your USB storage device.
    3. Rename the copied file to a-envgen.hex.
    4. Power off the module.
    5. Keep pressed the Attack modulation button.
    6. Power on the module.
    7. Now the module is in boot mode.
    8. The trigger and sustain modulation buttons will get enabled and the channel buttons will blink waiting for a USB storage device.
    9. Plug the USB storage device in the module USB port.
    10. If everything is fine, the channel buttons will show the firmware update check progress.
      1. If the firmware is not being detected, the channel buttons will remain blinking and you will need to check the previous steps.
      2. If the firmware is not valid or is not suitable for this module, the release shape LED will start blinking.
    11. If the firmware update check succeeds, the channel button will turn off and the loop, trigger and sustain modulation buttons will get enabled.
    12. Push the loop button to proceed with the update.
    13. The channel buttons will show the firmware update progress.
    14. Once the update terminates, the module will restart.

 

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Product:

Velectronic A-envelope - Associative Quadruple Envelope

£449.00