Odo has released a beta of Unknown 64 Pro, a free synth designed to recreate Commodore 64 sounds.

Unknown 64 Pro is simular to the previously released Unknown64 (check Odo’s website for features).

New in Unknown 64 Pro (compared to Unknown64)

• Changed sound and pitched noise
• Improved CPU
• New sequencer
• Polyphonic (up to 3 sounds)
• New envelope (choice between restart and pickup)
• MIDI learn
• Changed ringmod (control by Osc or LFO)
• Bit crusher
• 128 presets

Unknown 64 Pro is still in beta and can be downloaded here.