RP-1 - Dual Digital Delay FX

Two separate (stereo) delay lines allow for a wide range of effects ranging from basic slapback and ping-ping type echos to complex modulations and soundscapes.

* Overview
- Digital Stereo Delay with High- and Lowpass filters, Stereo spread and Looping
- Separate modulation Delay for Chorus, Vibrato, Flanger, Panning, Phaser & Tremolo effects
- Both sections can be bypassed individually
- Mod section can be routed pre or post delay
- Delay Times from 10ms to 2000ms (or 1/32 to 2bars)
- Tempo Sync via AudioUnit Host or Ableton Link
- Tap Temp and Manual Tempo
- Normal, Dotted and Triplet
- Stereo Spread
- Simple 1-Button Looping

* Connections
- AudioUnitV3 Effect
- Inter-App Audio Effect
- Audiobus (Filter)
- Ableton Link
- USB Audio Interface
- Microphone

What's New

Version 1.3.3

- Fixed UI issues when running in AU mode
- Fixed UI issues when running in AU in fullscreen mode
- Fixed an issue were tempo sync would not work properly in some cases

Ratings and Reviews



Finally I found an app that works my phantom powered condenser mic and the sound quality is amazing so far I'm still im the beginning haven't used this yet but I know it work Great. Thank You👍🏻

Time Tool


The app works well on my iPad Air 2 and is very useful to have multiple instances in various sound chains.

Apple needs to have a standardized way of saving AU presets with all AU apps and AU hosts so we're not recreating presets every time we create our own presets in a different AU host app (e.g. AUM and Cubasis) and it should not fall upon the developer's to come up with a standard because Apple has so far failed to do so.

Sick! Stop Snoring!!!


This app has to be one of the best I've heard in the app world. Might be the best period! I have no idea why I am the first to review this musical FX app. All y'all electro's out there, get your little 6 dollars up (there aren't even any hidden cost) and grab! Or go sample the sounds on their website yourself! 5"stintnys" all day long!


Kai Aras
27.4 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 - Kai Aras


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