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Welcome to the Fabla2 wiki!

Note that this page (just like all wikis..?) is outdated now. See the Fabla2 issues and http://openavproductions.com/fabla2 for updates!

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You probably want to look at http://openavproductions.com/fabla2. If you are actually here to discuss Fabla 2.0, then you're in the right place!

Fabla 2.0 Road Map

• Fabla2 is currently in alpha testing - and is not recommended for users.
• Fabla2 will enter beta testing, at which point power users can get involved
• After beta testing is complete, a release announcement will be made for Fabla2.

Progress reports

UI Features

• ✅ UX workflow design to aid live-performance
• ✅ Easy preview and load of samples (plays on click in SOFD)
• ✅ Sample loading pane for browsing samples
  • ✅ Parent folder button (SOFD used)
  • ✅ Preset saving / loading
  • ✅ Last used auto-opens
• ✅ Pad Visual Feedback
  • ✅ Pad play / stop events
  • ✅ Pad Mute Group
  • ✅ Trigger Mode (Gated / One-Shot)
  • ✅ Sample switch type (Single,Velocity,Round-Robin)
  • ✅ Layer names
  • ✅ Layer play button
  • ✅ Layer velocity ranges
  • ✅ Last played layer
• ✅ Sample Visual Feedback
  • ✅ Waveform display
  • ✅ Name
  • ✅ Frames / duration
  • ✅ : Velocity Ranges
  • ✅ Gain
  • ✅ Pan
  • ✅ Pitch
  • ✅ Start-point
  • ✅ ADSR State
  • ✅ Filter State

DSP Features

• ✅ AuxBus feature, routes audio to host DAW
• ✅ LV2 Atom communication framework in place
• ✅ LV2 Atom UI->DSP messages implemented with clean code
• ✅ LV2 Atom DSP->UI messages with UI state replies
• ⬜ Zipper filters for gain/pan
• ✅ 16 pads, 4 banks
• ✅ Worker thread sample loading
• ✅ Resampling files of non-native sample-rate
• ✅ LV2 State Save / Restore
  • ✅ Bank / Pad / Layer data written on save()
  • ✅ Bank / Pad / Layer data back in effect after restore()
  • ✅ LV2 requiredFeature state:makePath (for portable presets)

Pad Features

• ✅ FX per sample
  • ✅ 1x Dynamic Filter
  • ✅ Filter switch modes (High/Low/Band-pass + Resonance)
• ✅ Stereo and Mono samples
• ✅ Panning per sample
• ✅ Gain per sample
• ✅ Multi-Samples per Pad
  • ✅ Single Sample playback
  • ✅ Velocity layered playback
  • ✅ Round Robin playback
• ✅ High-quality resample playback (Cubic 4-point Hermite-curve, -42dB AA)
• ✅ Mute groups
• ✅ Off-By groups
• ✅ Trigger modes (one-shot, MIDI-gated)
• ✅ Adjustable start time
• ✅ Adjustable end time

Wishlist (Probably 2.1)

Master features

• ⬜ Master FX
  • ⬜ Filters
  • ⬜ Bitcrush / SampRate Reduction
  • ⬜ Distortion
  • ⬜ Expansion / Limiting
  • ⬜ 4-band parametric EQ

Pad Features

• ⬜ Renaming pads / Samples (Needs a lot of AVTK text input work)
• ⬜ FX send for Reverb / Delay busses
• ✅ FX per sample
  • ⬜ 2nd Filter (Switchable High/Low/Band-pass with Resonance)
  • ⬜ Bitcrushing, Samplerate reduction
  • ⬜ Distortion
  • ⬜ Equalizer (4 band parametric)
  • ⬜ Time-Stretching with pitch constant
  • ⬜ Content dependant pitch/stretch (melodic / percussive)
• ⬜ Velocity mappings
  • ⬜ Playback Volume
  • ⬜ Sample start position
  • ⬜ ADSR Attack
  • ⬜ Filter Cutoff (details)
• ✅ Drag-N-Drop support inside AVTK (eg Sample from one Pad to another)

UI

• ⬜ LV2 Extension / Options so presets can be included in UI
• ⬜ Entire UI resize: this can be a bit tricky, but perhaps. I'll check it out.
• ⬜ AVTK DnD with type identifier for re-arranging pads.
• ⬜ Drag-N-Drop from file browser (Needs PUGL X11 DnD to be implemented)
• ☑️ Performance Mode
  • ✅ Initial mockups and design
  • ⬜ Details of graphics
  • ⬜ User discussion / testing

Master Bus

• ⬜ AuxBus returns
• ⬜ AuxBus FX
  • ⬜ Reverb: Time, Damping parameters (Roomy, 100% wet AuxBus)
  • ⬜ Delay: Time, Volume and Feedback (Della, 100% wet AuxBus)

DSP

• ⬜ Ring Modulation: see here for details.
• ⬜ Retrigger (Refactor style).
• ⬜ Control groups (like mute-groups)
• ⬜ Velocity curve for note-on events: details
• ⬜ Loads "drum-loop" samples, with auto-slicing (aubio onset)
• ⬜ Time-Stretching maintaining pitch: per Sample (offline, rubberband)