ToneBytes has released Bleep’, a free VSTi synthesizer plug-in for Windows, inspired by the sound of MOS Technology SID.

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
• Modulator Envelope Generator
• Pseudo arpeggiator
• Overall multimode filter
• Built-in preset manager with ability to patch name editing
• In addition, VST automation and full MIDI Learning are supported.

You can preview ToneBytes Bleep’ below: