ER-301/Pedal Looper

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Applications

Description

Parameters

mode

Control Type Has Sub-chain? Sub-chain Parameters Behavior
Threshold yes threshold (-1 to 1) trigger


A trigger into this parameter will toggle the Pedal Looper between recording and playing:

(Null) -> Record -> Play -> Overdub -> Play -> Overdub -> ...

stop

Control Type Has Sub-chain? Sub-chain Parameters Behavior
Threshold yes threshold (-1 to 1) trigger


A trigger into this parameter will stop recording and playback. Another trigger while the Looper is stopped clears the loop buffer and resets the loop length back to being undefined.

undo

Control Type Has Sub-chain? Sub-chain Parameters Behavior
Threshold yes threshold (-1 to 1) trigger


A trigger into this parameter reverts the loop buffer to its state before the last overdub (i.e. undo). Another trigger restores the last overdub (i.e. redo).

feedback

Control Type Has Sub-chain? Sub-chain Parameters Fader Scale
Gain/Bias yes gain (-10 to 10)

bias (, -36dB to 0dB)

logarithmic


This value determines how much of the original audio to keep when overdubbing. A value of 0dB means that the old and new are summed together as-is and will eventually cause the contents of the buffer to be so loud that it will clip when it arrives at the DAC. A value of means that the new material completely replaces the old material. Anything less than 0dB will cause the old material to slowly fade away with each recording pass. The following graph summarizes the number of passes required to fade to 10% of the original recorded amplitude vs the feedback amount:

Time-to-fade-dB.png