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Ninjas 2

a 'Clearly Broken ™️' Sample Slicer

Rewrite of Ninjas, a sample slicer audio plugin. This plugin uses the DPF framework for the creation of audio plugins in lv2, vst2 and dssi formats. A stand alone jack app is also compiled

Goal:

Easy to use sample slicer, quick slicing of sample and mapping slices to midi note numbers. The target platform is Linux.

Intended usage:

Primarily targeted at chopping up loops or short ( ≈ 10 - 20 seconds) samples. Think drum loops, vocal chops etc. Currently there's no limit on imported sample lenght. User can play the slices using midi notes and change the pitch with midi pitchbend.

Features:

• Implemented:

  • load samples in audio formats as provided by libsndfile
  • maximum of 128 slices
    • slices 0 to 67 are mapped to midi note 60 to 127
    • slices 68 to 127 are mapped to midi note 0 to 58
  • slices can me snapped to onsets as detected by aubio
  • each slice has ADSR
  • each slice has 4 playmodes :
    • one shot forward
    • one shot reverse
    • loop forward
    • loop reverse
  • pitching of samples (+/- 12 semitones) via midi pitchbend
  • user editable slice start and end points
    • note: slices can not overlap
    • dragging the top marker edits both start and end point, keeping the slices continious
    • dragging the bottom markers edits the the start or end point of a slice.

• To be implemented:

  • mp3 import
  • exponential curves in ADSR
  • highlight slice when midi note is received
  • adding a bar:beat:ticks ruler for easier lining up slice points
  • states : store and retrieve up to 16 configurations of slices

• Things to rework:

  • adding and removing slice points in the waveform display, currently only the control can be used for that.
    • the control should display the number of slices.
  • add snap to grid / onsets

• Possible features

  • timestretch and pitch samples using rubberband
  • play marker in waveform display
  • overlay slice info on slices in waveform display
  • resizable user interface