Digital Audio Multi-FX For iPad
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DFX is a powerful real-time Quad Multi-Effects Processor for iPad. With an intuitive and beautiful user interface for easy playability and instant fun.

We are curious. We like new experiences. We welcome unexpected discoveries. And… we are musicians. It was an obvious choice for us to develop for the iPad the multi-effects that we wanted, that we needed for our thirst for sound. Four powerful and multipurpose chained effects, driven by trackpads for fast and easy sonic explorations. Like a million of pedal boards on a device.

Plug in any audio source, a guitar, a bass, a microphone, a DJ mixer. Or play your favorite iOS synth or drum machine with Audiobus or Apple Inter-App Audio. Or why not playing a track from your iTunes Music Library. Select one, two, three or four effects amongst 35 hi-quality digital audio effects and explore endless sonic possibilities. Delays, echos, reverbs, filters, tremolo, autowah, compressors, distortions, vocoders, resonators, etc… more possibilities that you can imagine.

At last, but not least, DFX is also a great little sound design machine. Just select one of the built-in tone synthesizers on the first effect and let your imagination build new sound landscapes at the tip of your fingers. We have had a lot fun making ours in the Factory presets.

No in-apps, no ads, no fuss. DFX is simple, intuitive and fun. No user guide required ;^)


– From the makers of DM1 – The Drum Machine

– Designed by Jonas Erikson

– 10 effect categories

– Delays : Sync Delay, Ping Pong, Tape Delay

– Reverbs : Metal box, Hall, Descent, Reflections, Freeze,

– Filters : High Pass, Low Pass, High Shelf, Low Shelf

– Phase : Phase Flux, Vibe Chorus, Phase Shift

– Modulation : Wave Tremolo, AutoWah, Envelope Follower, Ring Modulator

– Distortion : Wave Shaper, Bias, Raw, Bit Crusher, Synthizer

– Voice FX : Vocoder, Resonator, Formant Simulator

– Pan : Stereolizer, AutoPan, Leslie

– Dynamics : Noise Gate, Compressor

– Instruments : High Tone Synth, Bass Tone Synth

– Audiobus compatible

– Audio Inter-App compatible

– 4 playable trackpads with real-time waveforms

– Live Effect Swapping

– Live recording

– Recordings manager

– Recordings exporter

– Built-in Countdown

– Built-in Tone Synths (high and bass)

– Built-in Output Limiter for a controlled output

– Built-in Metronome

– Tempo Synced animations

– Effect Solo Mode

– iTunes playback

– Presets Manager (factory & user)

– Fullscreen Favorite Presets for fast live access


birdStepper Audio Effects For iPad
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birdStepper provides you endless new musical possibilities by making time-synced effect automation fast and simple. Filter sweeps? Check. Dubstep wobbles? Ch-ch-ch-check. Complete annihilation of your sound? Better believe that’s a check.

Whether you’re a guitarist, singer, or synth player, you’ll be amazed at what you can create with birdStepper. birdStepper comes with 8 jaw-dropping effects that you can re-order and automate with a flick of your finger. Better to show than tell:

birdStepper is compatible with Audiobus and can be synchronized to an external clock source via Core MIDI. Its simple yet powerful clock allows you to quickly change tempo, time signature, beat divisions and more.

birdStepper was designed with performing musicians in mind, so whether you’re on stage or in the studio, you can count on birdStepper’s sound and stability no matter what you throw at it.

Stop fiddling with the knobs on your pedals. It’s time to change your sound.


Automatable effects:
Pitch Shift

Post-processing effects:
Noise gate
Output volume

Audiobus compatible (Input + Filter slots)
MIDI clock sync
Flexible clock and tempo controls
Unlimited preset saving

Optimized for iPad 3 or later.

birdStepper is available for $4.99

Rrarrow Modular Effects For iPad
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rrarrow audio effects for ipad

rrarrow is the experimental modular audio effect and noise machine for the iPad featuring extended feedback capabilities.

Key features:
– Simplicity. The interface is simplified for faster assembly and more flexible connectivity — you can assemble your effect very fast and control all the processing parameters with the audio signal.
– Feedback capabilities. You can add feedbacks to the audio chain to get some chaotic noise sounds
– Twelve blocks for audio processing:
– Sine generator. Basic oscillator with sine waveform
– Signal multiplier
– Delay
– Frequency shifter
– Envelope follower
– “Lorenz attractor”
– Quantizer
– Sample-and-hold
– Reverb
– Special Lowpass filter
– Clipper
– Nonlinear shaper (for self-oscillating circuit)
– Audiobus support. Now you can stream live audio directly to other Audiobus-compatible apps! See http://audiob.us for more information. Works as input and filter.
– Background audio support: enabled when connected to Audiobus and user switchable otherwise.

iPad2 or newer is recommended for complex presets

rrarrow is available for $3.99

Swoopster Flange Fuzz Vibrato For iPad
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Swoopster Holderness Media

Swoopster is a wild, fuzzed out Flanger/Vibrato effect designed for Audiobus and Inter-app audio.

Process synths, drum machines and hundreds of other apps by connecting through Audiobus. Use Swoopster as an effect inside Garageband, Auria, Cubasis, and AudioShare using Audiobus or Inter-app audio.

Swoopster features two distinct modes:

● PERFORM mode is focused around four XY touch pads. Touch to control flanger speed, manual, feedback and fuzz amount independently for left and right channels.

● TWEAK mode features large expressive sliders and additional effect parameters, allowing you to fine tune your sound.

The center panel of Swoopster’s interface is part of the instrument and meant to be played in real-time, including the scrollable preset list. Tap a preset to instantly load it’s settings, play different presets in rhythmic patterns, or re-trigger the current preset to restart the sweep of the Flanger. The MUTE and BYPASS buttons function as momentary switches for DJ mixer style control.

Echo Pad users loved the creative stereo imaging possible with its effects, and this approach continues with Swoopster. Both Perform and Tweak modes allow you to control the left and right channel’s effect parameters independently for wide stereo sound design. You can easily toggle between linked and unlinked channel parameters by tapping the LINK button.

In addition to Audiobus and Inter-app Audio support, Swoopster can also process external instruments such as guitar, voice and synths by connecting a microphone or professional audio interface such as the Apogee Jam, ONE, or any iOS compatible USB audio interface.

● requires iOS 7.0 or later
● iPad Mini/iPad 2 or newer
● Audiobus compatible (Effect,Input and Output)
● Inter-App audio compatible (effect node)
● compatible with USB audio interfaces


● stereo Fuzz, Flange and Vibrato effect processor
● versatile flanger capable of sounds ranging from smooth phasey flange to wildly distorted, pitch shifted madness
● flanger with positive and negative feedback
● independent left and right channel effects engines can be controlled separately or linked
● Audiobus compatible (supports all 3 slots)
● Inter-App Audio compatible (effect node)
● true stereo input and effects processing
● several output style options including normal stereo, wide stereo, and sum to mono

Swoopster works with just about any professional iOS compatible USB audio interfaces. Here is a list of interfaces that have been tested and verified to be compatible:

● Apogee Jam
● Apogee Mic
● Apogee ONE for iPad/Mac
● Apogee DUET for iPad/Mac
● Apogee QUARTET for iPad/Mac
● iRig
● iRig HD
● iRig iMic
● Focusrite Scarlett series (*requires USB hub)
● Alesis io2
● Alesis IO Dock
● Behringer UCA202
● many more

Swoopster is available for $2.99

Audio Effects For AudioBus iOS
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Add Various Audio Effects to Audiobus Sound.
App has Echo, Reverb, Ring Modulation, Flanger, Tremolo, Vibrato, Chorus, Wahwah.
A wide selection of Low pass, band pass and high pass filters
Various Other filters

What’s New in Version 1.4

First Audiobus Version – free during bug fix mode.
Old non-Audiobus support removed. This is an Audiobus-only app.

iPad AudioBus Effects


  • iPad Loops is an iOS music production blog dedicated to exposing the best iPad apps musicians, producers, and Djs. This is not a database of every app. It is, however, one of useful recommendations from someone with many years in music production. I try to update it on a daily basis (ok sometimes every two days) and I do my best to post useful apps only. My name is Jason Donnelly (Dj Puzzle). You might know me from my royalty free loop packs and sound design. Some of the apps that contain my sounds are Synth One, EG Segments, Hammerhead, Retronyms AudioCopy, Audio Evolution Mobile, LP-5, iPRO.DJSAMPLER, Looptastic. My work is published by Roland, Antares, Magix, Soundtrack Loops, Sample Logic, Acoustica, Loopmasters and many more. Subscribe to our RSS feed below to get updated when new apps are posted.
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