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RD4 - Features and Requirements

Features

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 (depending on devices capabilities)
  • 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
  • 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 can mute 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:

  • Customized layouts for phones, 7 and 10-inch tablets
  • Special additional rack view in portrait mode for 10-inch tablets
  • USB MIDI support for Android and iOS, connects external MIDI keyboards and controllers
  • External MIDI clock sync support
  • Automatic MIDI input focus when switching Instruments
  • Multi-touch control
  • Live session recording
  • Audio loop export feature
  • SoundCloud Sharing Kit integration
  • Session save capability
  • Cut/copy/paste pattern
  • OpenSL support for low latency
  • App2SD

System Requirements for Android devices

  • Android 4.1 or higher
  • Screen resolution 800×480 (WVGA) or higher
  • 1 GHz CPU or faster supporting ARMv7


Please note that for recording in real-time with the Analog synthesizer you will need a low latency Android device with Android 4.2 like the Google Nexus 4 or 10 or the Samsung Galaxy Nexus. Read more about audio latency on our FAQ page.


RD4 - Groovebox product page.