Category:Expansion audio

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Revision as of 01:32, 8 May 2014 by Lidnariq (talk | contribs) (since I redirected NES audio here, I should link to the APU reference also.)
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The Famicom had the capability of audio expansion, via an audio return loop on its cartridge connector. Cartridges containing additional hardware would mix the incoming 2A03 audio signal with their own audio signal produced by the mapper chip. The FDS also produced expansion sound which operated through the same cartridge connector.