Sidereal.

A MOS 6581/8580 sound chip, a 6510 CPU and 64K of RAM, running in this page. Feed it a .sid file.

Drop a .sid file here or tap to browse

Nothing loaded

Load a tune, or press play to hear the built-in test pattern.

1 / 1 0:00

Voice 1

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Voice 2

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Voice 3

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Chip Machine Quality Filter

Volume fc — res 0 bypass

Chip registers

Idle.

Combined waveforms use a bitwise-AND approximation rather than sampled wavetables, and the 6581 cutoff curve is an approximation of a part that varied chip to chip — expect close, not bit-exact.