AGB Hardware Sound Circuits

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AGB System Sound Circuits

The AGB System (and Modified AGB) comes equipped with a "Direct Sound" circuit that outputs sampled sounds in stereo and a "Compatible Sound" circuit that can output sound that is the equivalent of the conventional Game Boy (DMG/CGB). In this system it is possible to use both simultaneously, to play songs.

Also in this system, Direct Sound is capable of producing up to 12 sounds simultaneously. The Compatible Sound is the sound source (Sound 1, Sound 2, Sound 3 and Sound 4) used in Game Boy and can produce a total of four sounds simultaneously.

Figure: Conceptual Diagram of the AGB System Sound Circuits

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