RD4 - Groovebox

Published by: mikrosonic
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Description

Turn your iPhone or iPad into a musical instrument! RD4 - Groovebox is a music making app with virtual analog synthesizers, drum machines and effects.
Compose and arrange your music in real-time. Choose instruments individually for the 4 channels. Record live or set notes with the dedicated sequencer or piano roll of each instrument.
"This is no desktop app crammed onto a touchscreen. It seems the interface has been designed around your fingertips." Peter Kirn from CDM (createdigitalmusic.com)
Via in-app purchase: Upgrade to premium and unlock the following features:
Save Song, Export Loop, Audio Session Recording, Share Sounds, All 10 Drum Kits, All 5 Effects, Mixer Instrument Configuration, Effect Bus Configuration, MIDI Input and MIDI Clock Sync in/out.
This multi-touch enabled app makes it simple to invent unique loops and musical phrases. Manipulate the sound of the synthesizers by tweaking the oscillators, resonant filters and audio envelopes. Add audio effects like reverb, distortion, phaser, filter and delay to your sounds.
Appropriate both for experienced musicians and beginners.
Feature Overview
Mixer
- 4 channel rack mixer
- Instrument selection for each channel
- Volume control with level meter per channel
- Direct audio effect channel assignment
- Tempo control with tap tempo
- Channel mute and solo
Sequencer
- 2 banks with up two 8 bars per instrument
- Adjustable play modes from 1 to 8 bars and random modes
- Song Mode with a length of up to 99 bars
Choose between two virtual analog synthesizers and the drum machine for each channel:
Analog
- Modeled after legendary monophonic synths of the '70s
- For fat sounding bass and powerful lead sounds
- 3 oscillators with 6 different waveforms
- Each oscillator can be tuned precisely and has a warmth control for the typical analog sound
- Attack, Decay, Sustain and Release envelope generator
- Pitch wheel
- Low-pass filter (24dB/oct, 4-pole) with knobs for cutoff, resonance and an Attack/Decay/Sustain envelope generator
- Recording of played notes in real-time
- Piano Roll for editing recorded notes comfortably
- Or compose by drawing notes directly with the piano roll in 1/16 or 1/32 resolution
- Piano roll editing features: Transpose Pattern, Shift Sequence and Quantize Pattern
Bassline
- Reminiscent of the legendary 303 synthesizer
- Create bubbling basslines and screaming lead sounds
- Successor of the famous synthesizer Rubberduck from d-lusion
- High-quality low-pass filter with resonance, cut-off, and envelope controls
- Oscillator with 4 types of waveforms
- Real-time step sequencer with accent and slide
Beats
- Program beats with 10 classic drum kits: 808, 909, 606, CR-78, Linn, KR55, RX11, RZ1, DMX, DPM48
- Booming kick drums, snappy snares and throbbing percussions
- 8 channels per drum kit
- Punch control for volume and envelope adjustments
- Accent programmable for each drum channel
- Free assignable effects for each drum sound
- Channel mute, Closed Hi Hat mutes the Open Hi Hat
- Real-time pattern based step sequencer
Audio effects:
- 5 effects: Reverb, distortion, filter, phaser and delay
- Real-time controllable
- X/Y control field for each effect
- 4 effect sends
- Chaining of 2 effects
Technical features:
- Audiobus support
- Core MIDI support
- Connects to all available MIDI input sources automatically
- MIDI Clock Sync support, in/out
- Automatic MIDI input focus when switching Instruments
- Multi-touch control
- Live session recording
- Audio loop export feature
- Session save capability
- Cut/copy/paste pattern
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Screenshots

RD4 FAQ

  • Is RD4 free?

    Yes, RD4 is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is RD4 legit?

    🤔 The RD4 app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.

    Thanks for the vote

  • How much does RD4 cost?

    RD4 is free.

  • What is RD4 revenue?

    To get estimated revenue of RD4 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating
App is not rated in Pakistan yet.
Ratings History

RD4 Reviews

Crap

no real time on

United States

Doesn’t work. The “Analog” is the only part that plays. The rest is nothing.

It’s Fantastic! Also needs upgrades!

Sparky The Railfanner on

United States

The app is really worth playing and making music with! The 808, 909, 303, reverb, distortion, delay, and filter really works! Add on UPDATE: can you add crashes to the drum machines like for the 909 and the other ones? Also the 303 is not really accurate to the real TB303, when I adjust the knobs for the 303 extreme high Churps we’re going and I didn’t like that. Yes the 303 has chirps, but the one in this app has lots. If so can you probably fix that? Thank you. :)

Nice!

anickt on

United States

UPDATE - still worth 5 stars to me. Great for acidic loops. Easy export to AudioShare. Still like it! I'm giving it 5 stars right away because I found it so intuitive and easy to get some interesting results from. Compared to other similar apps it just seemed to click for me. I bought the IAP pretty quickly after trying it out. There's plenty more to explore but I'm already sold. I think they did a good job with this so far.

Ignore The Hate

NoUserErrorHere! on

United States

RD4 is magnificent: one of the best workflows I've ever encountered for iOS music making and just the right balance of choice x limitation. The IAP is a bargain and the fact that one can have multiple 303 (or other) instances running simultaneously is a thing of pure beauty. RD4 sounds amazing as well and we're lucky to have it. Easy 5 stars.

Longest "Bait and Switch" Scheme Ever Run In App Store

whocaresatthispoint on

United States

Run from this app. The slim version is no longer worth the few seconds it takes to download. I've loved this app and have been using it regularly for a very long time—previously had my review at four stars—until this afternoon, when an automatic update removed all but one of its drum kits and many of its other features. Tapping restore does nothing to restore any of the elements I've been using without a problem for the entire time I've been using the app. I'm not sure why the developers felt it necessary to utterly neuter, and thus eliminate the possibility of enjoying, the user experience, but for anyone in the market for an app that's a versatile groovebox, drum machine, synth, etc., and you've heard good things about this one, ignore what you've heard. More important, though, can you really trust developers who decide without warning to take away features you've had and have been using for years in order to engage in a scheme to begin charging for them? In my view, absolutely not.

Link crashes app

Klrxs on

United States

Tapping Link crashes the app. In-app keys respond slow. Sequence fidgets while actively controlling things. 303 sounds aight I guess. Nice that they give a little bit fix.

Feedback

KBarBRanch on

United States

Sorry, wish it was better not so great interface, samples sound old 8bit cheesy. Waste of time!

Great!

Mikes jello on

United States

Fantastic mobile Acid House studio!

Wasted my money

Robear parry on

United States

I bought this thinking it would work with my novation launchkey 25. Nothing maps to my board. In all fairness the description says it will map to the launchkey mini, but I thought it would work on any launchkey. It's just very rudimentary, for instance, to turn off the sequencer requires button pushing to get back to the sequencer page. Why not put a play/pause on each page? I will wait to see if mikrosonic improves the interface and adds more keyboards to its midi mapping. I was fooled in a moment of weakness, but never again!

This could be cool, but....

zounds23 on

United States

Why don't you just offer the app for 5.99$ instead of doing the whole "in app purchase" thing? As it is, it does not give you enough stuff to work with to even decide if you like it. Until these developers clue into this, I'm not even going to waste my time with apps like this anymore, which is sad for the developers because I am sure I am not the only one who feels this way.

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