Bleep' / Free

Bleep' — is a free VSTi synthesizer plug-in for Windows which inspired by the sound of MOS Technology SID. At the same time Bleep' is not emulator of this chipset but only partially similar to its architecture.

Main features:

  • 3 oscillators with four waveforms: sawtooth, triangle, pulse (with PW) and noise
  • Each oscillator has own detuner, ADSR envelope and multimode LP/BP/HP filter
  • Multimode LFO synced with BPM and with Random mode
  • Modulator Envelope Generator
  • Pseudo arpeggiator
  • Overall multimode filter
  • Adjustable degrader
  • Built-in preset manager with ability to patch name editing

In addition, VST automation and full MIDI Learning are supported.

System Requirements:

Your computer must meet the following minimum requirements to run the Bleep':

  • Intel or AMD Processor with at least of 500 MHz (1 GHz or higher are recommended);
  • At least 512Mb of ram memory;
  • Windows Operating System (Windows XP SP2, Windows Vista and Windows 7 are supported);
  • Up to 10 Mb of free disk space;
  • 1024x768 or higher screen with 16 bits or more colors;
  • VST 2 compatible host.


08 apr 2012 — Bleep' 1.1 is released.

  • New: Noise/Random selector for oscillators
  • New: EG now supports 8 and 16 bit modes
  • New: Overall adjustable degrader
  • New: Added random mode for LFO
  • Changed: Presets manager now have 96 items (32 new)

10 mar 2012 — Bleep' 1.0 is released.

You may also be interested in:
 Bend Box  — is a software synthesizer that emulates a circuit-bending device.  Reese Machine  — is a monophonic subtractive synthesizer optimized for creating deep, rich, vibrating bass for various kinds of electronic music, especially Drum'n'Bass, Speed Garage, Techstep, etc.
Bleep' has been tested and works fine in Steinberg Cubase, Cakewalk Sonar, Ableton Live, Image-Line FL Studio, Synapse Audio Orion and Cockos Reaper.
tags: Chiptune, 8bit, Commodore, Atari, POKEY, SID, Lo-Fi, C64, PSG, MOS technology, Sound Chip, VSTi, Plug-In, Synth, Freeware

Bleep' is only available in Windows VST format. Versions for Mac OS or Unix/Linux systems does not exist.
Be careful when placing the order.