Synthesizer Cartridge for the Atari 2600

3 days ago

Synthcart turns the Atari 2600 into a synthesizer with an arpeggiator and rhythm patterns.
Works with Atari keyboard controllers or video touch pads, available on eBay.
Features include multiple sound types, arpeggiator, beat box, tremolo, and attack/release settings.
No TV required for operation; includes an Easter egg light show mode.
Compatible with all Atari 2600 models, including the Junior and 7800 (with a mod for full sound access).
No built-in sequencer or drum beat editor, but source code is available for customization.
Sound is generated by the Atari 2600's TIA chip; no additional hardware in the cartridge.
Direct audio out requires soldering modifications or using a VCR with A/V outputs.
No automatic sync with external gear, but manual tempo matching is possible due to the Atari's accurate clock.
No MIDI support, but Highly Liquid's open-source MIDI kits were previously available.
Limitations include limited pitch range, non-standard tunings for some sounds, and coarse tempo adjustments.
Tempo values are fixed and very accurate, derived from the Atari's clock frequency.
Not fully functional on SECAM Atari models due to differences in the B&W/Color switch.

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