Bass Line is kind of a new version of Freebee, the free stand alone 303 emulation, although the engine has been rewritten from scratch and features an improved filter and control signal model.

Features:

• Authentic Bass Line emulation (Monophonic - 1 VCO/1 VCF/1 VCA).
• Synth:
  • Tone generator: 5 Octaves range (C1-C5).
  • Two waveforms (Sawtooth and Square wave).
  • Filter type: Low pass resonant.
  • Filter range: 20Hz-22kHz resonance frequency.
  • Filter slope: 18 or 24dB/octave.
  • Envelope control: Modulation, Decay and Accent.
  • Decay time approx 0.2 - 3.5 sec.
• Internal step sequencer:
  • Pattern memory: 128 Patterns.
  • 1 to 64 steps per Pattern.
  • Effects per step: Accent, Slide and transpose (up/down).
  • Time modes: 16th notes and rest.
  • Tempo range: 25-250 BPM or 1-500 BPM in Host sync mode.
• Full MIDI CC control with learning function.
• Analog tuning mode.
• Integrated distortion unit.
• High pass filter (low cut).
• Rebirth RB-338 pattern import.
• Freebee pattern import/export.
• Two MIDI modes (Pattern or Note).
• Sample accurate sync to VST host.