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2XB303 Bass Synth Sequencer

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App History

Nov 27, 2018
Version 1.6
Nov 22, 2018
Nov 22, 2018
Version 1.5
Sep 12, 2018
Version 1.4
Aug 15, 2018
Version 1.3
Jul 18, 2018
Version 1.2
Jul 14, 2018
Version 1.1
Jul 05, 2018
New App: $4.99, v1.0
Jun 22, 2018

Other apps by Rob Wilmot

iTunes Description:

A creative bass synth sequencer for creating electro melodies or dirty phat & funky acid techno basslines.
Inspired by the acid house music scene. An IOS exclusive, compared to a modern equivalent to Rebirth (Rebirth was a popular tb - 303 clone a decade ago).
Look at the video tutorial for a how-to guide. Listen to what you can create easily with 2XB303.
Create synth sequences using standard step functions as seen on various sequencers like the Roland SH 101 synthesizer or sequences can be generated randomly.
Easily capture whatever you hear and export to AudioShare, Audio-Copy, Email or iTunes Shared Folder
Tweaking cut-off & decay Env-Mod & glide & accent etc for that classic sweet-spot acid growl Tap to dials to swipe up & down for fine adjustment of knobs.

The sound was first compared to a Cyclone TT - 303 & tweaked to extend sound shaping beyond a just bass maker. Waves have optional harmonic version, noise, LFO, glide speed & PHAT/ BASS, and great effects. This is designed to give more creativity beyond an acid synth bass maker.

Use the keyboard for the following cool tricks:
[Sequence/Control/Transpose]: Transpose both channels simultaneously while playing.
[Sequence/Control/Pattern]: Instantly switch to a saved sequence while playing. Keys correspond to stored program numbers, starting from the current program thats loaded (key 1 is your current program, key 2 is current program+1). Highlighted keys show stored programs. This is great for building up live tracks, or instant crossfading between programs. You can also "Hold settings" so it locks settings like effects.

METRONOME: Toggle drum beats -better than tick-tocks to accompany your bass lines

LFO auto control low pass CUT-OFF and/or PITCH. The pitch level can give a vintage effect subtly detuning with low SPEED or faster for chaotic random pitches.

EFFECTS (Global/master are in yellow.)
OVERDRIVE, COMPRESSION adjusts threshold, ratio, & gain. This is a global effect.
ECHO tempo synced with feedback & wetness.
SAVE ALL. When not playing, save to memory.

Ableton Link syncs with apps .Enable for precise timing without syncing. Press LINK button at the bottom for settings.
MIDI sync with External, Virtual or Audiobus. 2XB303 can be master or slave. ( any simple class-compliant USB should work but some may need to be power assisted)
Virtual MIDI In is always on. If you send from another app AND receive MIDI clock then you will be receiving both MIDI CLOCKS. Choose only one unless you want double tempo (which can be interesting).
While Ableton Link is enabled you can send clock. This means you can use one app to control 2XB303 with external hardware
MIDI note data is sent out on each channel

Record a fixed length, default to 32 steps. Can be changed in settings.
Arming the sampling with CAPTURE (flashing). Starts at counter 1 (ON).
PLAY CAP to listen to your sample loop.
Audio can be routed via IAA into apps like Apple's Garageband. Garageband will also sync your sequence for excellent multi-track recording.
Audiobus 3. Route audio to mix or record into other applications
Audiobus Filter. Audiobus 3 V3 input will travel through channel 1 and then gated by sequencer. Mute Ch 1 to hear just audio input. Play vocal loops or guitar riffs with a synced filter & delay controlled by your sequence. Awesome creativity!

To save you press "Save all", it then flashes. Now choose destination ("!" means its occupied ) then press "Save All" to confirm.

What's new in v1.6

1: Changed the way the dials work:
Instead of jumping instantly to where you touch, you can now smoothly turn the dials by moving up and down the screen after the initial touch on the dial you want to adjust.
Also, if you double click the dial, it will snap to either of three nearest points (start, mid-point and end) which is handy for resetting to default positions. If you preferred the original touch to point method, you can choose that way in the settings/system.
2: Moved WAVE shape dial to quick access buttons.
3. Fixed an issue where clicking to open the Ableton Link settings view for the first time would interrupt the main audio processing thread.

iPad Screenshots:

iPhone Screenshots:


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