C64

The Commodore 64 ("C64") sound is characterized by its SID chip;

• 3 tone generators (voices)
• 4 forms of waves (sawtooth, triangle, rectangle pulse width modulation, (white) noise)
• 3 amplitude modulator, until 48 dB
• 3 envelope generators
• Synchronization of the oscillators
• Ring modulation
• Programmable filters (low pass, bandpass, high pass)