Features
- three separately programmable independent audio oscillators (8 octave range, approximately 16 - 4000 Hz)
- four different waveforms per audio oscillator (sawtooth, triangle, pulse, noise)
- one multi mode filter featuring low-pass, high-pass and band-pass outputs with 6 dB/oct (bandpass) or 12 dB/octave (lowpass/highpass) rolloff. The different filter-modes are sometimes combined to produce additional timbres, for instance a notch-reject filter.
- three attack/decay/sustain/release (ADSR) volume controls, one for each audio oscillator.
- three ring modulators.
- oscillator sync for each audio oscillator.
- two 8-bit A/D converters (typically used for game control paddles, but later also used for a mouse)
- external audio input (for sound mixing with external signal sources)
- random number/modulation generator
Read more about this topic: Commodore 64 Music
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