The LushOne Echo module provides highly flexible delay and echo
effects. All key parameters can be set manually or manipulated using a
control voltage. With the LushOne echo you can simulate room echoes or
create space-age effects. The LushOne Echo also contains an envelope
generator which produces a control voltage based on the amplitude of
the input signal.
The LushOne Echo kit continues the design principles of the
base. A single board design is used to keep costs low. The LushOne echo
uses the popular PT2399 digital delay chip with supporting analogue
circuits. The PT2399 is a really fun chip. At long delays it gets noisy
and creates a lo-fi roughness to the sound. At medium and short delays
it has a nice, natural quality. The ability to vary the delay
on-the-fly and with a control voltage allows it to create space-age
swoops and zaps as well as more normal static delay effects.
The LushOne Echo can be added to any level of the LushOne system. It
can be used with just the LushOne Base or integrated in to a bigger
system. The audio sample below shows how even with just the LushOne
Base and LushOne Echo you can create some amazing sounds.
The LushOne Echo provides:
- Echo effect
- Add echo effects to any input signal
- Adjustable input sensitivity level
- Adjustable level of original input in the output
- Adjustable level of echo in the output with voltage control
- Adjustable level of feedback in the echo circuit with voltage
- Adjustable delay with voltage control
- Exponential response on delay control for ease of use
- Internal or external feedback switch which allows extra
processing functions to be inserted in the feedback loop using the
- Power-on protection circuit so that the PT2399 chip can be run
at its shortest possible delay without damage
- Envelope generator
- Create control voltage based on amplitude of input signal
- Allows effects to respond to volume level of a sound
- Single board design including all controls and connectors (except
power-in) providing straightforward construction and neat presentation.
A laser cut case is available that contains up to two LushOne modules or it can easily be housed in a project box.
- Open-source access to schematics
User documentation is available on the LushOne Echo main page.
Kit information and build instructions
The LushOne Echo kit is for self-assembly at home.
Difficulty level: 3/5 (1 = Easy, 5 = Hard).
The LushOne Echo is straightforward to build but it does have quite
component count. It is recommended that you have some experience in
building electronics before starting on this kit.
For details on the kit including schematic, code and assembly
instructions go to the LushOne Echo