Jacquardi4
MIDI Envelope Generator
$5.99
Concept:
“Jacquardi4” is an AUv3 instrument that does not make any sounds but can send out 4 analog-like “Envelope” signals via MIDI control changes (MIDI CC). That is, the app contains 4 MIDI modules of envelope generator. The user can use them for modulating any parameter of 3rd-party’s plugins that can be assigned to MIDI CC , for example, cutoff frequency.
System Requirements:
AUv3 host that has a flexible capability of MIDI routing (AUM, apeMatrix, LoopyPro, etc).
Usage:
Just assign MIDI keyboard to Jacquardi4's MIDI IN (it needs to trigger Jacquardi4) and assign Jacquardi4's MIDI OUT to 3rd party's plugins.
Explanation of sliders:
Channel: determines MIDI channel.
Control Rate: determines the resolution of MIDI processing. Higher value, higher resolution.
Active: turn on or off the module. Useful when using MIDI learn functionality of 3rd party plugin.
MIDI CC: determines MIDI control number. (text-editable)
Amp: determines amplitude in dB
Offset: determines an initial value.
Attack: attack value.
Decay Time: decay time value.
Decay Curve: decay curve value.
Sustain: sustain value.
Release: release value.
Explanation of Preset File System:
At first make a new bank folder, in which you can save a preset file. And push "Save As" button.
Also the user can export or import preset files.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Preset Manager: Canceling the import caused a crash. Now fixed.
The developer, Satoshi Kajii, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Satoshi Kajii
- Size
- 12.7 MB
- Category
- Music
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2026 Satoshi Kajii
